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1.1 ! root 1: /* ! 2: * Copyright (c) 1982, 1990 The Regents of the University of California. ! 3: * All rights reserved. ! 4: * ! 5: * Redistribution and use in source and binary forms, with or without ! 6: * modification, are permitted provided that the following conditions ! 7: * are met: ! 8: * 1. Redistributions of source code must retain the above copyright ! 9: * notice, this list of conditions and the following disclaimer. ! 10: * 2. Redistributions in binary form must reproduce the above copyright ! 11: * notice, this list of conditions and the following disclaimer in the ! 12: * documentation and/or other materials provided with the distribution. ! 13: * 3. All advertising materials mentioning features or use of this software ! 14: * must display the following acknowledgement: ! 15: * This product includes software developed by the University of ! 16: * California, Berkeley and its contributors. ! 17: * 4. Neither the name of the University nor the names of its contributors ! 18: * may be used to endorse or promote products derived from this software ! 19: * without specific prior written permission. ! 20: * ! 21: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ! 22: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE ! 23: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ! 24: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE ! 25: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL ! 26: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS ! 27: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) ! 28: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT ! 29: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY ! 30: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF ! 31: * SUCH DAMAGE. ! 32: * ! 33: * @(#)if_le.c 7.6 (Berkeley) 5/8/91 ! 34: */ ! 35: ! 36: #include "le.h" ! 37: #if NLE > 0 ! 38: ! 39: #include "bpfilter.h" ! 40: ! 41: /* ! 42: * AMD 7990 LANCE ! 43: * ! 44: * This driver will generate and accept tailer encapsulated packets even ! 45: * though it buys us nothing. The motivation was to avoid incompatibilities ! 46: * with VAXen, SUNs, and others that handle and benefit from them. ! 47: * This reasoning is dubious. ! 48: */ ! 49: #include "sys/param.h" ! 50: #include "sys/systm.h" ! 51: #include "sys/mbuf.h" ! 52: #include "sys/buf.h" ! 53: #include "sys/protosw.h" ! 54: #include "sys/socket.h" ! 55: #include "sys/syslog.h" ! 56: #include "sys/ioctl.h" ! 57: #include "sys/errno.h" ! 58: ! 59: #include "net/if.h" ! 60: #include "net/netisr.h" ! 61: #include "net/route.h" ! 62: ! 63: #ifdef INET ! 64: #include "netinet/in.h" ! 65: #include "netinet/in_systm.h" ! 66: #include "netinet/in_var.h" ! 67: #include "netinet/ip.h" ! 68: #include "netinet/if_ether.h" ! 69: #endif ! 70: ! 71: #ifdef NS ! 72: #include "netns/ns.h" ! 73: #include "netns/ns_if.h" ! 74: #endif ! 75: ! 76: #ifdef RMP ! 77: #include "netrmp/rmp.h" ! 78: #include "netrmp/rmp_var.h" ! 79: #endif ! 80: ! 81: #include "../include/cpu.h" ! 82: #include "../hp300/isr.h" ! 83: #include "../include/mtpr.h" ! 84: #include "device.h" ! 85: #include "if_lereg.h" ! 86: ! 87: #if NBPFILTER > 0 ! 88: #include "../net/bpf.h" ! 89: #include "../net/bpfdesc.h" ! 90: #endif ! 91: ! 92: /* offsets for: ID, REGS, MEM, NVRAM */ ! 93: int lestd[] = { 0, 0x4000, 0x8000, 0xC008 }; ! 94: ! 95: int leattach(); ! 96: struct driver ledriver = { ! 97: leattach, "le", ! 98: }; ! 99: ! 100: struct isr le_isr[NLE]; ! 101: int ledebug = 0; /* console error messages */ ! 102: ! 103: int leintr(), leinit(), leioctl(), lestart(), ether_output(); ! 104: struct mbuf *leget(); ! 105: extern struct ifnet loif; ! 106: ! 107: /* ! 108: * Ethernet software status per interface. ! 109: * ! 110: * Each interface is referenced by a network interface structure, ! 111: * le_if, which the routing code uses to locate the interface. ! 112: * This structure contains the output queue for the interface, its address, ... ! 113: */ ! 114: struct le_softc { ! 115: struct arpcom sc_ac; /* common Ethernet structures */ ! 116: #define sc_if sc_ac.ac_if /* network-visible interface */ ! 117: #define sc_addr sc_ac.ac_enaddr /* hardware Ethernet address */ ! 118: struct lereg0 *sc_r0; /* DIO registers */ ! 119: struct lereg1 *sc_r1; /* LANCE registers */ ! 120: struct lereg2 *sc_r2; /* dual-port RAM */ ! 121: int sc_rmd; /* predicted next rmd to process */ ! 122: int sc_runt; ! 123: int sc_jab; ! 124: int sc_merr; ! 125: int sc_babl; ! 126: int sc_cerr; ! 127: int sc_miss; ! 128: int sc_xint; ! 129: int sc_xown; ! 130: int sc_uflo; ! 131: int sc_rxlen; ! 132: int sc_rxoff; ! 133: int sc_txoff; ! 134: int sc_busy; ! 135: short sc_iflags; ! 136: #if NBPFILTER > 0 ! 137: caddr_t sc_bpf; ! 138: #endif ! 139: } le_softc[NLE]; ! 140: ! 141: /* access LANCE registers */ ! 142: #define LERDWR(cntl, src, dst) \ ! 143: do { \ ! 144: (dst) = (src); \ ! 145: } while (((cntl)->ler0_status & LE_ACK) == 0); ! 146: ! 147: /* ! 148: * Interface exists: make available by filling in network interface ! 149: * record. System will initialize the interface when it is ready ! 150: * to accept packets. ! 151: */ ! 152: leattach(hd) ! 153: struct hp_device *hd; ! 154: { ! 155: register struct lereg0 *ler0; ! 156: register struct lereg2 *ler2; ! 157: struct lereg2 *lemem = 0; ! 158: struct le_softc *le = &le_softc[hd->hp_unit]; ! 159: struct ifnet *ifp = &le->sc_if; ! 160: char *cp; ! 161: int i; ! 162: ! 163: ler0 = le->sc_r0 = (struct lereg0 *)(lestd[0] + (int)hd->hp_addr); ! 164: le->sc_r1 = (struct lereg1 *)(lestd[1] + (int)hd->hp_addr); ! 165: ler2 = le->sc_r2 = (struct lereg2 *)(lestd[2] + (int)hd->hp_addr); ! 166: if (ler0->ler0_id != LEID) ! 167: return(0); ! 168: le_isr[hd->hp_unit].isr_intr = leintr; ! 169: hd->hp_ipl = le_isr[hd->hp_unit].isr_ipl = LE_IPL(ler0->ler0_status); ! 170: le_isr[hd->hp_unit].isr_arg = hd->hp_unit; ! 171: ler0->ler0_id = 0xFF; ! 172: DELAY(100); ! 173: ! 174: /* ! 175: * Read the ethernet address off the board, one nibble at a time. ! 176: */ ! 177: cp = (char *)(lestd[3] + (int)hd->hp_addr); ! 178: for (i = 0; i < sizeof(le->sc_addr); i++) { ! 179: le->sc_addr[i] = (*++cp & 0xF) << 4; ! 180: cp++; ! 181: le->sc_addr[i] |= *++cp & 0xF; ! 182: cp++; ! 183: } ! 184: printf("le%d: hardware address %s\n", hd->hp_unit, ! 185: ether_sprintf(le->sc_addr)); ! 186: ! 187: /* ! 188: * Setup for transmit/receive ! 189: */ ! 190: ler2->ler2_mode = LE_MODE; ! 191: ler2->ler2_padr[0] = le->sc_addr[1]; ! 192: ler2->ler2_padr[1] = le->sc_addr[0]; ! 193: ler2->ler2_padr[2] = le->sc_addr[3]; ! 194: ler2->ler2_padr[3] = le->sc_addr[2]; ! 195: ler2->ler2_padr[4] = le->sc_addr[5]; ! 196: ler2->ler2_padr[5] = le->sc_addr[4]; ! 197: #ifdef RMP ! 198: /* ! 199: * Set up logical addr filter to accept multicast 9:0:9:0:0:4 ! 200: * This should be an ioctl() to the driver. (XXX) ! 201: */ ! 202: ler2->ler2_ladrf0 = 0x00100000; ! 203: ler2->ler2_ladrf1 = 0x0; ! 204: #else ! 205: ler2->ler2_ladrf0 = 0; ! 206: ler2->ler2_ladrf1 = 0; ! 207: #endif ! 208: ler2->ler2_rlen = LE_RLEN; ! 209: ler2->ler2_rdra = (int)lemem->ler2_rmd; ! 210: ler2->ler2_tlen = LE_TLEN; ! 211: ler2->ler2_tdra = (int)lemem->ler2_tmd; ! 212: isrlink(&le_isr[hd->hp_unit]); ! 213: ler0->ler0_status = LE_IE; ! 214: ! 215: ifp->if_unit = hd->hp_unit; ! 216: ifp->if_name = "le"; ! 217: ifp->if_mtu = ETHERMTU; ! 218: ifp->if_init = leinit; ! 219: ifp->if_ioctl = leioctl; ! 220: ifp->if_output = ether_output; ! 221: ifp->if_start = lestart; ! 222: ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX; ! 223: #if NBPFILTER > 0 ! 224: bpfattach(&le->sc_bpf, ifp, DLT_EN10MB, sizeof(struct ether_header)); ! 225: #endif ! 226: if_attach(ifp); ! 227: return (1); ! 228: } ! 229: ! 230: ledrinit(ler2) ! 231: register struct lereg2 *ler2; ! 232: { ! 233: register struct lereg2 *lemem = 0; ! 234: register int i; ! 235: ! 236: for (i = 0; i < LERBUF; i++) { ! 237: ler2->ler2_rmd[i].rmd0 = (int)lemem->ler2_rbuf[i]; ! 238: ler2->ler2_rmd[i].rmd1 = LE_OWN; ! 239: ler2->ler2_rmd[i].rmd2 = -LEMTU; ! 240: ler2->ler2_rmd[i].rmd3 = 0; ! 241: } ! 242: for (i = 0; i < LETBUF; i++) { ! 243: ler2->ler2_tmd[i].tmd0 = (int)lemem->ler2_tbuf[i]; ! 244: ler2->ler2_tmd[i].tmd1 = 0; ! 245: ler2->ler2_tmd[i].tmd2 = 0; ! 246: ler2->ler2_tmd[i].tmd3 = 0; ! 247: } ! 248: } ! 249: ! 250: lereset(unit) ! 251: register int unit; ! 252: { ! 253: register struct le_softc *le = &le_softc[unit]; ! 254: register struct lereg0 *ler0 = le->sc_r0; ! 255: register struct lereg1 *ler1 = le->sc_r1; ! 256: register struct lereg2 *lemem = 0; ! 257: register int timo = 100000; ! 258: register int stat; ! 259: ! 260: #ifdef lint ! 261: stat = unit; ! 262: #endif ! 263: #if NBPFILTER > 0 ! 264: if (le->sc_if.if_flags & IFF_PROMISC) ! 265: /* set the promiscuous bit */ ! 266: le->sc_r2->ler2_mode = LE_MODE|0x8000; ! 267: else ! 268: le->sc_r2->ler2_mode = LE_MODE; ! 269: #endif ! 270: LERDWR(ler0, LE_CSR0, ler1->ler1_rap); ! 271: LERDWR(ler0, LE_STOP, ler1->ler1_rdp); ! 272: ledrinit(le->sc_r2); ! 273: le->sc_rmd = 0; ! 274: LERDWR(ler0, LE_CSR1, ler1->ler1_rap); ! 275: LERDWR(ler0, (int)&lemem->ler2_mode, ler1->ler1_rdp); ! 276: LERDWR(ler0, LE_CSR2, ler1->ler1_rap); ! 277: LERDWR(ler0, 0, ler1->ler1_rdp); ! 278: LERDWR(ler0, LE_CSR0, ler1->ler1_rap); ! 279: LERDWR(ler0, LE_INIT, ler1->ler1_rdp); ! 280: do { ! 281: if (--timo == 0) { ! 282: printf("le%d: init timeout, stat = 0x%x\n", ! 283: unit, stat); ! 284: break; ! 285: } ! 286: LERDWR(ler0, ler1->ler1_rdp, stat); ! 287: } while ((stat & LE_IDON) == 0); ! 288: LERDWR(ler0, LE_STOP, ler1->ler1_rdp); ! 289: LERDWR(ler0, LE_CSR3, ler1->ler1_rap); ! 290: LERDWR(ler0, LE_BSWP, ler1->ler1_rdp); ! 291: LERDWR(ler0, LE_CSR0, ler1->ler1_rap); ! 292: LERDWR(ler0, LE_STRT | LE_INEA, ler1->ler1_rdp); ! 293: le->sc_if.if_flags &= ~IFF_OACTIVE; ! 294: } ! 295: ! 296: /* ! 297: * Initialization of interface ! 298: */ ! 299: leinit(unit) ! 300: int unit; ! 301: { ! 302: struct le_softc *le = &le_softc[unit]; ! 303: register struct ifnet *ifp = &le->sc_if; ! 304: int s; ! 305: ! 306: /* not yet, if address still unknown */ ! 307: if (ifp->if_addrlist == (struct ifaddr *)0) ! 308: return; ! 309: if ((ifp->if_flags & IFF_RUNNING) == 0) { ! 310: s = splimp(); ! 311: ifp->if_flags |= IFF_RUNNING; ! 312: lereset(unit); ! 313: (void) lestart(ifp); ! 314: splx(s); ! 315: } ! 316: } ! 317: ! 318: /* ! 319: * Start output on interface. Get another datagram to send ! 320: * off of the interface queue, and copy it to the interface ! 321: * before starting the output. ! 322: */ ! 323: lestart(ifp) ! 324: struct ifnet *ifp; ! 325: { ! 326: register struct le_softc *le = &le_softc[ifp->if_unit]; ! 327: register struct letmd *tmd; ! 328: register struct mbuf *m; ! 329: int len; ! 330: ! 331: if ((le->sc_if.if_flags & IFF_RUNNING) == 0) ! 332: return (0); ! 333: IF_DEQUEUE(&le->sc_if.if_snd, m); ! 334: if (m == 0) ! 335: return (0); ! 336: len = leput(le->sc_r2->ler2_tbuf[0], m); ! 337: #if NBPFILTER > 0 ! 338: /* ! 339: * If bpf is listening on this interface, let it ! 340: * see the packet before we commit it to the wire. ! 341: */ ! 342: if (le->sc_bpf) ! 343: bpf_tap(le->sc_bpf, le->sc_r2->ler2_tbuf[0], len); ! 344: #endif ! 345: tmd = le->sc_r2->ler2_tmd; ! 346: tmd->tmd3 = 0; ! 347: tmd->tmd2 = -len; ! 348: tmd->tmd1 = LE_OWN | LE_STP | LE_ENP; ! 349: le->sc_if.if_flags |= IFF_OACTIVE; ! 350: return (0); ! 351: } ! 352: ! 353: leintr(unit) ! 354: register int unit; ! 355: { ! 356: register struct le_softc *le = &le_softc[unit]; ! 357: register struct lereg0 *ler0 = le->sc_r0; ! 358: register struct lereg1 *ler1; ! 359: register int stat; ! 360: ! 361: if ((ler0->ler0_status & LE_IR) == 0) ! 362: return(0); ! 363: if (ler0->ler0_status & LE_JAB) { ! 364: le->sc_jab++; ! 365: lereset(unit); ! 366: return(1); ! 367: } ! 368: ler1 = le->sc_r1; ! 369: LERDWR(ler0, ler1->ler1_rdp, stat); ! 370: if (stat & LE_SERR) { ! 371: leerror(unit, stat); ! 372: if (stat & LE_MERR) { ! 373: le->sc_merr++; ! 374: lereset(unit); ! 375: return(1); ! 376: } ! 377: if (stat & LE_BABL) ! 378: le->sc_babl++; ! 379: if (stat & LE_CERR) ! 380: le->sc_cerr++; ! 381: if (stat & LE_MISS) ! 382: le->sc_miss++; ! 383: LERDWR(ler0, LE_BABL|LE_CERR|LE_MISS|LE_INEA, ler1->ler1_rdp); ! 384: } ! 385: if ((stat & LE_RXON) == 0) { ! 386: le->sc_rxoff++; ! 387: lereset(unit); ! 388: return(1); ! 389: } ! 390: if ((stat & LE_TXON) == 0) { ! 391: le->sc_txoff++; ! 392: lereset(unit); ! 393: return(1); ! 394: } ! 395: if (stat & LE_RINT) { ! 396: /* interrupt is cleared in lerint */ ! 397: lerint(unit); ! 398: } ! 399: if (stat & LE_TINT) { ! 400: LERDWR(ler0, LE_TINT|LE_INEA, ler1->ler1_rdp); ! 401: lexint(unit); ! 402: } ! 403: return(1); ! 404: } ! 405: ! 406: /* ! 407: * Ethernet interface transmitter interrupt. ! 408: * Start another output if more data to send. ! 409: */ ! 410: lexint(unit) ! 411: register int unit; ! 412: { ! 413: register struct le_softc *le = &le_softc[unit]; ! 414: register struct letmd *tmd = le->sc_r2->ler2_tmd; ! 415: ! 416: if ((le->sc_if.if_flags & IFF_OACTIVE) == 0) { ! 417: le->sc_xint++; ! 418: return; ! 419: } ! 420: if (tmd->tmd1 & LE_OWN) { ! 421: le->sc_xown++; ! 422: return; ! 423: } ! 424: if (tmd->tmd1 & LE_ERR) { ! 425: err: ! 426: lexerror(unit); ! 427: le->sc_if.if_oerrors++; ! 428: if (tmd->tmd3 & (LE_TBUFF|LE_UFLO)) { ! 429: le->sc_uflo++; ! 430: lereset(unit); ! 431: } ! 432: else if (tmd->tmd3 & LE_LCOL) ! 433: le->sc_if.if_collisions++; ! 434: else if (tmd->tmd3 & LE_RTRY) ! 435: le->sc_if.if_collisions += 16; ! 436: } ! 437: else if (tmd->tmd3 & LE_TBUFF) ! 438: /* XXX documentation says BUFF not included in ERR */ ! 439: goto err; ! 440: else if (tmd->tmd1 & LE_ONE) ! 441: le->sc_if.if_collisions++; ! 442: else if (tmd->tmd1 & LE_MORE) ! 443: /* what is the real number? */ ! 444: le->sc_if.if_collisions += 2; ! 445: else ! 446: le->sc_if.if_opackets++; ! 447: le->sc_if.if_flags &= ~IFF_OACTIVE; ! 448: (void) lestart(&le->sc_if); ! 449: } ! 450: ! 451: #define LENEXTRMP \ ! 452: if (++bix == LERBUF) bix = 0, rmd = le->sc_r2->ler2_rmd; else ++rmd ! 453: ! 454: /* ! 455: * Ethernet interface receiver interrupt. ! 456: * If input error just drop packet. ! 457: * Decapsulate packet based on type and pass to type specific ! 458: * higher-level input routine. ! 459: */ ! 460: lerint(unit) ! 461: int unit; ! 462: { ! 463: register struct le_softc *le = &le_softc[unit]; ! 464: register int bix = le->sc_rmd; ! 465: register struct lermd *rmd = &le->sc_r2->ler2_rmd[bix]; ! 466: ! 467: /* ! 468: * Out of sync with hardware, should never happen? ! 469: */ ! 470: if (rmd->rmd1 & LE_OWN) { ! 471: LERDWR(le->sc_r0, LE_RINT|LE_INEA, le->sc_r1->ler1_rdp); ! 472: return; ! 473: } ! 474: ! 475: /* ! 476: * Process all buffers with valid data ! 477: */ ! 478: while ((rmd->rmd1 & LE_OWN) == 0) { ! 479: int len = rmd->rmd3; ! 480: ! 481: /* Clear interrupt to avoid race condition */ ! 482: LERDWR(le->sc_r0, LE_RINT|LE_INEA, le->sc_r1->ler1_rdp); ! 483: ! 484: if (rmd->rmd1 & LE_ERR) { ! 485: le->sc_rmd = bix; ! 486: lererror(unit, "bad packet"); ! 487: le->sc_if.if_ierrors++; ! 488: } else if ((rmd->rmd1 & (LE_STP|LE_ENP)) != (LE_STP|LE_ENP)) { ! 489: /* ! 490: * Find the end of the packet so we can see how long ! 491: * it was. We still throw it away. ! 492: */ ! 493: do { ! 494: LERDWR(le->sc_r0, LE_RINT|LE_INEA, ! 495: le->sc_r1->ler1_rdp); ! 496: rmd->rmd3 = 0; ! 497: rmd->rmd1 = LE_OWN; ! 498: LENEXTRMP; ! 499: } while (!(rmd->rmd1 & (LE_OWN|LE_ERR|LE_STP|LE_ENP))); ! 500: le->sc_rmd = bix; ! 501: lererror(unit, "chained buffer"); ! 502: le->sc_rxlen++; ! 503: /* ! 504: * If search terminated without successful completion ! 505: * we reset the hardware (conservative). ! 506: */ ! 507: if ((rmd->rmd1 & (LE_OWN|LE_ERR|LE_STP|LE_ENP)) != ! 508: LE_ENP) { ! 509: lereset(unit); ! 510: return; ! 511: } ! 512: } else ! 513: leread(unit, le->sc_r2->ler2_rbuf[bix], len); ! 514: rmd->rmd3 = 0; ! 515: rmd->rmd1 = LE_OWN; ! 516: LENEXTRMP; ! 517: } ! 518: le->sc_rmd = bix; ! 519: } ! 520: ! 521: leread(unit, buf, len) ! 522: int unit; ! 523: char *buf; ! 524: int len; ! 525: { ! 526: register struct le_softc *le = &le_softc[unit]; ! 527: register struct ether_header *et; ! 528: struct mbuf *m; ! 529: int off, resid; ! 530: ! 531: le->sc_if.if_ipackets++; ! 532: et = (struct ether_header *)buf; ! 533: et->ether_type = ntohs((u_short)et->ether_type); ! 534: /* adjust input length to account for header and CRC */ ! 535: len = len - sizeof(struct ether_header) - 4; ! 536: ! 537: #ifdef RMP ! 538: /* (XXX) ! 539: * ! 540: * If Ethernet Type field is < MaxPacketSize, we probably have ! 541: * a IEEE802 packet here. Make sure that the size is at least ! 542: * that of the HP LLC. Also do sanity checks on length of LLC ! 543: * (old Ethernet Type field) and packet length. ! 544: * ! 545: * Provided the above checks succeed, change `len' to reflect ! 546: * the length of the LLC (i.e. et->ether_type) and change the ! 547: * type field to ETHERTYPE_IEEE so we can switch() on it later. ! 548: * Yes, this is a hack and will eventually be done "right". ! 549: */ ! 550: if (et->ether_type <= IEEE802LEN_MAX && len >= sizeof(struct hp_llc) && ! 551: len >= et->ether_type && len >= IEEE802LEN_MIN) { ! 552: len = et->ether_type; ! 553: et->ether_type = ETHERTYPE_IEEE; /* hack! */ ! 554: } ! 555: #endif ! 556: ! 557: #define ledataaddr(et, off, type) ((type)(((caddr_t)((et)+1)+(off)))) ! 558: if (et->ether_type >= ETHERTYPE_TRAIL && ! 559: et->ether_type < ETHERTYPE_TRAIL+ETHERTYPE_NTRAILER) { ! 560: off = (et->ether_type - ETHERTYPE_TRAIL) * 512; ! 561: if (off >= ETHERMTU) ! 562: return; /* sanity */ ! 563: et->ether_type = ntohs(*ledataaddr(et, off, u_short *)); ! 564: resid = ntohs(*(ledataaddr(et, off+2, u_short *))); ! 565: if (off + resid > len) ! 566: return; /* sanity */ ! 567: len = off + resid; ! 568: } else ! 569: off = 0; ! 570: ! 571: if (len <= 0) { ! 572: if (ledebug) ! 573: log(LOG_WARNING, ! 574: "le%d: ierror(runt packet): from %s: len=%d\n", ! 575: unit, ether_sprintf(et->ether_shost), len); ! 576: le->sc_runt++; ! 577: le->sc_if.if_ierrors++; ! 578: return; ! 579: } ! 580: #if NBPFILTER > 0 ! 581: /* ! 582: * Check if there's a bpf filter listening on this interface. ! 583: * If so, hand off the raw packet to bpf, which must deal with ! 584: * trailers in its own way. ! 585: */ ! 586: if (le->sc_bpf) { ! 587: bpf_tap(le->sc_bpf, buf, len + sizeof(struct ether_header)); ! 588: ! 589: /* ! 590: * Note that the interface cannot be in promiscuous mode if ! 591: * there are no bpf listeners. And if we are in promiscuous ! 592: * mode, we have to check if this packet is really ours. ! 593: * ! 594: * XXX This test does not support multicasts. ! 595: */ ! 596: if ((le->sc_if.if_flags & IFF_PROMISC) ! 597: && bcmp(et->ether_dhost, le->sc_addr, ! 598: sizeof(et->ether_dhost)) != 0 ! 599: && bcmp(et->ether_dhost, etherbroadcastaddr, ! 600: sizeof(et->ether_dhost)) != 0) ! 601: return; ! 602: } ! 603: #endif ! 604: /* ! 605: * Pull packet off interface. Off is nonzero if packet ! 606: * has trailing header; leget will then force this header ! 607: * information to be at the front, but we still have to drop ! 608: * the type and length which are at the front of any trailer data. ! 609: */ ! 610: m = leget(buf, len, off, &le->sc_if); ! 611: if (m == 0) ! 612: return; ! 613: #ifdef RMP ! 614: /* ! 615: * (XXX) ! 616: * This needs to be integrated with the ISO stuff in ether_input() ! 617: */ ! 618: if (et->ether_type == ETHERTYPE_IEEE) { ! 619: /* ! 620: * Snag the Logical Link Control header (IEEE 802.2). ! 621: */ ! 622: struct hp_llc *llc = &(mtod(m, struct rmp_packet *)->hp_llc); ! 623: ! 624: /* ! 625: * If the DSAP (and HP's extended DXSAP) indicate this ! 626: * is an RMP packet, hand it to the raw input routine. ! 627: */ ! 628: if (llc->dsap == IEEE_DSAP_HP && llc->dxsap == HPEXT_DXSAP) { ! 629: static struct sockproto rmp_sp = {AF_RMP,RMPPROTO_BOOT}; ! 630: static struct sockaddr rmp_src = {AF_RMP}; ! 631: static struct sockaddr rmp_dst = {AF_RMP}; ! 632: ! 633: bcopy(et->ether_shost, rmp_src.sa_data, ! 634: sizeof(et->ether_shost)); ! 635: bcopy(et->ether_dhost, rmp_dst.sa_data, ! 636: sizeof(et->ether_dhost)); ! 637: ! 638: raw_input(m, &rmp_sp, &rmp_src, &rmp_dst); ! 639: return; ! 640: } ! 641: } ! 642: #endif ! 643: ether_input(&le->sc_if, et, m); ! 644: } ! 645: ! 646: /* ! 647: * Routine to copy from mbuf chain to transmit ! 648: * buffer in board local memory. ! 649: */ ! 650: leput(lebuf, m) ! 651: register char *lebuf; ! 652: register struct mbuf *m; ! 653: { ! 654: register struct mbuf *mp; ! 655: register int len, tlen = 0; ! 656: ! 657: for (mp = m; mp; mp = mp->m_next) { ! 658: len = mp->m_len; ! 659: if (len == 0) ! 660: continue; ! 661: tlen += len; ! 662: bcopy(mtod(mp, char *), lebuf, len); ! 663: lebuf += len; ! 664: } ! 665: m_freem(m); ! 666: if (tlen < LEMINSIZE) { ! 667: bzero(lebuf, LEMINSIZE - tlen); ! 668: tlen = LEMINSIZE; ! 669: } ! 670: return(tlen); ! 671: } ! 672: ! 673: /* ! 674: * Routine to copy from board local memory into mbufs. ! 675: */ ! 676: struct mbuf * ! 677: leget(lebuf, totlen, off0, ifp) ! 678: char *lebuf; ! 679: int totlen, off0; ! 680: struct ifnet *ifp; ! 681: { ! 682: register struct mbuf *m; ! 683: struct mbuf *top = 0, **mp = ⊤ ! 684: register int off = off0, len; ! 685: register char *cp; ! 686: char *epkt; ! 687: ! 688: lebuf += sizeof (struct ether_header); ! 689: cp = lebuf; ! 690: epkt = cp + totlen; ! 691: if (off) { ! 692: cp += off + 2 * sizeof(u_short); ! 693: totlen -= 2 * sizeof(u_short); ! 694: } ! 695: ! 696: MGETHDR(m, M_DONTWAIT, MT_DATA); ! 697: if (m == 0) ! 698: return (0); ! 699: m->m_pkthdr.rcvif = ifp; ! 700: m->m_pkthdr.len = totlen; ! 701: m->m_len = MHLEN; ! 702: ! 703: while (totlen > 0) { ! 704: if (top) { ! 705: MGET(m, M_DONTWAIT, MT_DATA); ! 706: if (m == 0) { ! 707: m_freem(top); ! 708: return (0); ! 709: } ! 710: m->m_len = MLEN; ! 711: } ! 712: len = min(totlen, epkt - cp); ! 713: if (len >= MINCLSIZE) { ! 714: MCLGET(m, M_DONTWAIT); ! 715: if (m->m_flags & M_EXT) ! 716: m->m_len = len = min(len, MCLBYTES); ! 717: else ! 718: len = m->m_len; ! 719: } else { ! 720: /* ! 721: * Place initial small packet/header at end of mbuf. ! 722: */ ! 723: if (len < m->m_len) { ! 724: if (top == 0 && len + max_linkhdr <= m->m_len) ! 725: m->m_data += max_linkhdr; ! 726: m->m_len = len; ! 727: } else ! 728: len = m->m_len; ! 729: } ! 730: bcopy(cp, mtod(m, caddr_t), (unsigned)len); ! 731: cp += len; ! 732: *mp = m; ! 733: mp = &m->m_next; ! 734: totlen -= len; ! 735: if (cp == epkt) ! 736: cp = lebuf; ! 737: } ! 738: return (top); ! 739: } ! 740: ! 741: /* ! 742: * Process an ioctl request. ! 743: */ ! 744: leioctl(ifp, cmd, data) ! 745: register struct ifnet *ifp; ! 746: int cmd; ! 747: caddr_t data; ! 748: { ! 749: register struct ifaddr *ifa = (struct ifaddr *)data; ! 750: struct le_softc *le = &le_softc[ifp->if_unit]; ! 751: struct lereg1 *ler1 = le->sc_r1; ! 752: int s = splimp(), error = 0; ! 753: ! 754: switch (cmd) { ! 755: ! 756: case SIOCSIFADDR: ! 757: ifp->if_flags |= IFF_UP; ! 758: switch (ifa->ifa_addr->sa_family) { ! 759: #ifdef INET ! 760: case AF_INET: ! 761: leinit(ifp->if_unit); /* before arpwhohas */ ! 762: ((struct arpcom *)ifp)->ac_ipaddr = ! 763: IA_SIN(ifa)->sin_addr; ! 764: arpwhohas((struct arpcom *)ifp, &IA_SIN(ifa)->sin_addr); ! 765: break; ! 766: #endif ! 767: #ifdef NS ! 768: case AF_NS: ! 769: { ! 770: register struct ns_addr *ina = &(IA_SNS(ifa)->sns_addr); ! 771: ! 772: if (ns_nullhost(*ina)) ! 773: ina->x_host = *(union ns_host *)(le->sc_addr); ! 774: else { ! 775: /* ! 776: * The manual says we can't change the address ! 777: * while the receiver is armed, ! 778: * so reset everything ! 779: */ ! 780: ifp->if_flags &= ~IFF_RUNNING; ! 781: bcopy((caddr_t)ina->x_host.c_host, ! 782: (caddr_t)le->sc_addr, sizeof(le->sc_addr)); ! 783: } ! 784: leinit(ifp->if_unit); /* does le_setaddr() */ ! 785: break; ! 786: } ! 787: #endif ! 788: default: ! 789: leinit(ifp->if_unit); ! 790: break; ! 791: } ! 792: break; ! 793: ! 794: case SIOCSIFFLAGS: ! 795: if ((ifp->if_flags & IFF_UP) == 0 && ! 796: ifp->if_flags & IFF_RUNNING) { ! 797: LERDWR(le->sc_r0, LE_STOP, ler1->ler1_rdp); ! 798: ifp->if_flags &= ~IFF_RUNNING; ! 799: } else if (ifp->if_flags & IFF_UP && ! 800: (ifp->if_flags & IFF_RUNNING) == 0) ! 801: leinit(ifp->if_unit); ! 802: /* ! 803: * If the state of the promiscuous bit changes, the interface ! 804: * must be reset to effect the change. ! 805: */ ! 806: if (((ifp->if_flags ^ le->sc_iflags) & IFF_PROMISC) && ! 807: (ifp->if_flags & IFF_RUNNING)) { ! 808: le->sc_iflags = ifp->if_flags; ! 809: lereset(ifp->if_unit); ! 810: lestart(ifp); ! 811: } ! 812: break; ! 813: ! 814: default: ! 815: error = EINVAL; ! 816: } ! 817: splx(s); ! 818: return (error); ! 819: } ! 820: ! 821: leerror(unit, stat) ! 822: int unit; ! 823: int stat; ! 824: { ! 825: if (!ledebug) ! 826: return; ! 827: ! 828: /* ! 829: * Not all transceivers implement heartbeat ! 830: * so we only log CERR once. ! 831: */ ! 832: if ((stat & LE_CERR) && le_softc[unit].sc_cerr) ! 833: return; ! 834: log(LOG_WARNING, ! 835: "le%d: error: stat=%b\n", unit, ! 836: stat, ! 837: "\20\20ERR\17BABL\16CERR\15MISS\14MERR\13RINT\12TINT\11IDON\10INTR\07INEA\06RXON\05TXON\04TDMD\03STOP\02STRT\01INIT"); ! 838: } ! 839: ! 840: lererror(unit, msg) ! 841: int unit; ! 842: char *msg; ! 843: { ! 844: register struct le_softc *le = &le_softc[unit]; ! 845: register struct lermd *rmd; ! 846: int len; ! 847: ! 848: if (!ledebug) ! 849: return; ! 850: ! 851: rmd = &le->sc_r2->ler2_rmd[le->sc_rmd]; ! 852: len = rmd->rmd3; ! 853: log(LOG_WARNING, ! 854: "le%d: ierror(%s): from %s: buf=%d, len=%d, rmd1=%b\n", ! 855: unit, msg, ! 856: len > 11 ? ether_sprintf(&le->sc_r2->ler2_rbuf[le->sc_rmd][6]) : "unknown", ! 857: le->sc_rmd, len, ! 858: rmd->rmd1, ! 859: "\20\20OWN\17ERR\16FRAM\15OFLO\14CRC\13RBUF\12STP\11ENP"); ! 860: } ! 861: ! 862: lexerror(unit) ! 863: int unit; ! 864: { ! 865: register struct le_softc *le = &le_softc[unit]; ! 866: register struct letmd *tmd; ! 867: int len; ! 868: ! 869: if (!ledebug) ! 870: return; ! 871: ! 872: tmd = le->sc_r2->ler2_tmd; ! 873: len = -tmd->tmd2; ! 874: log(LOG_WARNING, ! 875: "le%d: oerror: to %s: buf=%d, len=%d, tmd1=%b, tmd3=%b\n", ! 876: unit, ! 877: len > 5 ? ether_sprintf(&le->sc_r2->ler2_tbuf[0][0]) : "unknown", ! 878: 0, len, ! 879: tmd->tmd1, ! 880: "\20\20OWN\17ERR\16RES\15MORE\14ONE\13DEF\12STP\11ENP", ! 881: tmd->tmd3, ! 882: "\20\20BUFF\17UFLO\16RES\15LCOL\14LCAR\13RTRY"); ! 883: } ! 884: #endif
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