projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 60f56dfc KM |
1 | /* |
| 2 | * Copyright (c) 1982, 1990 The Regents of the University of California. | |
| 3 | * All rights reserved. | |
| 4 | * | |
| 5 | * %sccs.include.redist.c% | |
| 6 | * | |
| 1d48484d | 7 | * @(#)if_le.c 7.3 (Berkeley) %G% |
| 60f56dfc KM |
8 | */ |
| 9 | ||
| 10 | #include "le.h" | |
| 11 | #if NLE > 0 | |
| 12 | ||
| 1d48484d SM |
13 | #include "bpfilter.h" |
| 14 | ||
| 60f56dfc KM |
15 | /* |
| 16 | * AMD 7990 LANCE | |
| 17 | * | |
| 18 | * This driver will generate and accept tailer encapsulated packets even | |
| 19 | * though it buys us nothing. The motivation was to avoid incompatibilities | |
| 20 | * with VAXen, SUNs, and others that handle and benefit from them. | |
| 21 | * This reasoning is dubious. | |
| 22 | */ | |
| b28b3a13 KB |
23 | #include "sys/param.h" |
| 24 | #include "sys/systm.h" | |
| 25 | #include "sys/mbuf.h" | |
| 26 | #include "sys/buf.h" | |
| 27 | #include "sys/protosw.h" | |
| 28 | #include "sys/socket.h" | |
| 29 | #include "sys/syslog.h" | |
| 30 | #include "sys/ioctl.h" | |
| 31 | #include "sys/errno.h" | |
| 60f56dfc | 32 | |
| b28b3a13 KB |
33 | #include "net/if.h" |
| 34 | #include "net/netisr.h" | |
| 35 | #include "net/route.h" | |
| 60f56dfc KM |
36 | |
| 37 | #ifdef INET | |
| b28b3a13 KB |
38 | #include "netinet/in.h" |
| 39 | #include "netinet/in_systm.h" | |
| 40 | #include "netinet/in_var.h" | |
| 41 | #include "netinet/ip.h" | |
| 42 | #include "netinet/if_ether.h" | |
| 60f56dfc KM |
43 | #endif |
| 44 | ||
| 45 | #ifdef NS | |
| b28b3a13 KB |
46 | #include "netns/ns.h" |
| 47 | #include "netns/ns_if.h" | |
| 60f56dfc KM |
48 | #endif |
| 49 | ||
| 50 | #ifdef RMP | |
| b28b3a13 KB |
51 | #include "netrmp/rmp.h" |
| 52 | #include "netrmp/rmp_var.h" | |
| 60f56dfc KM |
53 | #endif |
| 54 | ||
| b28b3a13 KB |
55 | #include "../include/cpu.h" |
| 56 | #include "../hp300/isr.h" | |
| 57 | #include "../include/mtpr.h" | |
| 60f56dfc KM |
58 | #include "device.h" |
| 59 | #include "if_lereg.h" | |
| 60 | ||
| 1d48484d SM |
61 | #if NBPFILTER > 0 |
| 62 | #include "../net/bpf.h" | |
| 63 | #include "../net/bpfdesc.h" | |
| 64 | #endif | |
| 65 | ||
| 60f56dfc KM |
66 | /* offsets for: ID, REGS, MEM, NVRAM */ |
| 67 | int lestd[] = { 0, 0x4000, 0x8000, 0xC008 }; | |
| 68 | ||
| 69 | int leattach(); | |
| 70 | struct driver ledriver = { | |
| 71 | leattach, "le", | |
| 72 | }; | |
| 73 | ||
| 74 | struct isr le_isr[NLE]; | |
| 75 | int ledebug = 0; /* console error messages */ | |
| 76 | ||
| 77 | int leintr(), leinit(), leioctl(), lestart(), ether_output(); | |
| 78 | struct mbuf *leget(); | |
| 79 | extern struct ifnet loif; | |
| 80 | ||
| 81 | /* | |
| 82 | * Ethernet software status per interface. | |
| 83 | * | |
| 84 | * Each interface is referenced by a network interface structure, | |
| 85 | * le_if, which the routing code uses to locate the interface. | |
| 86 | * This structure contains the output queue for the interface, its address, ... | |
| 87 | */ | |
| 88 | struct le_softc { | |
| 89 | struct arpcom sc_ac; /* common Ethernet structures */ | |
| 90 | #define sc_if sc_ac.ac_if /* network-visible interface */ | |
| 91 | #define sc_addr sc_ac.ac_enaddr /* hardware Ethernet address */ | |
| 92 | struct lereg0 *sc_r0; /* DIO registers */ | |
| 93 | struct lereg1 *sc_r1; /* LANCE registers */ | |
| 94 | struct lereg2 *sc_r2; /* dual-port RAM */ | |
| 95 | int sc_rmd; /* predicted next rmd to process */ | |
| 96 | int sc_runt; | |
| 97 | int sc_jab; | |
| 98 | int sc_merr; | |
| 99 | int sc_babl; | |
| 100 | int sc_cerr; | |
| 101 | int sc_miss; | |
| 102 | int sc_xint; | |
| 103 | int sc_xown; | |
| 104 | int sc_uflo; | |
| 105 | int sc_rxlen; | |
| 106 | int sc_rxoff; | |
| 107 | int sc_txoff; | |
| 108 | int sc_busy; | |
| 1d48484d SM |
109 | #if NBPFILTER > 0 |
| 110 | caddr_t sc_bpf; | |
| 111 | #endif | |
| 60f56dfc KM |
112 | } le_softc[NLE]; |
| 113 | ||
| 114 | /* access LANCE registers */ | |
| 115 | #define LERDWR(cntl, src, dst) \ | |
| 116 | do { \ | |
| 117 | (dst) = (src); \ | |
| 118 | } while (((cntl)->ler0_status & LE_ACK) == 0); | |
| 119 | ||
| 120 | /* | |
| 121 | * Interface exists: make available by filling in network interface | |
| 122 | * record. System will initialize the interface when it is ready | |
| 123 | * to accept packets. | |
| 124 | */ | |
| 125 | leattach(hd) | |
| 126 | struct hp_device *hd; | |
| 127 | { | |
| 128 | register struct lereg0 *ler0; | |
| 129 | register struct lereg2 *ler2; | |
| 130 | struct lereg2 *lemem = 0; | |
| 131 | struct le_softc *le = &le_softc[hd->hp_unit]; | |
| 132 | struct ifnet *ifp = &le->sc_if; | |
| 133 | char *cp; | |
| 134 | int i; | |
| 135 | ||
| 136 | ler0 = le->sc_r0 = (struct lereg0 *)(lestd[0] + (int)hd->hp_addr); | |
| 137 | le->sc_r1 = (struct lereg1 *)(lestd[1] + (int)hd->hp_addr); | |
| 138 | ler2 = le->sc_r2 = (struct lereg2 *)(lestd[2] + (int)hd->hp_addr); | |
| 139 | if (ler0->ler0_id != LEID) | |
| 140 | return(0); | |
| 141 | le_isr[hd->hp_unit].isr_intr = leintr; | |
| 142 | hd->hp_ipl = le_isr[hd->hp_unit].isr_ipl = LE_IPL(ler0->ler0_status); | |
| 143 | le_isr[hd->hp_unit].isr_arg = hd->hp_unit; | |
| 144 | ler0->ler0_id = 0xFF; | |
| 145 | DELAY(100); | |
| 146 | ||
| 147 | /* | |
| 148 | * Read the ethernet address off the board, one nibble at a time. | |
| 149 | */ | |
| 150 | cp = (char *)(lestd[3] + (int)hd->hp_addr); | |
| 151 | for (i = 0; i < sizeof(le->sc_addr); i++) { | |
| 152 | le->sc_addr[i] = (*++cp & 0xF) << 4; | |
| 153 | cp++; | |
| 154 | le->sc_addr[i] |= *++cp & 0xF; | |
| 155 | cp++; | |
| 156 | } | |
| 157 | printf("le%d: hardware address %s\n", hd->hp_unit, | |
| 158 | ether_sprintf(le->sc_addr)); | |
| 159 | ||
| 160 | /* | |
| 161 | * Setup for transmit/receive | |
| 162 | */ | |
| 163 | ler2->ler2_mode = LE_MODE; | |
| 164 | ler2->ler2_padr[0] = le->sc_addr[1]; | |
| 165 | ler2->ler2_padr[1] = le->sc_addr[0]; | |
| 166 | ler2->ler2_padr[2] = le->sc_addr[3]; | |
| 167 | ler2->ler2_padr[3] = le->sc_addr[2]; | |
| 168 | ler2->ler2_padr[4] = le->sc_addr[5]; | |
| 169 | ler2->ler2_padr[5] = le->sc_addr[4]; | |
| 170 | #ifdef RMP | |
| 171 | /* | |
| 172 | * Set up logical addr filter to accept multicast 9:0:9:0:0:4 | |
| 173 | * This should be an ioctl() to the driver. (XXX) | |
| 174 | */ | |
| 175 | ler2->ler2_ladrf0 = 0x00100000; | |
| 176 | ler2->ler2_ladrf1 = 0x0; | |
| 177 | #else | |
| 178 | ler2->ler2_ladrf0 = 0; | |
| 179 | ler2->ler2_ladrf1 = 0; | |
| 180 | #endif | |
| 181 | ler2->ler2_rlen = LE_RLEN; | |
| 182 | ler2->ler2_rdra = (int)lemem->ler2_rmd; | |
| 183 | ler2->ler2_tlen = LE_TLEN; | |
| 184 | ler2->ler2_tdra = (int)lemem->ler2_tmd; | |
| 185 | isrlink(&le_isr[hd->hp_unit]); | |
| 186 | ler0->ler0_status = LE_IE; | |
| 187 | ||
| 188 | ifp->if_unit = hd->hp_unit; | |
| 189 | ifp->if_name = "le"; | |
| 190 | ifp->if_mtu = ETHERMTU; | |
| 191 | ifp->if_init = leinit; | |
| 192 | ifp->if_ioctl = leioctl; | |
| 193 | ifp->if_output = ether_output; | |
| 194 | ifp->if_start = lestart; | |
| 195 | ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX; | |
| 1d48484d SM |
196 | #if NBPFILTER > 0 |
| 197 | { | |
| 198 | static struct bpf_devp dev = | |
| 199 | { DLT_EN10MB, sizeof(struct ether_header) }; | |
| 200 | ||
| 201 | bpfattach(&le->sc_bpf, ifp, &dev); | |
| 202 | } | |
| 203 | #endif | |
| 60f56dfc KM |
204 | if_attach(ifp); |
| 205 | return (1); | |
| 206 | } | |
| 207 | ||
| 208 | ledrinit(ler2) | |
| 209 | register struct lereg2 *ler2; | |
| 210 | { | |
| 211 | register struct lereg2 *lemem = 0; | |
| 212 | register int i; | |
| 213 | ||
| 214 | for (i = 0; i < LERBUF; i++) { | |
| 215 | ler2->ler2_rmd[i].rmd0 = (int)lemem->ler2_rbuf[i]; | |
| 216 | ler2->ler2_rmd[i].rmd1 = LE_OWN; | |
| 217 | ler2->ler2_rmd[i].rmd2 = -LEMTU; | |
| 218 | ler2->ler2_rmd[i].rmd3 = 0; | |
| 219 | } | |
| 220 | for (i = 0; i < LETBUF; i++) { | |
| 221 | ler2->ler2_tmd[i].tmd0 = (int)lemem->ler2_tbuf[i]; | |
| 222 | ler2->ler2_tmd[i].tmd1 = 0; | |
| 223 | ler2->ler2_tmd[i].tmd2 = 0; | |
| 224 | ler2->ler2_tmd[i].tmd3 = 0; | |
| 225 | } | |
| 226 | } | |
| 227 | ||
| 228 | lereset(unit) | |
| 229 | register int unit; | |
| 230 | { | |
| 231 | register struct le_softc *le = &le_softc[unit]; | |
| 232 | register struct lereg0 *ler0 = le->sc_r0; | |
| 233 | register struct lereg1 *ler1 = le->sc_r1; | |
| 234 | register struct lereg2 *lemem = 0; | |
| 235 | register int timo = 100000; | |
| 236 | register int stat; | |
| 237 | ||
| 238 | #ifdef lint | |
| 239 | stat = unit; | |
| 1d48484d SM |
240 | #endif |
| 241 | #if NBPFILTER > 0 | |
| 242 | if (le->sc_if.if_flags & IFF_PROMISC) | |
| 243 | /* set the promiscuous bit */ | |
| 244 | le->sc_r2->ler2_mode = LE_MODE|0x8000; | |
| 245 | else | |
| 246 | le->sc_r2->ler2_mode = LE_MODE; | |
| 60f56dfc KM |
247 | #endif |
| 248 | LERDWR(ler0, LE_CSR0, ler1->ler1_rap); | |
| 249 | LERDWR(ler0, LE_STOP, ler1->ler1_rdp); | |
| 250 | ledrinit(le->sc_r2); | |
| 251 | le->sc_rmd = 0; | |
| 252 | LERDWR(ler0, LE_CSR1, ler1->ler1_rap); | |
| 253 | LERDWR(ler0, (int)&lemem->ler2_mode, ler1->ler1_rdp); | |
| 254 | LERDWR(ler0, LE_CSR2, ler1->ler1_rap); | |
| 255 | LERDWR(ler0, 0, ler1->ler1_rdp); | |
| 256 | LERDWR(ler0, LE_CSR0, ler1->ler1_rap); | |
| 257 | LERDWR(ler0, LE_INIT, ler1->ler1_rdp); | |
| 258 | do { | |
| 259 | if (--timo == 0) { | |
| 260 | printf("le%d: init timeout, stat = 0x%x\n", | |
| 261 | unit, stat); | |
| 262 | break; | |
| 263 | } | |
| 264 | LERDWR(ler0, ler1->ler1_rdp, stat); | |
| 265 | } while ((stat & LE_IDON) == 0); | |
| 266 | LERDWR(ler0, LE_STOP, ler1->ler1_rdp); | |
| 267 | LERDWR(ler0, LE_CSR3, ler1->ler1_rap); | |
| 268 | LERDWR(ler0, LE_BSWP, ler1->ler1_rdp); | |
| 269 | LERDWR(ler0, LE_CSR0, ler1->ler1_rap); | |
| 270 | LERDWR(ler0, LE_STRT | LE_INEA, ler1->ler1_rdp); | |
| 271 | le->sc_if.if_flags &= ~IFF_OACTIVE; | |
| 272 | } | |
| 273 | ||
| 274 | /* | |
| 275 | * Initialization of interface | |
| 276 | */ | |
| 277 | leinit(unit) | |
| 278 | int unit; | |
| 279 | { | |
| 280 | struct le_softc *le = &le_softc[unit]; | |
| 281 | register struct ifnet *ifp = &le->sc_if; | |
| 282 | int s; | |
| 283 | ||
| 284 | /* not yet, if address still unknown */ | |
| 285 | if (ifp->if_addrlist == (struct ifaddr *)0) | |
| 286 | return; | |
| 287 | if ((ifp->if_flags & IFF_RUNNING) == 0) { | |
| 288 | s = splimp(); | |
| 289 | ifp->if_flags |= IFF_RUNNING; | |
| 290 | lereset(unit); | |
| 291 | (void) lestart(ifp); | |
| 292 | splx(s); | |
| 293 | } | |
| 294 | } | |
| 295 | ||
| 296 | /* | |
| 297 | * Start output on interface. Get another datagram to send | |
| 298 | * off of the interface queue, and copy it to the interface | |
| 299 | * before starting the output. | |
| 300 | */ | |
| 301 | lestart(ifp) | |
| 302 | struct ifnet *ifp; | |
| 303 | { | |
| 304 | register struct le_softc *le = &le_softc[ifp->if_unit]; | |
| 305 | register struct letmd *tmd; | |
| 306 | register struct mbuf *m; | |
| 307 | int len; | |
| 308 | ||
| 309 | if ((le->sc_if.if_flags & IFF_RUNNING) == 0) | |
| 310 | return (0); | |
| 311 | IF_DEQUEUE(&le->sc_if.if_snd, m); | |
| 312 | if (m == 0) | |
| 313 | return (0); | |
| 1d48484d SM |
314 | #if NBPFILTER > 0 |
| 315 | /* | |
| 316 | * If bpf is listening on this interface, let it | |
| 317 | * see the packet before we commit it to the wire. | |
| 318 | */ | |
| 319 | if (le->sc_bpf) | |
| 320 | bpf_tap(le->sc_bpf, le->sc_r2->ler2_tbuf[0], len); | |
| 321 | #endif | |
| 60f56dfc KM |
322 | len = leput(le->sc_r2->ler2_tbuf[0], m); |
| 323 | tmd = le->sc_r2->ler2_tmd; | |
| 324 | tmd->tmd3 = 0; | |
| 325 | tmd->tmd2 = -len; | |
| 326 | tmd->tmd1 = LE_OWN | LE_STP | LE_ENP; | |
| 327 | le->sc_if.if_flags |= IFF_OACTIVE; | |
| 328 | return (0); | |
| 329 | } | |
| 330 | ||
| 331 | leintr(unit) | |
| 332 | register int unit; | |
| 333 | { | |
| 334 | register struct le_softc *le = &le_softc[unit]; | |
| 335 | register struct lereg0 *ler0 = le->sc_r0; | |
| 336 | register struct lereg1 *ler1; | |
| 337 | register int stat; | |
| 338 | ||
| 339 | if ((ler0->ler0_status & LE_IR) == 0) | |
| 340 | return(0); | |
| 341 | if (ler0->ler0_status & LE_JAB) { | |
| 342 | le->sc_jab++; | |
| 343 | lereset(unit); | |
| 344 | return(1); | |
| 345 | } | |
| 346 | ler1 = le->sc_r1; | |
| 347 | LERDWR(ler0, ler1->ler1_rdp, stat); | |
| 348 | if (stat & LE_SERR) { | |
| 349 | leerror(unit, stat); | |
| 350 | if (stat & LE_MERR) { | |
| 351 | le->sc_merr++; | |
| 352 | lereset(unit); | |
| 353 | return(1); | |
| 354 | } | |
| 355 | if (stat & LE_BABL) | |
| 356 | le->sc_babl++; | |
| 357 | if (stat & LE_CERR) | |
| 358 | le->sc_cerr++; | |
| 359 | if (stat & LE_MISS) | |
| 360 | le->sc_miss++; | |
| 361 | LERDWR(ler0, LE_BABL|LE_CERR|LE_MISS|LE_INEA, ler1->ler1_rdp); | |
| 362 | } | |
| 363 | if ((stat & LE_RXON) == 0) { | |
| 364 | le->sc_rxoff++; | |
| 365 | lereset(unit); | |
| 366 | return(1); | |
| 367 | } | |
| 368 | if ((stat & LE_TXON) == 0) { | |
| 369 | le->sc_txoff++; | |
| 370 | lereset(unit); | |
| 371 | return(1); | |
| 372 | } | |
| 373 | if (stat & LE_RINT) { | |
| 374 | /* interrupt is cleared in lerint */ | |
| 375 | lerint(unit); | |
| 376 | } | |
| 377 | if (stat & LE_TINT) { | |
| 378 | LERDWR(ler0, LE_TINT|LE_INEA, ler1->ler1_rdp); | |
| 379 | lexint(unit); | |
| 380 | } | |
| 381 | return(1); | |
| 382 | } | |
| 383 | ||
| 384 | /* | |
| 385 | * Ethernet interface transmitter interrupt. | |
| 386 | * Start another output if more data to send. | |
| 387 | */ | |
| 388 | lexint(unit) | |
| 389 | register int unit; | |
| 390 | { | |
| 391 | register struct le_softc *le = &le_softc[unit]; | |
| 392 | register struct letmd *tmd = le->sc_r2->ler2_tmd; | |
| 393 | ||
| 394 | if ((le->sc_if.if_flags & IFF_OACTIVE) == 0) { | |
| 395 | le->sc_xint++; | |
| 396 | return; | |
| 397 | } | |
| 398 | if (tmd->tmd1 & LE_OWN) { | |
| 399 | le->sc_xown++; | |
| 400 | return; | |
| 401 | } | |
| 402 | if (tmd->tmd1 & LE_ERR) { | |
| 403 | err: | |
| 404 | lexerror(unit); | |
| 405 | le->sc_if.if_oerrors++; | |
| 406 | if (tmd->tmd3 & (LE_TBUFF|LE_UFLO)) { | |
| 407 | le->sc_uflo++; | |
| 408 | lereset(unit); | |
| 409 | } | |
| 410 | else if (tmd->tmd3 & LE_LCOL) | |
| 411 | le->sc_if.if_collisions++; | |
| 412 | else if (tmd->tmd3 & LE_RTRY) | |
| 413 | le->sc_if.if_collisions += 16; | |
| 414 | } | |
| 415 | else if (tmd->tmd3 & LE_TBUFF) | |
| 416 | /* XXX documentation says BUFF not included in ERR */ | |
| 417 | goto err; | |
| 418 | else if (tmd->tmd1 & LE_ONE) | |
| 419 | le->sc_if.if_collisions++; | |
| 420 | else if (tmd->tmd1 & LE_MORE) | |
| 421 | /* what is the real number? */ | |
| 422 | le->sc_if.if_collisions += 2; | |
| 423 | else | |
| 424 | le->sc_if.if_opackets++; | |
| 425 | le->sc_if.if_flags &= ~IFF_OACTIVE; | |
| 426 | (void) lestart(&le->sc_if); | |
| 427 | } | |
| 428 | ||
| 429 | #define LENEXTRMP \ | |
| 430 | if (++bix == LERBUF) bix = 0, rmd = le->sc_r2->ler2_rmd; else ++rmd | |
| 431 | ||
| 432 | /* | |
| 433 | * Ethernet interface receiver interrupt. | |
| 434 | * If input error just drop packet. | |
| 435 | * Decapsulate packet based on type and pass to type specific | |
| 436 | * higher-level input routine. | |
| 437 | */ | |
| 438 | lerint(unit) | |
| 439 | int unit; | |
| 440 | { | |
| 441 | register struct le_softc *le = &le_softc[unit]; | |
| 442 | register int bix = le->sc_rmd; | |
| 443 | register struct lermd *rmd = &le->sc_r2->ler2_rmd[bix]; | |
| 444 | ||
| 445 | /* | |
| 446 | * Out of sync with hardware, should never happen? | |
| 447 | */ | |
| 448 | if (rmd->rmd1 & LE_OWN) { | |
| 449 | LERDWR(le->sc_r0, LE_RINT|LE_INEA, le->sc_r1->ler1_rdp); | |
| 450 | return; | |
| 451 | } | |
| 452 | ||
| 453 | /* | |
| 454 | * Process all buffers with valid data | |
| 455 | */ | |
| 456 | while ((rmd->rmd1 & LE_OWN) == 0) { | |
| 457 | int len = rmd->rmd3; | |
| 458 | ||
| 459 | /* Clear interrupt to avoid race condition */ | |
| 460 | LERDWR(le->sc_r0, LE_RINT|LE_INEA, le->sc_r1->ler1_rdp); | |
| 461 | ||
| 462 | if (rmd->rmd1 & LE_ERR) { | |
| 463 | le->sc_rmd = bix; | |
| 464 | lererror(unit, "bad packet"); | |
| 465 | le->sc_if.if_ierrors++; | |
| 466 | } else if ((rmd->rmd1 & (LE_STP|LE_ENP)) != (LE_STP|LE_ENP)) { | |
| 467 | /* | |
| 468 | * Find the end of the packet so we can see how long | |
| 469 | * it was. We still throw it away. | |
| 470 | */ | |
| 471 | do { | |
| 472 | LERDWR(le->sc_r0, LE_RINT|LE_INEA, | |
| 473 | le->sc_r1->ler1_rdp); | |
| 474 | rmd->rmd3 = 0; | |
| 475 | rmd->rmd1 = LE_OWN; | |
| 476 | LENEXTRMP; | |
| 477 | } while (!(rmd->rmd1 & (LE_OWN|LE_ERR|LE_STP|LE_ENP))); | |
| 478 | le->sc_rmd = bix; | |
| 479 | lererror(unit, "chained buffer"); | |
| 480 | le->sc_rxlen++; | |
| 481 | /* | |
| 482 | * If search terminated without successful completion | |
| 483 | * we reset the hardware (conservative). | |
| 484 | */ | |
| 485 | if ((rmd->rmd1 & (LE_OWN|LE_ERR|LE_STP|LE_ENP)) != | |
| 486 | LE_ENP) { | |
| 487 | lereset(unit); | |
| 488 | return; | |
| 489 | } | |
| 490 | } else | |
| 491 | leread(unit, le->sc_r2->ler2_rbuf[bix], len); | |
| 492 | rmd->rmd3 = 0; | |
| 493 | rmd->rmd1 = LE_OWN; | |
| 494 | LENEXTRMP; | |
| 495 | } | |
| 496 | le->sc_rmd = bix; | |
| 497 | } | |
| 498 | ||
| 499 | leread(unit, buf, len) | |
| 500 | int unit; | |
| 501 | char *buf; | |
| 502 | int len; | |
| 503 | { | |
| 504 | register struct le_softc *le = &le_softc[unit]; | |
| 505 | register struct ether_header *et; | |
| 506 | struct mbuf *m; | |
| 507 | int off, resid; | |
| 508 | ||
| 509 | le->sc_if.if_ipackets++; | |
| 510 | et = (struct ether_header *)buf; | |
| 511 | et->ether_type = ntohs((u_short)et->ether_type); | |
| 512 | /* adjust input length to account for header and CRC */ | |
| 513 | len = len - sizeof(struct ether_header) - 4; | |
| 514 | ||
| 515 | #ifdef RMP | |
| 516 | /* (XXX) | |
| 517 | * | |
| 518 | * If Ethernet Type field is < MaxPacketSize, we probably have | |
| 519 | * a IEEE802 packet here. Make sure that the size is at least | |
| 520 | * that of the HP LLC. Also do sanity checks on length of LLC | |
| 521 | * (old Ethernet Type field) and packet length. | |
| 522 | * | |
| 523 | * Provided the above checks succeed, change `len' to reflect | |
| 524 | * the length of the LLC (i.e. et->ether_type) and change the | |
| 525 | * type field to ETHERTYPE_IEEE so we can switch() on it later. | |
| 526 | * Yes, this is a hack and will eventually be done "right". | |
| 527 | */ | |
| 528 | if (et->ether_type <= IEEE802LEN_MAX && len >= sizeof(struct hp_llc) && | |
| 529 | len >= et->ether_type && len >= IEEE802LEN_MIN) { | |
| 530 | len = et->ether_type; | |
| 531 | et->ether_type = ETHERTYPE_IEEE; /* hack! */ | |
| 532 | } | |
| 533 | #endif | |
| 534 | ||
| 535 | #define ledataaddr(et, off, type) ((type)(((caddr_t)((et)+1)+(off)))) | |
| 536 | if (et->ether_type >= ETHERTYPE_TRAIL && | |
| 537 | et->ether_type < ETHERTYPE_TRAIL+ETHERTYPE_NTRAILER) { | |
| 538 | off = (et->ether_type - ETHERTYPE_TRAIL) * 512; | |
| 539 | if (off >= ETHERMTU) | |
| 540 | return; /* sanity */ | |
| 541 | et->ether_type = ntohs(*ledataaddr(et, off, u_short *)); | |
| 542 | resid = ntohs(*(ledataaddr(et, off+2, u_short *))); | |
| 543 | if (off + resid > len) | |
| 544 | return; /* sanity */ | |
| 545 | len = off + resid; | |
| 546 | } else | |
| 547 | off = 0; | |
| 548 | ||
| 549 | if (len <= 0) { | |
| 550 | if (ledebug) | |
| 551 | log(LOG_WARNING, | |
| 552 | "le%d: ierror(runt packet): from %s: len=%d\n", | |
| 553 | unit, ether_sprintf(et->ether_shost), len); | |
| 554 | le->sc_runt++; | |
| 555 | le->sc_if.if_ierrors++; | |
| 556 | return; | |
| 557 | } | |
| 1d48484d SM |
558 | #if NBPFILTER > 0 |
| 559 | /* | |
| 560 | * Check if there's a bpf filter listening on this interface. | |
| 561 | * If so, hand off the raw packet to bpf, which must deal with | |
| 562 | * trailers in its own way. | |
| 563 | */ | |
| 564 | if (le->sc_bpf) { | |
| 565 | bpf_tap(le->sc_bpf, buf, len + sizeof(struct ether_header)); | |
| 60f56dfc | 566 | |
| 1d48484d SM |
567 | /* |
| 568 | * Note that the interface cannot be in promiscuous mode if | |
| 569 | * there are no bpf listeners. And if we are in promiscuous | |
| 570 | * mode, we have to check if this packet is really ours. | |
| 571 | * | |
| 572 | * XXX This test does not support multicasts. | |
| 573 | */ | |
| 574 | if ((le->sc_if.if_flags & IFF_PROMISC) | |
| 575 | && bcmp(et->ether_dhost, le->sc_addr, | |
| 576 | sizeof(et->ether_dhost)) != 0 | |
| 577 | && bcmp(et->ether_dhost, etherbroadcastaddr, | |
| 578 | sizeof(et->ether_dhost)) != 0) | |
| 579 | return; | |
| 580 | } | |
| 581 | #endif | |
| 60f56dfc KM |
582 | /* |
| 583 | * Pull packet off interface. Off is nonzero if packet | |
| 584 | * has trailing header; leget will then force this header | |
| 585 | * information to be at the front, but we still have to drop | |
| 586 | * the type and length which are at the front of any trailer data. | |
| 587 | */ | |
| 588 | m = leget(buf, len, off, &le->sc_if); | |
| 589 | if (m == 0) | |
| 590 | return; | |
| 591 | #ifdef RMP | |
| 592 | /* | |
| 593 | * (XXX) | |
| 594 | * This needs to be integrated with the ISO stuff in ether_input() | |
| 595 | */ | |
| 596 | if (et->ether_type == ETHERTYPE_IEEE) { | |
| 597 | /* | |
| 598 | * Snag the Logical Link Control header (IEEE 802.2). | |
| 599 | */ | |
| 600 | struct hp_llc *llc = &(mtod(m, struct rmp_packet *)->hp_llc); | |
| 601 | ||
| 602 | /* | |
| 603 | * If the DSAP (and HP's extended DXSAP) indicate this | |
| 604 | * is an RMP packet, hand it to the raw input routine. | |
| 605 | */ | |
| 606 | if (llc->dsap == IEEE_DSAP_HP && llc->dxsap == HPEXT_DXSAP) { | |
| 607 | static struct sockproto rmp_sp = {AF_RMP,RMPPROTO_BOOT}; | |
| 608 | static struct sockaddr rmp_src = {AF_RMP}; | |
| 609 | static struct sockaddr rmp_dst = {AF_RMP}; | |
| 610 | ||
| 611 | bcopy(et->ether_shost, rmp_src.sa_data, | |
| 612 | sizeof(et->ether_shost)); | |
| 613 | bcopy(et->ether_dhost, rmp_dst.sa_data, | |
| 614 | sizeof(et->ether_dhost)); | |
| 615 | ||
| 616 | raw_input(m, &rmp_sp, &rmp_src, &rmp_dst); | |
| 617 | return; | |
| 618 | } | |
| 619 | } | |
| 620 | #endif | |
| 621 | ether_input(&le->sc_if, et, m); | |
| 622 | } | |
| 623 | ||
| 624 | /* | |
| 625 | * Routine to copy from mbuf chain to transmit | |
| 626 | * buffer in board local memory. | |
| 627 | */ | |
| 628 | leput(lebuf, m) | |
| 629 | register char *lebuf; | |
| 630 | register struct mbuf *m; | |
| 631 | { | |
| 632 | register struct mbuf *mp; | |
| 633 | register int len, tlen = 0; | |
| 634 | ||
| 635 | for (mp = m; mp; mp = mp->m_next) { | |
| 636 | len = mp->m_len; | |
| 637 | if (len == 0) | |
| 638 | continue; | |
| 639 | tlen += len; | |
| 640 | bcopy(mtod(mp, char *), lebuf, len); | |
| 641 | lebuf += len; | |
| 642 | } | |
| 643 | m_freem(m); | |
| 644 | if (tlen < LEMINSIZE) { | |
| 645 | bzero(lebuf, LEMINSIZE - tlen); | |
| 646 | tlen = LEMINSIZE; | |
| 647 | } | |
| 648 | return(tlen); | |
| 649 | } | |
| 650 | ||
| 651 | /* | |
| 652 | * Routine to copy from board local memory into mbufs. | |
| 653 | */ | |
| 654 | struct mbuf * | |
| 655 | leget(lebuf, totlen, off0, ifp) | |
| 656 | char *lebuf; | |
| 657 | int totlen, off0; | |
| 658 | struct ifnet *ifp; | |
| 659 | { | |
| 660 | register struct mbuf *m; | |
| 661 | struct mbuf *top = 0, **mp = ⊤ | |
| 662 | register int off = off0, len; | |
| 663 | register char *cp; | |
| 664 | char *epkt; | |
| 665 | ||
| 666 | lebuf += sizeof (struct ether_header); | |
| 667 | cp = lebuf; | |
| 668 | epkt = cp + totlen; | |
| 669 | if (off) { | |
| 670 | cp += off + 2 * sizeof(u_short); | |
| 671 | totlen -= 2 * sizeof(u_short); | |
| 672 | } | |
| 673 | ||
| 674 | MGETHDR(m, M_DONTWAIT, MT_DATA); | |
| 675 | if (m == 0) | |
| 676 | return (0); | |
| 677 | m->m_pkthdr.rcvif = ifp; | |
| 678 | m->m_pkthdr.len = totlen; | |
| 679 | m->m_len = MHLEN; | |
| 680 | ||
| 681 | while (totlen > 0) { | |
| 682 | if (top) { | |
| 683 | MGET(m, M_DONTWAIT, MT_DATA); | |
| 684 | if (m == 0) { | |
| 685 | m_freem(top); | |
| 686 | return (0); | |
| 687 | } | |
| 688 | m->m_len = MLEN; | |
| 689 | } | |
| 690 | len = min(totlen, epkt - cp); | |
| 691 | if (len >= MINCLSIZE) { | |
| 692 | MCLGET(m, M_DONTWAIT); | |
| 693 | if (m->m_flags & M_EXT) | |
| 694 | m->m_len = len = min(len, MCLBYTES); | |
| 695 | else | |
| 696 | len = m->m_len; | |
| 697 | } else { | |
| 698 | /* | |
| 699 | * Place initial small packet/header at end of mbuf. | |
| 700 | */ | |
| 701 | if (len < m->m_len) { | |
| 702 | if (top == 0 && len + max_linkhdr <= m->m_len) | |
| 703 | m->m_data += max_linkhdr; | |
| 704 | m->m_len = len; | |
| 705 | } else | |
| 706 | len = m->m_len; | |
| 707 | } | |
| 708 | bcopy(cp, mtod(m, caddr_t), (unsigned)len); | |
| 709 | cp += len; | |
| 710 | *mp = m; | |
| 711 | mp = &m->m_next; | |
| 712 | totlen -= len; | |
| 713 | if (cp == epkt) | |
| 714 | cp = lebuf; | |
| 715 | } | |
| 716 | return (top); | |
| 717 | } | |
| 718 | ||
| 719 | /* | |
| 720 | * Process an ioctl request. | |
| 721 | */ | |
| 722 | leioctl(ifp, cmd, data) | |
| 723 | register struct ifnet *ifp; | |
| 724 | int cmd; | |
| 725 | caddr_t data; | |
| 726 | { | |
| 727 | register struct ifaddr *ifa = (struct ifaddr *)data; | |
| 728 | struct le_softc *le = &le_softc[ifp->if_unit]; | |
| 729 | struct lereg1 *ler1 = le->sc_r1; | |
| 730 | int s = splimp(), error = 0; | |
| 731 | ||
| 732 | switch (cmd) { | |
| 733 | ||
| 734 | case SIOCSIFADDR: | |
| 735 | ifp->if_flags |= IFF_UP; | |
| 736 | switch (ifa->ifa_addr->sa_family) { | |
| 737 | #ifdef INET | |
| 738 | case AF_INET: | |
| 739 | leinit(ifp->if_unit); /* before arpwhohas */ | |
| 740 | ((struct arpcom *)ifp)->ac_ipaddr = | |
| 741 | IA_SIN(ifa)->sin_addr; | |
| 742 | arpwhohas((struct arpcom *)ifp, &IA_SIN(ifa)->sin_addr); | |
| 743 | break; | |
| 744 | #endif | |
| 745 | #ifdef NS | |
| 746 | case AF_NS: | |
| 747 | { | |
| 748 | register struct ns_addr *ina = &(IA_SNS(ifa)->sns_addr); | |
| 749 | ||
| 750 | if (ns_nullhost(*ina)) | |
| 751 | ina->x_host = *(union ns_host *)(le->sc_addr); | |
| 752 | else { | |
| 753 | /* | |
| 754 | * The manual says we can't change the address | |
| 755 | * while the receiver is armed, | |
| 756 | * so reset everything | |
| 757 | */ | |
| 758 | ifp->if_flags &= ~IFF_RUNNING; | |
| 759 | bcopy((caddr_t)ina->x_host.c_host, | |
| 760 | (caddr_t)le->sc_addr, sizeof(le->sc_addr)); | |
| 761 | } | |
| 762 | leinit(ifp->if_unit); /* does le_setaddr() */ | |
| 763 | break; | |
| 764 | } | |
| 765 | #endif | |
| 766 | default: | |
| 767 | leinit(ifp->if_unit); | |
| 768 | break; | |
| 769 | } | |
| 770 | break; | |
| 771 | ||
| 772 | case SIOCSIFFLAGS: | |
| 773 | if ((ifp->if_flags & IFF_UP) == 0 && | |
| 774 | ifp->if_flags & IFF_RUNNING) { | |
| 775 | LERDWR(le->sc_r0, LE_STOP, ler1->ler1_rdp); | |
| 776 | ifp->if_flags &= ~IFF_RUNNING; | |
| 777 | } else if (ifp->if_flags & IFF_UP && | |
| 778 | (ifp->if_flags & IFF_RUNNING) == 0) | |
| 779 | leinit(ifp->if_unit); | |
| 780 | break; | |
| 781 | ||
| 782 | default: | |
| 783 | error = EINVAL; | |
| 784 | } | |
| 785 | splx(s); | |
| 786 | return (error); | |
| 787 | } | |
| 788 | ||
| 789 | leerror(unit, stat) | |
| 790 | int unit; | |
| 791 | int stat; | |
| 792 | { | |
| 793 | if (!ledebug) | |
| 794 | return; | |
| 795 | ||
| 796 | /* | |
| 797 | * Not all transceivers implement heartbeat | |
| 798 | * so we only log CERR once. | |
| 799 | */ | |
| 800 | if ((stat & LE_CERR) && le_softc[unit].sc_cerr) | |
| 801 | return; | |
| 802 | log(LOG_WARNING, | |
| 803 | "le%d: error: stat=%b\n", unit, | |
| 804 | stat, | |
| 805 | "\20\20ERR\17BABL\16CERR\15MISS\14MERR\13RINT\12TINT\11IDON\10INTR\07INEA\06RXON\05TXON\04TDMD\03STOP\02STRT\01INIT"); | |
| 806 | } | |
| 807 | ||
| 808 | lererror(unit, msg) | |
| 809 | int unit; | |
| 810 | char *msg; | |
| 811 | { | |
| 812 | register struct le_softc *le = &le_softc[unit]; | |
| 813 | register struct lermd *rmd; | |
| 814 | int len; | |
| 815 | ||
| 816 | if (!ledebug) | |
| 817 | return; | |
| 818 | ||
| 819 | rmd = &le->sc_r2->ler2_rmd[le->sc_rmd]; | |
| 820 | len = rmd->rmd3; | |
| 821 | log(LOG_WARNING, | |
| 822 | "le%d: ierror(%s): from %s: buf=%d, len=%d, rmd1=%b\n", | |
| 823 | unit, msg, | |
| 824 | len > 11 ? ether_sprintf(&le->sc_r2->ler2_rbuf[le->sc_rmd][6]) : "unknown", | |
| 825 | le->sc_rmd, len, | |
| 826 | rmd->rmd1, | |
| 827 | "\20\20OWN\17ERR\16FRAM\15OFLO\14CRC\13RBUF\12STP\11ENP"); | |
| 828 | } | |
| 829 | ||
| 830 | lexerror(unit) | |
| 831 | int unit; | |
| 832 | { | |
| 833 | register struct le_softc *le = &le_softc[unit]; | |
| 834 | register struct letmd *tmd; | |
| 835 | int len; | |
| 836 | ||
| 837 | if (!ledebug) | |
| 838 | return; | |
| 839 | ||
| 840 | tmd = le->sc_r2->ler2_tmd; | |
| 841 | len = -tmd->tmd2; | |
| 842 | log(LOG_WARNING, | |
| 843 | "le%d: oerror: to %s: buf=%d, len=%d, tmd1=%b, tmd3=%b\n", | |
| 844 | unit, | |
| 845 | len > 5 ? ether_sprintf(&le->sc_r2->ler2_tbuf[0][0]) : "unknown", | |
| 846 | 0, len, | |
| 847 | tmd->tmd1, | |
| 848 | "\20\20OWN\17ERR\16RES\15MORE\14ONE\13DEF\12STP\11ENP", | |
| 849 | tmd->tmd3, | |
| 850 | "\20\20BUFF\17UFLO\16RES\15LCOL\14LCAR\13RTRY"); | |
| 851 | } | |
| 852 | #endif |