Commit | Line | Data |
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357f1ef5 MK |
1 | /* |
2 | * Copyright (c) 1988 Regents of the University of California. | |
3 | * All rights reserved. | |
4 | * | |
979ea28d MK |
5 | * This code is derived from software contributed to Berkeley by |
6 | * Computer Consoles Inc. | |
7 | * | |
1c15e888 C |
8 | * Redistribution is only permitted until one year after the first shipment |
9 | * of 4.4BSD by the Regents. Otherwise, redistribution and use in source and | |
10 | * binary forms are permitted provided that: (1) source distributions retain | |
11 | * this entire copyright notice and comment, and (2) distributions including | |
12 | * binaries display the following acknowledgement: This product includes | |
13 | * software developed by the University of California, Berkeley and its | |
14 | * contributors'' in the documentation or other materials provided with the | |
15 | * distribution and in all advertising materials mentioning features or use | |
16 | * of this software. Neither the name of the University nor the names of | |
17 | * its contributors may be used to endorse or promote products derived from | |
18 | * this software without specific prior written permission. | |
19 | * THIS SOFTWARE IS PROVIDED AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED | |
20 | * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF | |
21 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
357f1ef5 | 22 | * |
1c15e888 | 23 | * @(#)if_enp.c 7.7 (Berkeley) 6/28/90 |
357f1ef5 | 24 | */ |
6013a59e SL |
25 | |
26 | #include "enp.h" | |
6013a59e | 27 | #if NENP > 0 |
6013a59e | 28 | /* |
7779e59b | 29 | * CMC ENP-20 Ethernet Controller. |
6013a59e | 30 | */ |
6013a59e SL |
31 | #include "param.h" |
32 | #include "systm.h" | |
33 | #include "mbuf.h" | |
34 | #include "buf.h" | |
35 | #include "protosw.h" | |
36 | #include "socket.h" | |
37 | #include "vmmac.h" | |
bc2cef1e | 38 | #include "ioctl.h" |
6013a59e | 39 | #include "errno.h" |
bc2cef1e SL |
40 | #include "vmparam.h" |
41 | #include "syslog.h" | |
6013a59e SL |
42 | #include "uio.h" |
43 | ||
44 | #include "../net/if.h" | |
45 | #include "../net/netisr.h" | |
46 | #include "../net/route.h" | |
bc2cef1e | 47 | #ifdef INET |
6013a59e | 48 | #include "../netinet/in.h" |
6013a59e | 49 | #include "../netinet/in_systm.h" |
bc2cef1e | 50 | #include "../netinet/in_var.h" |
6013a59e SL |
51 | #include "../netinet/ip.h" |
52 | #include "../netinet/ip_var.h" | |
53 | #include "../netinet/if_ether.h" | |
bc2cef1e SL |
54 | #endif |
55 | #ifdef NS | |
56 | #include "../netns/ns.h" | |
57 | #include "../netns/ns_if.h" | |
58 | #endif | |
59 | ||
60 | #include "../tahoe/cpu.h" | |
61 | #include "../tahoe/pte.h" | |
62 | #include "../tahoe/mtpr.h" | |
6013a59e SL |
63 | |
64 | #include "../tahoevba/vbavar.h" | |
bc2cef1e | 65 | #include "../tahoeif/if_enpreg.h" |
6013a59e | 66 | |
bc2cef1e SL |
67 | #define ENPSTART 0xf02000 /* standard enp start addr */ |
68 | #define ENPUNIT(dev) (minor(dev)) /* for enp ram devices */ | |
7779e59b SL |
69 | /* macros for dealing with longs in i/o space */ |
70 | #define ENPGETLONG(a) ((((u_short *)(a))[0] << 16)|(((u_short *)(a))[1])) | |
71 | #define ENPSETLONG(a,v) \ | |
72 | { register u_short *wp = (u_short *)(a); \ | |
73 | wp[0] = ((u_short *)&(v))[0]; wp[1] = ((u_short *)&(v))[1];} | |
6013a59e SL |
74 | |
75 | int enpprobe(), enpattach(), enpintr(); | |
fea301bf | 76 | long enpstd[] = { 0xfff41000, 0xfff61000, 0 }; |
bc2cef1e | 77 | struct vba_device *enpinfo[NENP]; |
6013a59e | 78 | struct vba_driver enpdriver = |
bc2cef1e | 79 | { enpprobe, 0, enpattach, 0, enpstd, "enp", enpinfo, "enp-20", 0 }; |
6013a59e | 80 | |
979ea28d | 81 | int enpinit(), enpioctl(), enpreset(), enpoutput(), enpstart(); |
6013a59e SL |
82 | struct mbuf *enpget(); |
83 | ||
6013a59e SL |
84 | /* |
85 | * Ethernet software status per interface. | |
86 | * | |
87 | * Each interface is referenced by a network interface structure, | |
88 | * es_if, which the routing code uses to locate the interface. | |
89 | * This structure contains the output queue for the interface, its address, ... | |
90 | */ | |
bc2cef1e SL |
91 | struct enp_softc { |
92 | struct arpcom es_ac; /* common ethernet structures */ | |
93 | #define es_if es_ac.ac_if | |
7779e59b | 94 | #define es_addr es_ac.ac_enaddr |
bc2cef1e | 95 | short es_ivec; /* interrupt vector */ |
bc2cef1e SL |
96 | } enp_softc[NENP]; |
97 | extern struct ifnet loif; | |
98 | ||
99 | enpprobe(reg, vi) | |
100 | caddr_t reg; | |
101 | struct vba_device *vi; | |
6013a59e | 102 | { |
bc2cef1e SL |
103 | register br, cvec; /* must be r12, r11 */ |
104 | register struct enpdevice *addr = (struct enpdevice *)reg; | |
105 | struct enp_softc *es = &enp_softc[vi->ui_unit]; | |
6013a59e | 106 | |
bc2cef1e | 107 | #ifdef lint |
9d61b7ff | 108 | br = 0; cvec = br; br = cvec; |
bc2cef1e SL |
109 | enpintr(0); |
110 | #endif | |
9d61b7ff | 111 | if (badaddr((caddr_t)addr, 2) || badaddr((caddr_t)&addr->enp_ram[0], 2)) |
bc2cef1e SL |
112 | return (0); |
113 | es->es_ivec = --vi->ui_hd->vh_lastiv; | |
114 | addr->enp_state = S_ENPRESET; /* reset by VERSAbus reset */ | |
115 | br = 0x14, cvec = es->es_ivec; /* XXX */ | |
116 | return (sizeof (struct enpdevice)); | |
6013a59e SL |
117 | } |
118 | ||
119 | /* | |
120 | * Interface exists: make available by filling in network interface | |
121 | * record. System will initialize the interface when it is ready | |
122 | * to accept packets. | |
123 | */ | |
bc2cef1e SL |
124 | enpattach(ui) |
125 | register struct vba_device *ui; | |
6013a59e | 126 | { |
bc2cef1e SL |
127 | struct enp_softc *es = &enp_softc[ui->ui_unit]; |
128 | register struct ifnet *ifp = &es->es_if; | |
6013a59e | 129 | |
bc2cef1e | 130 | ifp->if_unit = ui->ui_unit; |
6013a59e SL |
131 | ifp->if_name = "enp"; |
132 | ifp->if_mtu = ETHERMTU; | |
6013a59e SL |
133 | ifp->if_init = enpinit; |
134 | ifp->if_ioctl = enpioctl; | |
385e8f24 | 135 | ifp->if_output = ether_output; |
979ea28d | 136 | ifp->if_start = enpstart; |
003ca8a0 MK |
137 | ifp->if_reset = enpreset; |
138 | ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX; | |
6013a59e SL |
139 | if_attach(ifp); |
140 | } | |
141 | ||
6013a59e | 142 | /* |
bc2cef1e | 143 | * Reset of interface after "system" reset. |
6013a59e | 144 | */ |
bc2cef1e SL |
145 | enpreset(unit, vban) |
146 | int unit, vban; | |
6013a59e | 147 | { |
bc2cef1e | 148 | register struct vba_device *ui; |
6013a59e | 149 | |
bc2cef1e SL |
150 | if (unit >= NENP || (ui = enpinfo[unit]) == 0 || ui->ui_alive == 0 || |
151 | ui->ui_vbanum != vban) | |
152 | return; | |
153 | printf(" enp%d", unit); | |
6013a59e SL |
154 | enpinit(unit); |
155 | } | |
156 | ||
157 | /* | |
bc2cef1e | 158 | * Initialization of interface; clear recorded pending operations. |
6013a59e | 159 | */ |
bc2cef1e SL |
160 | enpinit(unit) |
161 | int unit; | |
6013a59e | 162 | { |
bc2cef1e SL |
163 | struct enp_softc *es = &enp_softc[unit]; |
164 | register struct vba_device *ui = enpinfo[unit]; | |
165 | struct enpdevice *addr; | |
166 | register struct ifnet *ifp = &es->es_if; | |
167 | int s; | |
6013a59e | 168 | |
bc2cef1e SL |
169 | if (ifp->if_addrlist == (struct ifaddr *)0) |
170 | return; | |
171 | if ((ifp->if_flags & IFF_RUNNING) == 0) { | |
172 | addr = (struct enpdevice *)ui->ui_addr; | |
173 | s = splimp(); | |
174 | RESET_ENP(addr); | |
175 | DELAY(200000); | |
bc2cef1e SL |
176 | es->es_if.if_flags |= IFF_RUNNING; |
177 | splx(s); | |
178 | } | |
6013a59e SL |
179 | } |
180 | ||
6013a59e SL |
181 | /* |
182 | * Ethernet interface interrupt. | |
183 | */ | |
bc2cef1e SL |
184 | enpintr(unit) |
185 | int unit; | |
6013a59e | 186 | { |
bc2cef1e SL |
187 | register struct enpdevice *addr; |
188 | register BCB *bcbp; | |
6013a59e | 189 | |
bc2cef1e | 190 | addr = (struct enpdevice *)enpinfo[unit]->ui_addr; |
9d61b7ff | 191 | #if ENP == 30 |
bc2cef1e | 192 | if (!IS_ENP_INTR(addr)) |
6013a59e | 193 | return; |
bc2cef1e | 194 | ACK_ENP_INTR(addr); |
9d61b7ff SL |
195 | #endif |
196 | while ((bcbp = (BCB *)ringget((RING *)&addr->enp_tohost )) != 0) { | |
979ea28d | 197 | enpread(&enp_softc[unit], bcbp); |
9d61b7ff | 198 | (void) ringput((RING *)&addr->enp_enpfree, bcbp); |
6013a59e | 199 | } |
6013a59e SL |
200 | } |
201 | ||
202 | /* | |
203 | * Read input packet, examine its packet type, and enqueue it. | |
204 | */ | |
9d61b7ff | 205 | enpread(es, bcbp) |
bc2cef1e SL |
206 | struct enp_softc *es; |
207 | register BCB *bcbp; | |
6013a59e SL |
208 | { |
209 | register struct ether_header *enp; | |
210 | struct mbuf *m; | |
9d61b7ff | 211 | int s, len, off, resid; |
6013a59e SL |
212 | |
213 | es->es_if.if_ipackets++; | |
6013a59e SL |
214 | /* |
215 | * Get input data length. | |
216 | * Get pointer to ethernet header (in input buffer). | |
217 | * Deal with trailer protocol: if type is PUP trailer | |
218 | * get true type from first 16-bit word past data. | |
219 | * Remember that type was trailer by setting off. | |
220 | */ | |
bc2cef1e | 221 | len = bcbp->b_msglen - sizeof (struct ether_header); |
7779e59b | 222 | enp = (struct ether_header *)ENPGETLONG(&bcbp->b_addr); |
bc2cef1e SL |
223 | #define enpdataaddr(enp, off, type) \ |
224 | ((type)(((caddr_t)(((char *)enp)+sizeof (struct ether_header))+(off)))) | |
225 | enp->ether_type = ntohs((u_short)enp->ether_type); | |
226 | if (enp->ether_type >= ETHERTYPE_TRAIL && | |
227 | enp->ether_type < ETHERTYPE_TRAIL+ETHERTYPE_NTRAILER) { | |
228 | off = (enp->ether_type - ETHERTYPE_TRAIL) * 512; | |
229 | if (off >= ETHERMTU) | |
979ea28d | 230 | return; |
bc2cef1e SL |
231 | enp->ether_type = ntohs(*enpdataaddr(enp, off, u_short *)); |
232 | resid = ntohs(*(enpdataaddr(enp, off+2, u_short *))); | |
233 | if (off + resid > len) | |
979ea28d | 234 | return; |
6013a59e | 235 | len = off + resid; |
bc2cef1e | 236 | } else |
6013a59e | 237 | off = 0; |
bc2cef1e | 238 | if (len == 0) |
979ea28d | 239 | return; |
6013a59e | 240 | |
6013a59e SL |
241 | /* |
242 | * Pull packet off interface. Off is nonzero if packet | |
243 | * has trailing header; enpget will then force this header | |
979ea28d | 244 | * information to be at the front. |
6013a59e | 245 | */ |
7779e59b | 246 | m = enpget((u_char *)enp, len, off, &es->es_if); |
bc2cef1e | 247 | if (m == 0) |
979ea28d | 248 | return; |
385e8f24 | 249 | ether_input(&es->es_if, enp, m); |
6013a59e SL |
250 | } |
251 | ||
979ea28d | 252 | enpstart(ifp) |
bc2cef1e | 253 | struct ifnet *ifp; |
6013a59e | 254 | { |
6013a59e | 255 | |
979ea28d | 256 | if (enpput(ifp)) |
003ca8a0 MK |
257 | return (ENOBUFS); |
258 | else | |
259 | return (0); | |
6013a59e SL |
260 | } |
261 | ||
262 | /* | |
bc2cef1e | 263 | * Routine to copy from mbuf chain to transmitter buffer on the VERSAbus. |
6013a59e | 264 | */ |
979ea28d MK |
265 | enpput(ifp) |
266 | struct ifnet *ifp; | |
6013a59e SL |
267 | { |
268 | register BCB *bcbp; | |
bc2cef1e | 269 | register struct enpdevice *addr; |
6013a59e SL |
270 | register struct mbuf *mp; |
271 | register u_char *bp; | |
bc2cef1e | 272 | register u_int len; |
003ca8a0 | 273 | int unit = ifp->if_unit, ret = 1; |
979ea28d | 274 | struct mbuf *m; |
6013a59e | 275 | |
bc2cef1e | 276 | addr = (struct enpdevice *)enpinfo[unit]->ui_addr; |
979ea28d | 277 | again: |
003ca8a0 MK |
278 | if (ringempty((RING *)&addr->enp_hostfree)) { |
279 | /* ifp->if_flags |= IFF_OACTIVE; */ | |
280 | return (ret); | |
281 | } | |
979ea28d | 282 | IF_DEQUEUE(&ifp->if_snd, m); |
003ca8a0 MK |
283 | if (m == 0) { |
284 | ifp->if_flags &= ~IFF_OACTIVE; | |
285 | return (0); | |
286 | } | |
9d61b7ff | 287 | bcbp = (BCB *)ringget((RING *)&addr->enp_hostfree); |
6013a59e | 288 | bcbp->b_len = 0; |
7779e59b | 289 | bp = (u_char *)ENPGETLONG(&bcbp->b_addr); |
bc2cef1e | 290 | for (mp = m; mp; mp = mp->m_next) { |
6013a59e | 291 | len = mp->m_len; |
bc2cef1e | 292 | if (len == 0) |
6013a59e | 293 | continue; |
003ca8a0 | 294 | enpcopy(mtod(mp, u_char *), bp, len); |
6013a59e SL |
295 | bp += len; |
296 | bcbp->b_len += len; | |
297 | } | |
003ca8a0 | 298 | bcbp->b_len = max(ETHERMIN+sizeof (struct ether_header), bcbp->b_len); |
6013a59e | 299 | bcbp->b_reserved = 0; |
9d61b7ff | 300 | if (ringput((RING *)&addr->enp_toenp, bcbp) == 1) |
bc2cef1e | 301 | INTR_ENP(addr); |
6013a59e | 302 | m_freem(m); |
003ca8a0 | 303 | ret = 0; |
979ea28d | 304 | goto again; |
6013a59e SL |
305 | } |
306 | ||
307 | /* | |
bc2cef1e | 308 | * Routine to copy from VERSAbus memory into mbufs. |
6013a59e SL |
309 | * |
310 | * Warning: This makes the fairly safe assumption that | |
311 | * mbufs have even lengths. | |
312 | */ | |
313 | struct mbuf * | |
979ea28d | 314 | enpget(rxbuf, totlen, off, ifp) |
bc2cef1e | 315 | u_char *rxbuf; |
979ea28d | 316 | int totlen, off; |
bc2cef1e | 317 | struct ifnet *ifp; |
6013a59e | 318 | { |
003ca8a0 | 319 | register u_char *cp; |
6013a59e | 320 | register struct mbuf *m; |
bc2cef1e | 321 | struct mbuf *top = 0, **mp = ⊤ |
979ea28d MK |
322 | int len; |
323 | u_char *packet_end; | |
324 | ||
325 | rxbuf += sizeof (struct ether_header); | |
326 | cp = rxbuf; | |
327 | packet_end = cp + totlen; | |
328 | if (off) { | |
329 | off += 2 * sizeof(u_short); | |
330 | totlen -= 2 *sizeof(u_short); | |
331 | cp = rxbuf + off; | |
332 | } | |
333 | ||
334 | MGETHDR(m, M_DONTWAIT, MT_DATA); | |
335 | if (m == 0) | |
336 | return (0); | |
337 | m->m_pkthdr.rcvif = ifp; | |
338 | m->m_pkthdr.len = totlen; | |
339 | m->m_len = MHLEN; | |
6013a59e | 340 | |
bc2cef1e | 341 | while (totlen > 0) { |
979ea28d MK |
342 | if (top) { |
343 | MGET(m, M_DONTWAIT, MT_DATA); | |
344 | if (m == 0) { | |
345 | m_freem(top); | |
346 | return (0); | |
347 | } | |
348 | m->m_len = MLEN; | |
349 | } | |
350 | len = min(totlen, (packet_end - cp)); | |
351 | if (len >= MINCLSIZE) { | |
352 | MCLGET(m, M_DONTWAIT); | |
353 | if (m->m_flags & M_EXT) | |
354 | m->m_len = len = min(len, MCLBYTES); | |
bc2cef1e | 355 | else |
979ea28d | 356 | len = m->m_len; |
bc2cef1e | 357 | } else { |
bc2cef1e | 358 | /* |
979ea28d | 359 | * Place initial small packet/header at end of mbuf. |
bc2cef1e | 360 | */ |
979ea28d | 361 | if (len < m->m_len) { |
003ca8a0 | 362 | if (top == 0 && len + max_linkhdr <= m->m_len) |
979ea28d MK |
363 | m->m_data += max_linkhdr; |
364 | m->m_len = len; | |
365 | } else | |
366 | len = m->m_len; | |
bc2cef1e | 367 | } |
003ca8a0 | 368 | enpcopy(cp, mtod(m, u_char *), (u_int)len); |
6013a59e SL |
369 | *mp = m; |
370 | mp = &m->m_next; | |
979ea28d MK |
371 | totlen -= len; |
372 | cp += len; | |
373 | if (cp == packet_end) | |
374 | cp = rxbuf; | |
6013a59e SL |
375 | } |
376 | return (top); | |
6013a59e SL |
377 | } |
378 | ||
bc2cef1e | 379 | enpcopy(from, to, cnt) |
9d61b7ff SL |
380 | register u_char *from, *to; |
381 | register u_int cnt; | |
bc2cef1e SL |
382 | { |
383 | register c; | |
384 | register short *f, *t; | |
385 | ||
386 | if (((int)from&01) && ((int)to&01)) { | |
387 | /* source & dest at odd addresses */ | |
388 | *to++ = *from++; | |
389 | --cnt; | |
390 | } | |
391 | if (cnt > 1 && (((int)to&01) == 0) && (((int)from&01) == 0)) { | |
392 | t = (short *)to; | |
393 | f = (short *)from; | |
394 | for (c = cnt>>1; c; --c) /* even address copy */ | |
395 | *t++ = *f++; | |
396 | cnt &= 1; | |
397 | if (cnt) { /* odd len */ | |
9d61b7ff SL |
398 | from = (u_char *)f; |
399 | to = (u_char *)t; | |
bc2cef1e SL |
400 | *to = *from; |
401 | } | |
402 | } | |
9d61b7ff | 403 | while ((int)cnt-- > 0) /* one of the address(es) must be odd */ |
bc2cef1e SL |
404 | *to++ = *from++; |
405 | } | |
406 | ||
6013a59e SL |
407 | /* |
408 | * Process an ioctl request. | |
6013a59e | 409 | */ |
6013a59e | 410 | enpioctl(ifp, cmd, data) |
bc2cef1e SL |
411 | register struct ifnet *ifp; |
412 | int cmd; | |
413 | caddr_t data; | |
6013a59e | 414 | { |
bc2cef1e SL |
415 | register struct ifaddr *ifa = (struct ifaddr *)data; |
416 | struct enpdevice *addr; | |
417 | int s = splimp(), error = 0; | |
6013a59e SL |
418 | |
419 | switch (cmd) { | |
420 | ||
421 | case SIOCSIFADDR: | |
bc2cef1e | 422 | ifp->if_flags |= IFF_UP; |
385e8f24 | 423 | switch (ifa->ifa_addr->sa_family) { |
bc2cef1e SL |
424 | #ifdef INET |
425 | case AF_INET: | |
426 | enpinit(ifp->if_unit); | |
427 | ((struct arpcom *)ifp)->ac_ipaddr = | |
428 | IA_SIN(ifa)->sin_addr; | |
429 | arpwhohas((struct arpcom *)ifp, &IA_SIN(ifa)->sin_addr); | |
430 | break; | |
431 | #endif | |
432 | #ifdef NS | |
433 | case AF_NS: { | |
434 | struct ns_addr *ina = &IA_SNS(ifa)->sns_addr; | |
435 | struct enp_softc *es = &enp_softc[ifp->if_unit]; | |
436 | ||
437 | if (!ns_nullhost(*ina)) { | |
438 | ifp->if_flags &= ~IFF_RUNNING; | |
439 | addr = (struct enpdevice *) | |
440 | enpinfo[ifp->if_unit]->ui_addr; | |
441 | enpsetaddr(ifp->if_unit, addr, | |
442 | ina->x_host.c_host); | |
443 | } else | |
7779e59b | 444 | ina->x_host = *(union ns_host *)es->es_addr; |
bc2cef1e | 445 | enpinit(ifp->if_unit); |
6013a59e SL |
446 | break; |
447 | } | |
bc2cef1e SL |
448 | #endif |
449 | default: | |
450 | enpinit(ifp->if_unit); | |
451 | break; | |
6013a59e | 452 | } |
6013a59e SL |
453 | break; |
454 | ||
bc2cef1e SL |
455 | case SIOCSIFFLAGS: |
456 | if ((ifp->if_flags&IFF_UP) == 0 && ifp->if_flags&IFF_RUNNING) { | |
457 | enpinit(ifp->if_unit); /* reset board */ | |
458 | ifp->if_flags &= ~IFF_RUNNING; | |
459 | } else if (ifp->if_flags&IFF_UP && | |
460 | (ifp->if_flags&IFF_RUNNING) == 0) | |
461 | enpinit(ifp->if_unit); | |
6013a59e SL |
462 | break; |
463 | ||
464 | default: | |
465 | error = EINVAL; | |
466 | } | |
bc2cef1e SL |
467 | splx(s); |
468 | return (error); | |
6013a59e SL |
469 | } |
470 | ||
bc2cef1e SL |
471 | enpsetaddr(unit, addr, enaddr) |
472 | int unit; | |
473 | struct enpdevice *addr; | |
474 | u_char *enaddr; | |
6013a59e | 475 | { |
7779e59b SL |
476 | |
477 | enpcopy(enaddr, addr->enp_addr.e_baseaddr.ea_addr, | |
478 | sizeof (struct ether_addr)); | |
bc2cef1e | 479 | enpinit(unit); |
7779e59b SL |
480 | enpgetaddr(unit, addr); |
481 | } | |
482 | ||
483 | enpgetaddr(unit, addr) | |
484 | int unit; | |
485 | struct enpdevice *addr; | |
486 | { | |
487 | struct enp_softc *es = &enp_softc[unit]; | |
488 | ||
489 | enpcopy(addr->enp_addr.e_baseaddr.ea_addr, es->es_addr, | |
490 | sizeof (struct ether_addr)); | |
491 | printf("enp%d: hardware address %s\n", | |
492 | unit, ether_sprintf(es->es_addr)); | |
6013a59e SL |
493 | } |
494 | ||
495 | /* | |
bc2cef1e | 496 | * Routines to synchronize enp and host. |
6013a59e | 497 | */ |
9d61b7ff | 498 | #ifdef notdef |
6013a59e | 499 | static |
bc2cef1e SL |
500 | ringinit(rp, size) |
501 | register RING *rp; | |
6013a59e | 502 | { |
6013a59e SL |
503 | |
504 | rp->r_rdidx = rp->r_wrtidx = 0; | |
505 | rp->r_size = size; | |
506 | } | |
507 | ||
508 | static | |
9d61b7ff | 509 | ringfull(rp) |
bc2cef1e | 510 | register RING *rp; |
6013a59e | 511 | { |
9d61b7ff | 512 | register short idx; |
bc2cef1e | 513 | |
9d61b7ff SL |
514 | idx = (rp->r_wrtidx + 1) & (rp->r_size-1); |
515 | return (idx == rp->r_rdidx); | |
6013a59e SL |
516 | } |
517 | ||
518 | static | |
9d61b7ff | 519 | fir(rp) |
bc2cef1e | 520 | register RING *rp; |
6013a59e | 521 | { |
6013a59e | 522 | |
9d61b7ff SL |
523 | return (rp->r_rdidx != rp->r_wrtidx ? rp->r_slot[rp->r_rdidx] : 0); |
524 | } | |
525 | #endif | |
526 | ||
527 | static | |
528 | ringempty(rp) | |
529 | register RING *rp; | |
530 | { | |
531 | ||
532 | return (rp->r_rdidx == rp->r_wrtidx); | |
6013a59e SL |
533 | } |
534 | ||
535 | static | |
bc2cef1e SL |
536 | ringput(rp, v) |
537 | register RING *rp; | |
9d61b7ff | 538 | BCB *v; |
6013a59e SL |
539 | { |
540 | register int idx; | |
6013a59e SL |
541 | |
542 | idx = (rp->r_wrtidx + 1) & (rp->r_size-1); | |
bc2cef1e | 543 | if (idx != rp->r_rdidx) { |
7779e59b | 544 | ENPSETLONG(&rp->r_slot[rp->r_wrtidx], v); |
6013a59e | 545 | rp->r_wrtidx = idx; |
bc2cef1e | 546 | if ((idx -= rp->r_rdidx) < 0) |
6013a59e | 547 | idx += rp->r_size; |
bc2cef1e | 548 | return (idx); /* num ring entries */ |
6013a59e | 549 | } |
bc2cef1e | 550 | return (0); |
6013a59e SL |
551 | } |
552 | ||
553 | static | |
bc2cef1e SL |
554 | ringget(rp) |
555 | register RING *rp; | |
6013a59e SL |
556 | { |
557 | register int i = 0; | |
bc2cef1e SL |
558 | |
559 | if (rp->r_rdidx != rp->r_wrtidx) { | |
7779e59b | 560 | i = ENPGETLONG(&rp->r_slot[rp->r_rdidx]); |
6013a59e SL |
561 | rp->r_rdidx = (++rp->r_rdidx) & (rp->r_size-1); |
562 | } | |
bc2cef1e | 563 | return (i); |
6013a59e SL |
564 | } |
565 | ||
bc2cef1e SL |
566 | /* |
567 | * ENP Ram device. | |
568 | */ | |
569 | enpr_open(dev) | |
570 | dev_t dev; | |
6013a59e | 571 | { |
bc2cef1e SL |
572 | register int unit = ENPUNIT(dev); |
573 | struct vba_device *ui; | |
574 | struct enpdevice *addr; | |
6013a59e | 575 | |
bc2cef1e SL |
576 | if (unit >= NENP || (ui = enpinfo[unit]) == 0 || ui->ui_alive == 0 || |
577 | (addr = (struct enpdevice *)ui->ui_addr) == 0) | |
578 | return (ENODEV); | |
579 | if (addr->enp_state != S_ENPRESET) | |
580 | return (EACCES); /* enp is not in reset state, don't open */ | |
581 | return (0); | |
6013a59e SL |
582 | } |
583 | ||
9d61b7ff | 584 | /*ARGSUSED*/ |
bc2cef1e SL |
585 | enpr_close(dev) |
586 | dev_t dev; | |
6013a59e | 587 | { |
6013a59e | 588 | |
bc2cef1e | 589 | return (0); |
6013a59e SL |
590 | } |
591 | ||
bc2cef1e SL |
592 | enpr_read(dev, uio) |
593 | dev_t dev; | |
594 | register struct uio *uio; | |
6013a59e | 595 | { |
bc2cef1e SL |
596 | register struct iovec *iov; |
597 | struct enpdevice *addr; | |
6013a59e | 598 | |
bc2cef1e SL |
599 | if (uio->uio_offset > RAM_SIZE) |
600 | return (ENODEV); | |
9d61b7ff | 601 | iov = uio->uio_iov; |
bc2cef1e SL |
602 | if (uio->uio_offset + iov->iov_len > RAM_SIZE) |
603 | iov->iov_len = RAM_SIZE - uio->uio_offset; | |
604 | addr = (struct enpdevice *)enpinfo[ENPUNIT(dev)]->ui_addr; | |
7779e59b SL |
605 | if (useracc(iov->iov_base, (unsigned)iov->iov_len, 0) == 0) |
606 | return (EFAULT); | |
9d61b7ff SL |
607 | enpcopy((u_char *)&addr->enp_ram[uio->uio_offset], |
608 | (u_char *)iov->iov_base, (u_int)iov->iov_len); | |
bc2cef1e SL |
609 | uio->uio_resid -= iov->iov_len; |
610 | iov->iov_len = 0; | |
611 | return (0); | |
6013a59e SL |
612 | } |
613 | ||
bc2cef1e SL |
614 | enpr_write(dev, uio) |
615 | dev_t dev; | |
616 | register struct uio *uio; | |
617 | { | |
618 | register struct enpdevice *addr; | |
619 | register struct iovec *iov; | |
6013a59e | 620 | |
bc2cef1e SL |
621 | addr = (struct enpdevice *)enpinfo[ENPUNIT(dev)]->ui_addr; |
622 | iov = uio->uio_iov; | |
623 | if (uio->uio_offset > RAM_SIZE) | |
624 | return (ENODEV); | |
625 | if (uio->uio_offset + iov->iov_len > RAM_SIZE) | |
626 | iov->iov_len = RAM_SIZE - uio->uio_offset; | |
7779e59b SL |
627 | if (useracc(iov->iov_base, (unsigned)iov->iov_len, 1) == 0) |
628 | return (EFAULT); | |
9d61b7ff SL |
629 | enpcopy((u_char *)iov->iov_base, |
630 | (u_char *)&addr->enp_ram[uio->uio_offset], (u_int)iov->iov_len); | |
bc2cef1e | 631 | uio->uio_resid -= iov->iov_len; |
9bd54d0d | 632 | uio->uio_offset += iov->iov_len; |
bc2cef1e SL |
633 | iov->iov_len = 0; |
634 | return (0); | |
635 | } | |
636 | ||
9d61b7ff | 637 | /*ARGSUSED*/ |
bc2cef1e SL |
638 | enpr_ioctl(dev, cmd, data) |
639 | dev_t dev; | |
640 | caddr_t data; | |
6013a59e | 641 | { |
bc2cef1e | 642 | register unit = ENPUNIT(dev); |
7779e59b | 643 | struct enpdevice *addr; |
6013a59e | 644 | |
bc2cef1e SL |
645 | addr = (struct enpdevice *)enpinfo[unit]->ui_addr; |
646 | switch(cmd) { | |
647 | ||
648 | case ENPIOGO: | |
7779e59b | 649 | ENPSETLONG(&addr->enp_base, addr); |
bc2cef1e SL |
650 | addr->enp_intrvec = enp_softc[unit].es_ivec; |
651 | ENP_GO(addr, ENPSTART); | |
652 | DELAY(200000); | |
653 | enpinit(unit); | |
7779e59b SL |
654 | /* |
655 | * Fetch Ethernet address after link level | |
656 | * is booted (firmware copies manufacturer's | |
657 | * address from on-board ROM). | |
658 | */ | |
659 | enpgetaddr(unit, addr); | |
660 | addr->enp_state = S_ENPRUN; | |
bc2cef1e SL |
661 | break; |
662 | ||
663 | case ENPIORESET: | |
664 | RESET_ENP(addr); | |
7779e59b | 665 | addr->enp_state = S_ENPRESET; |
bc2cef1e SL |
666 | DELAY(100000); |
667 | break; | |
7779e59b SL |
668 | default: |
669 | return (EINVAL); | |
6013a59e | 670 | } |
bc2cef1e | 671 | return (0); |
6013a59e SL |
672 | } |
673 | #endif |