1 /* $NetBSD: if_il.c,v 1.5 2002/05/22 16:03:17 wiz Exp $ */ 2 /* 3 * Copyright (c) 1982, 1986 Regents of the University of California. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by the University of 17 * California, Berkeley and its contributors. 18 * 4. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * @(#)if_il.c 7.8 (Berkeley) 12/16/90 35 */ 36 37 /* 38 * Interlan Ethernet Communications Controller interface 39 */ 40 41 #include <sys/cdefs.h> 42 __KERNEL_RCSID(0, "$NetBSD: if_il.c,v 1.5 2002/05/22 16:03:17 wiz Exp $"); 43 44 #include "opt_inet.h" 45 #include "opt_ns.h" 46 47 #include <sys/param.h> 48 #include <sys/systm.h> 49 #include <sys/mbuf.h> 50 #include <sys/buf.h> 51 #include <sys/protosw.h> 52 #include <sys/socket.h> 53 #include <sys/ioctl.h> 54 #include <sys/errno.h> 55 #include <sys/syslog.h> 56 #include <sys/device.h> 57 58 #include <net/if.h> 59 #include <net/if_ether.h> 60 #include <net/if_dl.h> 61 62 #ifdef INET 63 #include <netinet/in.h> 64 #endif 65 66 #ifdef NS 67 #include <netns/ns.h> 68 #include <netns/ns_if.h> 69 #endif 70 71 #include <machine/bus.h> 72 73 #include <dev/qbus/ubareg.h> 74 #include <dev/qbus/ubavar.h> 75 #include <dev/qbus/if_uba.h> 76 77 #include <dev/qbus/if_il.h> 78 #include <dev/qbus/if_ilreg.h> 79 80 /* 81 * Ethernet software status per interface. 82 * 83 * Each interface is referenced by a network interface structure, 84 * is_if, which the routing code uses to locate the interface. 85 * This structure contains the output queue for the interface, its address, ... 86 * We also have, for each interface, a UBA interface structure, which 87 * contains information about the UNIBUS resources held by the interface: 88 * map registers, buffered data paths, etc. Information is cached in this 89 * structure for use by the if_uba.c routines in running the interface 90 * efficiently. 91 */ 92 93 struct il_softc { 94 struct device sc_dev; /* Configuration common part */ 95 struct ethercom sc_ec; /* Ethernet common part */ 96 #define sc_if sc_ec.ec_if /* network-visible interface */ 97 struct evcnt sc_cintrcnt; /* Command interrupts */ 98 struct evcnt sc_rintrcnt; /* Receive interrupts */ 99 bus_space_tag_t sc_iot; 100 bus_addr_t sc_ioh; 101 bus_dma_tag_t sc_dmat; 102 struct ubinfo sc_ui; 103 104 struct ifuba sc_ifuba; /* UNIBUS resources */ 105 int sc_flags; 106 #define ILF_RCVPENDING 0x2 /* start rcv in ilcint */ 107 #define ILF_STATPENDING 0x4 /* stat cmd pending */ 108 #define ILF_RUNNING 0x8 /* board is running */ 109 #define ILF_SETADDR 0x10 /* physical address is changed */ 110 short sc_lastcmd; /* can't read csr, so must save it */ 111 short sc_scaninterval; /* interval of stat collection */ 112 #define ILWATCHINTERVAL 60 /* once every 60 seconds */ 113 union { 114 struct il_stats isu_stats; /* holds on-board statistics */ 115 struct ether_addr isu_maddrs[63]; /* multicast addrs */ 116 } sc_isu; 117 #define sc_stats sc_isu.isu_stats 118 #define sc_maddrs sc_isu.isu_maddrs 119 struct il_stats sc_sum; /* summation over time */ 120 int sc_ubaddr; /* mapping registers of is_stats */ 121 }; 122 123 static int ilmatch(struct device *, struct cfdata *, void *); 124 static void ilattach(struct device *, struct device *, void *); 125 static void ilcint(void *); 126 static void ilrint(void *); 127 static void ilreset(struct device *); 128 static int ilwait(struct il_softc *, char *); 129 static int ilinit(struct ifnet *); 130 static void ilstart(struct ifnet *); 131 static void ilwatch(struct ifnet *); 132 static void iltotal(struct il_softc *); 133 static void ilstop(struct ifnet *, int); 134 135 struct cfattach il_ca = { 136 sizeof(struct il_softc), ilmatch, ilattach 137 }; 138 139 #define IL_WCSR(csr, val) \ 140 bus_space_write_2(sc->sc_iot, sc->sc_ioh, csr, val) 141 #define IL_RCSR(csr) \ 142 bus_space_read_2(sc->sc_iot, sc->sc_ioh, csr) 143 #define LOWORD(x) ((int)(x) & 0xffff) 144 #define HIWORD(x) (((int)(x) >> 16) & 0x3) 145 146 int 147 ilmatch(struct device *parent, struct cfdata *cf, void *aux) 148 { 149 struct uba_attach_args *ua = aux; 150 volatile int i; 151 152 bus_space_write_2(ua->ua_iot, ua->ua_ioh, IL_CSR, ILC_OFFLINE|IL_CIE); 153 DELAY(100000); 154 i = bus_space_read_2(ua->ua_iot, ua->ua_ioh, IL_CSR); /* clear CDONE */ 155 156 return 1; 157 } 158 159 /* 160 * Interface exists: make available by filling in network interface 161 * record. System will initialize the interface when it is ready 162 * to accept packets. A STATUS command is done to get the ethernet 163 * address and other interesting data. 164 */ 165 void 166 ilattach(struct device *parent, struct device *self, void *aux) 167 { 168 struct uba_attach_args *ua = aux; 169 struct il_softc *sc = (struct il_softc *)self; 170 struct ifnet *ifp = &sc->sc_if; 171 int error; 172 173 sc->sc_iot = ua->ua_iot; 174 sc->sc_ioh = ua->ua_ioh; 175 sc->sc_dmat = ua->ua_dmat; 176 177 /* 178 * Map interrupt vectors and reset function. 179 */ 180 uba_intr_establish(ua->ua_icookie, ua->ua_cvec, ilcint, 181 sc, &sc->sc_cintrcnt); 182 evcnt_attach_dynamic(&sc->sc_cintrcnt, EVCNT_TYPE_INTR, ua->ua_evcnt, 183 sc->sc_dev.dv_xname, "intr"); 184 uba_intr_establish(ua->ua_icookie, ua->ua_cvec-4, ilrint, 185 sc, &sc->sc_rintrcnt); 186 evcnt_attach_dynamic(&sc->sc_rintrcnt, EVCNT_TYPE_INTR, ua->ua_evcnt, 187 sc->sc_dev.dv_xname, "intr"); 188 uba_reset_establish(ilreset, &sc->sc_dev); 189 190 /* 191 * Reset the board and map the statistics 192 * buffer onto the Unibus. 193 */ 194 IL_WCSR(IL_CSR, ILC_RESET); 195 (void)ilwait(sc, "reset"); 196 sc->sc_ui.ui_size = sizeof(struct il_stats); 197 sc->sc_ui.ui_vaddr = (caddr_t)&sc->sc_stats; 198 if ((error = uballoc((struct uba_softc *)parent, &sc->sc_ui, 0))) 199 return printf(": failed uballoc, error = %d\n", error); 200 201 IL_WCSR(IL_BAR, LOWORD(sc->sc_ui.ui_baddr)); 202 IL_WCSR(IL_BCR, sizeof(struct il_stats)); 203 IL_WCSR(IL_CSR, ((sc->sc_ui.ui_baddr >> 2) & IL_EUA)|ILC_STAT); 204 (void)ilwait(sc, "status"); 205 ubfree((struct uba_softc *)parent, &sc->sc_ui); 206 printf("%s: module=%s firmware=%s\n", sc->sc_dev.dv_xname, 207 sc->sc_stats.ils_module, sc->sc_stats.ils_firmware); 208 printf("%s: hardware address %s\n", sc->sc_dev.dv_xname, 209 ether_sprintf(sc->sc_stats.ils_addr)); 210 211 strcpy(ifp->if_xname, sc->sc_dev.dv_xname); 212 ifp->if_softc = sc; 213 ifp->if_flags = IFF_BROADCAST; 214 ifp->if_init = ilinit; 215 ifp->if_stop = ilstop; 216 ifp->if_ioctl = ether_ioctl; 217 ifp->if_start = ilstart; 218 ifp->if_watchdog = ilwatch; 219 IFQ_SET_READY(&ifp->if_snd); 220 221 if_attach(ifp); 222 ether_ifattach(ifp, sc->sc_stats.ils_addr); 223 } 224 225 void 226 ilstop(struct ifnet *ifp, int a) 227 { 228 struct il_softc *sc = ifp->if_softc; 229 230 IL_WCSR(IL_CSR, ILC_RESET); 231 } 232 233 234 int 235 ilwait(struct il_softc *sc, char *op) 236 { 237 238 while ((IL_RCSR(IL_CSR)&IL_CDONE) == 0) 239 ; 240 if (IL_RCSR(IL_CSR)&IL_STATUS) { 241 char bits[64]; 242 243 printf("%s: %s failed, csr=%s\n", sc->sc_dev.dv_xname, op, 244 bitmask_snprintf(IL_RCSR(IL_CSR), IL_BITS, bits, 245 sizeof(bits))); 246 return (-1); 247 } 248 return (0); 249 } 250 251 /* 252 * Reset of interface after UNIBUS reset. 253 * If interface is on specified uba, reset its state. 254 */ 255 void 256 ilreset(struct device *dev) 257 { 258 struct il_softc *sc = (void *)dev; 259 260 printf(" %s", sc->sc_dev.dv_xname); 261 sc->sc_if.if_flags &= ~IFF_RUNNING; 262 sc->sc_flags &= ~ILF_RUNNING; 263 ilinit(&sc->sc_if); 264 } 265 266 /* 267 * Initialization of interface; clear recorded pending 268 * operations, and reinitialize UNIBUS usage. 269 */ 270 int 271 ilinit(struct ifnet *ifp) 272 { 273 struct il_softc *sc = ifp->if_softc; 274 int s; 275 276 if (sc->sc_flags & ILF_RUNNING) 277 return 0; 278 279 if ((ifp->if_flags & IFF_RUNNING) == 0) { 280 if (if_ubainit(&sc->sc_ifuba, (void *)sc->sc_dev.dv_parent, 281 ETHER_MAX_LEN)) { 282 printf("%s: can't initialize\n", sc->sc_dev.dv_xname); 283 sc->sc_if.if_flags &= ~IFF_UP; 284 return 0; 285 } 286 sc->sc_ui.ui_size = sizeof(sc->sc_isu); 287 sc->sc_ui.ui_vaddr = (caddr_t)&sc->sc_isu; 288 uballoc((void *)sc->sc_dev.dv_parent, &sc->sc_ui, 0); 289 } 290 sc->sc_scaninterval = ILWATCHINTERVAL; 291 ifp->if_timer = sc->sc_scaninterval; 292 293 /* 294 * Turn off source address insertion (it's faster this way), 295 * and set board online. Former doesn't work if board is 296 * already online (happens on ubareset), so we put it offline 297 * first. 298 */ 299 s = splnet(); 300 IL_WCSR(IL_CSR, ILC_RESET); 301 if (ilwait(sc, "hardware diag")) { 302 sc->sc_if.if_flags &= ~IFF_UP; 303 splx(s); 304 return 0; 305 } 306 IL_WCSR(IL_CSR, ILC_CISA); 307 while ((IL_RCSR(IL_CSR) & IL_CDONE) == 0) 308 ; 309 /* 310 * If we must reprogram this board's physical ethernet 311 * address (as for secondary XNS interfaces), we do so 312 * before putting it on line, and starting receive requests. 313 * If you try this on an older 1010 board, it will total 314 * wedge the board. 315 */ 316 if (sc->sc_flags & ILF_SETADDR) { 317 bcopy((caddr_t)LLADDR(ifp->if_sadl), 318 (caddr_t)&sc->sc_isu, ETHER_ADDR_LEN); 319 IL_WCSR(IL_BAR, LOWORD(sc->sc_ui.ui_baddr)); 320 IL_WCSR(IL_BCR, ETHER_ADDR_LEN); 321 IL_WCSR(IL_CSR, ((sc->sc_ui.ui_baddr >> 2) & IL_EUA)|ILC_LDPA); 322 if (ilwait(sc, "setaddr")) 323 return 0; 324 IL_WCSR(IL_BAR, LOWORD(sc->sc_ui.ui_baddr)); 325 IL_WCSR(IL_BCR, sizeof (struct il_stats)); 326 IL_WCSR(IL_CSR, ((sc->sc_ui.ui_baddr >> 2) & IL_EUA)|ILC_STAT); 327 if (ilwait(sc, "verifying setaddr")) 328 return 0; 329 if (memcmp((caddr_t)sc->sc_stats.ils_addr, 330 (caddr_t)LLADDR(ifp->if_sadl), ETHER_ADDR_LEN) != 0) { 331 printf("%s: setaddr didn't work\n", 332 sc->sc_dev.dv_xname); 333 return 0; 334 } 335 } 336 #ifdef MULTICAST 337 if (is->is_if.if_flags & IFF_PROMISC) { 338 addr->il_csr = ILC_PRMSC; 339 if (ilwait(ui, "all multi")) 340 return 0; 341 } else if (is->is_if.if_flags & IFF_ALLMULTI) { 342 too_many_multis: 343 addr->il_csr = ILC_ALLMC; 344 if (ilwait(ui, "all multi")) 345 return 0; 346 else { 347 int i; 348 register struct ether_addr *ep = is->is_maddrs; 349 struct ether_multi *enm; 350 struct ether_multistep step; 351 /* 352 * Step through our list of multicast addresses. If we have 353 * too many multicast addresses, or if we have to listen to 354 * a range of multicast addresses, turn on reception of all 355 * multicasts. 356 */ 357 i = 0; 358 ETHER_FIRST_MULTI(step, &is->is_ac, enm); 359 while (enm != NULL) { 360 if (++i > 63 && k != 0) { 361 break; 362 } 363 *ep++ = *(struct ether_addr *)enm->enm_addrlo; 364 ETHER_NEXT_MULTI(step, enm); 365 } 366 if (i = 0) { 367 /* no multicasts! */ 368 } else if (i <= 63) { 369 addr->il_bar = is->is_ubaddr & 0xffff; 370 addr->il_bcr = i * sizeof (struct ether_addr); 371 addr->il_csr = ((is->is_ubaddr >> 2) & IL_EUA)| 372 LC_LDGRPS; 373 if (ilwait(ui, "load multi")) 374 return; 375 } else { 376 is->is_if.if_flags |= IFF_ALLMULTI; 377 goto too_many_multis; 378 } 379 } 380 #endif /* MULTICAST */ 381 /* 382 * Set board online. 383 * Hang receive buffer and start any pending 384 * writes by faking a transmit complete. 385 * Receive bcr is not a multiple of 8 so buffer 386 * chaining can't happen. 387 */ 388 IL_WCSR(IL_CSR, ILC_ONLINE); 389 while ((IL_RCSR(IL_CSR) & IL_CDONE) == 0) 390 ; 391 392 IL_WCSR(IL_BAR, LOWORD(sc->sc_ifuba.ifu_r.ifrw_info)); 393 IL_WCSR(IL_BCR, sizeof(struct il_rheader) + ETHERMTU + 6); 394 IL_WCSR(IL_CSR, 395 ((sc->sc_ifuba.ifu_r.ifrw_info >> 2) & IL_EUA)|ILC_RCV|IL_RIE); 396 while ((IL_RCSR(IL_CSR) & IL_CDONE) == 0) 397 ; 398 ifp->if_flags |= IFF_RUNNING | IFF_OACTIVE; 399 sc->sc_flags |= ILF_RUNNING; 400 sc->sc_lastcmd = 0; 401 ilcint(sc); 402 splx(s); 403 return 0; 404 } 405 406 /* 407 * Start output on interface. 408 * Get another datagram to send off of the interface queue, 409 * and map it to the interface before starting the output. 410 */ 411 void 412 ilstart(struct ifnet *ifp) 413 { 414 struct il_softc *sc = ifp->if_softc; 415 int len; 416 struct mbuf *m; 417 short csr; 418 419 IFQ_DEQUEUE(&ifp->if_snd, m); 420 if (m == 0) { 421 if ((sc->sc_flags & ILF_STATPENDING) == 0) 422 return; 423 IL_WCSR(IL_BAR, LOWORD(sc->sc_ui.ui_baddr)); 424 IL_WCSR(IL_BCR, sizeof (struct il_stats)); 425 csr = ((sc->sc_ui.ui_baddr >> 2) & IL_EUA)|ILC_STAT|IL_RIE|IL_CIE; 426 sc->sc_flags &= ~ILF_STATPENDING; 427 goto startcmd; 428 } 429 len = if_wubaput(&sc->sc_ifuba, m); 430 /* 431 * Ensure minimum packet length. 432 * This makes the safe assumtion that there are no virtual holes 433 * after the data. 434 * For security, it might be wise to zero out the added bytes, 435 * but we're mainly interested in speed at the moment. 436 */ 437 if (len - sizeof(struct ether_header) < ETHERMIN) 438 len = ETHERMIN + sizeof(struct ether_header); 439 #ifdef notdef 440 if (sc->sc_ifuba.ifu_flags & UBA_NEEDBDP) 441 UBAPURGE(is->is_ifuba.ifu_uba, is->is_ifuba.ifu_w.ifrw_bdp); 442 #endif 443 IL_WCSR(IL_BAR, LOWORD(sc->sc_ifuba.ifu_w.ifrw_info)); 444 IL_WCSR(IL_BCR, len); 445 csr = 446 ((sc->sc_ifuba.ifu_w.ifrw_info >> 2) & IL_EUA)|ILC_XMIT|IL_CIE|IL_RIE; 447 448 startcmd: 449 sc->sc_lastcmd = csr & IL_CMD; 450 IL_WCSR(IL_CSR, csr); 451 ifp->if_flags |= IFF_OACTIVE; 452 return; 453 } 454 455 /* 456 * Command done interrupt. 457 */ 458 void 459 ilcint(void *arg) 460 { 461 struct il_softc *sc = arg; 462 short csr; 463 464 if ((sc->sc_if.if_flags & IFF_OACTIVE) == 0) { 465 char bits[64]; 466 467 printf("%s: stray xmit interrupt, csr=%s\n", 468 sc->sc_dev.dv_xname, 469 bitmask_snprintf(IL_RCSR(IL_CSR), IL_BITS, bits, 470 sizeof(bits))); 471 return; 472 } 473 474 csr = IL_RCSR(IL_CSR); 475 /* 476 * Hang receive buffer if it couldn't 477 * be done earlier (in ilrint). 478 */ 479 if (sc->sc_flags & ILF_RCVPENDING) { 480 int s; 481 482 IL_WCSR(IL_BAR, LOWORD(sc->sc_ifuba.ifu_r.ifrw_info)); 483 IL_WCSR(IL_BCR, sizeof(struct il_rheader) + ETHERMTU + 6); 484 IL_WCSR(IL_CSR, 485 ((sc->sc_ifuba.ifu_r.ifrw_info>>2) & IL_EUA)|ILC_RCV|IL_RIE); 486 s = splhigh(); 487 while ((IL_RCSR(IL_CSR) & IL_CDONE) == 0) 488 ; 489 splx(s); 490 sc->sc_flags &= ~ILF_RCVPENDING; 491 } 492 sc->sc_if.if_flags &= ~IFF_OACTIVE; 493 csr &= IL_STATUS; 494 switch (sc->sc_lastcmd) { 495 496 case ILC_XMIT: 497 sc->sc_if.if_opackets++; 498 if (csr > ILERR_RETRIES) 499 sc->sc_if.if_oerrors++; 500 break; 501 502 case ILC_STAT: 503 if (csr == ILERR_SUCCESS) 504 iltotal(sc); 505 break; 506 } 507 if_wubaend(&sc->sc_ifuba); 508 ilstart(&sc->sc_if); 509 } 510 511 /* 512 * Ethernet interface receiver interrupt. 513 * If input error just drop packet. 514 * Otherwise purge input buffered data path and examine 515 * packet to determine type. If can't determine length 516 * from type, then have to drop packet. Othewise decapsulate 517 * packet based on type and pass to type specific higher-level 518 * input routine. 519 */ 520 void 521 ilrint(void *arg) 522 { 523 struct il_softc *sc = arg; 524 struct il_rheader *il; 525 struct mbuf *m; 526 int len, s; 527 528 sc->sc_if.if_ipackets++; 529 #ifdef notyet 530 if (sc->sc_ifuba.ifu_flags & UBA_NEEDBDP) 531 UBAPURGE(is->is_ifuba.ifu_uba, is->is_ifuba.ifu_r.ifrw_bdp); 532 #endif 533 il = (struct il_rheader *)(sc->sc_ifuba.ifu_r.ifrw_addr); 534 len = il->ilr_length - sizeof(struct il_rheader); 535 if ((il->ilr_status&(ILFSTAT_A|ILFSTAT_C)) || len < 46 || 536 len > ETHERMTU) { 537 sc->sc_if.if_ierrors++; 538 #ifdef notdef 539 if (sc->sc_if.if_ierrors % 100 == 0) 540 printf("il%d: += 100 input errors\n", unit); 541 #endif 542 goto setup; 543 } 544 545 if (len == 0) 546 goto setup; 547 548 /* 549 * Pull packet off interface. 550 */ 551 m = if_rubaget(&sc->sc_ifuba, &sc->sc_if, len); 552 if (m == NULL) 553 goto setup; 554 555 /* Shave off status hdr */ 556 m_adj(m, 4); 557 (*sc->sc_if.if_input)(&sc->sc_if, m); 558 setup: 559 /* 560 * Reset for next packet if possible. 561 * If waiting for transmit command completion, set flag 562 * and wait until command completes. 563 */ 564 if (sc->sc_if.if_flags & IFF_OACTIVE) { 565 sc->sc_flags |= ILF_RCVPENDING; 566 return; 567 } 568 IL_WCSR(IL_BAR, LOWORD(sc->sc_ifuba.ifu_r.ifrw_info)); 569 IL_WCSR(IL_BCR, sizeof(struct il_rheader) + ETHERMTU + 6); 570 IL_WCSR(IL_CSR, 571 ((sc->sc_ifuba.ifu_r.ifrw_info >> 2) & IL_EUA)|ILC_RCV|IL_RIE); 572 s = splhigh(); 573 while ((IL_RCSR(IL_CSR) & IL_CDONE) == 0) 574 ; 575 splx(s); 576 } 577 /* 578 * Watchdog routine, request statistics from board. 579 */ 580 void 581 ilwatch(struct ifnet *ifp) 582 { 583 struct il_softc *sc = ifp->if_softc; 584 int s; 585 586 if (sc->sc_flags & ILF_STATPENDING) { 587 ifp->if_timer = sc->sc_scaninterval; 588 return; 589 } 590 s = splnet(); 591 sc->sc_flags |= ILF_STATPENDING; 592 if ((sc->sc_if.if_flags & IFF_OACTIVE) == 0) 593 ilstart(ifp); 594 splx(s); 595 ifp->if_timer = sc->sc_scaninterval; 596 } 597 598 /* 599 * Total up the on-board statistics. 600 */ 601 void 602 iltotal(struct il_softc *sc) 603 { 604 struct ifnet *ifp = &sc->sc_if; 605 u_short *interval, *sum, *end; 606 607 interval = &sc->sc_stats.ils_frames; 608 sum = &sc->sc_sum.ils_frames; 609 end = sc->sc_sum.ils_fill2; 610 while (sum < end) 611 *sum++ += *interval++; 612 sc->sc_if.if_collisions = sc->sc_sum.ils_collis; 613 if ((sc->sc_flags & ILF_SETADDR) && 614 (memcmp((caddr_t)sc->sc_stats.ils_addr, LLADDR(ifp->if_sadl), 615 ETHER_ADDR_LEN) != 0)) { 616 log(LOG_ERR, "%s: physaddr reverted\n", sc->sc_dev.dv_xname); 617 sc->sc_flags &= ~ILF_RUNNING; 618 ilinit(&sc->sc_if); 619 } 620 } 621 622 #ifdef notyet 623 /* 624 * set ethernet address for unit 625 */ 626 void 627 il_setaddr(u_char *physaddr, struct il_softc *sc) 628 { 629 if (! (sc->sc_flags & ILF_RUNNING)) 630 return; 631 632 bcopy((caddr_t)physaddr, (caddr_t)is->is_addr, sizeof is->is_addr); 633 sc->sc_flags &= ~ILF_RUNNING; 634 sc->sc_flags |= ILF_SETADDR; 635 ilinit(&sc->sc_if); 636 } 637 #endif 638