| 1 | /* $NetBSD: pdq_ifsubr.c,v 1.57 2016/06/10 13:27:13 ozaki-r Exp $ */ |
| 2 | |
| 3 | /*- |
| 4 | * Copyright (c) 1995, 1996 Matt Thomas <matt@3am-software.com> |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * Redistribution and use in source and binary forms, with or without |
| 8 | * modification, are permitted provided that the following conditions |
| 9 | * are met: |
| 10 | * 1. Redistributions of source code must retain the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer. |
| 12 | * 2. The name of the author may not be used to endorse or promote products |
| 13 | * derived from this software without specific prior written permission |
| 14 | * |
| 15 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 16 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 17 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 18 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 19 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 20 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 21 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 22 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 23 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 24 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 25 | * |
| 26 | * Id: pdq_ifsubr.c,v 1.12 1997/06/05 01:56:35 thomas Exp |
| 27 | * |
| 28 | */ |
| 29 | |
| 30 | /* |
| 31 | * DEC PDQ FDDI Controller; code for BSD derived operating systems |
| 32 | * |
| 33 | * This module provide bus independent BSD specific O/S functions. |
| 34 | * (ie. it provides an ifnet interface to the rest of the system) |
| 35 | */ |
| 36 | |
| 37 | #include <sys/cdefs.h> |
| 38 | __KERNEL_RCSID(0, "$NetBSD: pdq_ifsubr.c,v 1.57 2016/06/10 13:27:13 ozaki-r Exp $" ); |
| 39 | |
| 40 | #ifdef __NetBSD__ |
| 41 | #include "opt_inet.h" |
| 42 | #endif |
| 43 | |
| 44 | #include <sys/param.h> |
| 45 | #include <sys/kernel.h> |
| 46 | #include <sys/mbuf.h> |
| 47 | #include <sys/protosw.h> |
| 48 | #include <sys/socket.h> |
| 49 | #include <sys/ioctl.h> |
| 50 | #include <sys/errno.h> |
| 51 | #include <sys/malloc.h> |
| 52 | #if defined(__FreeBSD__) && BSD < 199401 |
| 53 | #include <sys/devconf.h> |
| 54 | #elif defined(__bsdi__) || defined(__NetBSD__) |
| 55 | #include <sys/device.h> |
| 56 | #endif |
| 57 | |
| 58 | #include <net/if.h> |
| 59 | #include <net/if_types.h> |
| 60 | #include <net/if_dl.h> |
| 61 | #if !defined(__NetBSD__) |
| 62 | #include <net/route.h> |
| 63 | #endif |
| 64 | |
| 65 | #include <net/bpf.h> |
| 66 | #include <net/bpfdesc.h> |
| 67 | |
| 68 | #ifdef INET |
| 69 | #include <netinet/in.h> |
| 70 | #include <netinet/in_systm.h> |
| 71 | #include <netinet/in_var.h> |
| 72 | #include <netinet/ip.h> |
| 73 | #if defined(__NetBSD__) |
| 74 | #include <netinet/if_inarp.h> |
| 75 | #endif |
| 76 | #endif |
| 77 | #if defined(__FreeBSD__) |
| 78 | #include <netinet/if_ether.h> |
| 79 | #include <netinet/if_fddi.h> |
| 80 | #else |
| 81 | #include <net/if_fddi.h> |
| 82 | #endif |
| 83 | |
| 84 | #if defined(__bsdi__) |
| 85 | #include <netinet/if_ether.h> |
| 86 | #include <i386/isa/isavar.h> |
| 87 | #endif |
| 88 | |
| 89 | |
| 90 | #ifndef __NetBSD__ |
| 91 | #include <vm/vm.h> |
| 92 | #endif |
| 93 | |
| 94 | #if defined(__FreeBSD__) |
| 95 | /* |
| 96 | * Yet another specific ifdef for FreeBSD as it diverges... |
| 97 | */ |
| 98 | #include <dev/pdq/pdqvar.h> |
| 99 | #include <dev/pdq/pdqreg.h> |
| 100 | #else |
| 101 | #include "pdqvar.h" |
| 102 | #include "pdqreg.h" |
| 103 | #endif |
| 104 | |
| 105 | void |
| 106 | pdq_ifinit( |
| 107 | pdq_softc_t *sc) |
| 108 | { |
| 109 | if (sc->sc_if.if_flags & IFF_UP) { |
| 110 | sc->sc_if.if_flags |= IFF_RUNNING; |
| 111 | if (sc->sc_if.if_flags & IFF_PROMISC) { |
| 112 | sc->sc_pdq->pdq_flags |= PDQ_PROMISC; |
| 113 | } else { |
| 114 | sc->sc_pdq->pdq_flags &= ~PDQ_PROMISC; |
| 115 | } |
| 116 | if (sc->sc_if.if_flags & IFF_LINK1) { |
| 117 | sc->sc_pdq->pdq_flags |= PDQ_PASS_SMT; |
| 118 | } else { |
| 119 | sc->sc_pdq->pdq_flags &= ~PDQ_PASS_SMT; |
| 120 | } |
| 121 | sc->sc_pdq->pdq_flags |= PDQ_RUNNING; |
| 122 | pdq_run(sc->sc_pdq); |
| 123 | } else { |
| 124 | sc->sc_if.if_flags &= ~IFF_RUNNING; |
| 125 | sc->sc_pdq->pdq_flags &= ~PDQ_RUNNING; |
| 126 | pdq_stop(sc->sc_pdq); |
| 127 | } |
| 128 | } |
| 129 | |
| 130 | void |
| 131 | pdq_ifwatchdog( |
| 132 | struct ifnet *ifp) |
| 133 | { |
| 134 | /* |
| 135 | * No progress was made on the transmit queue for PDQ_OS_TX_TRANSMIT |
| 136 | * seconds. Remove all queued packets. |
| 137 | */ |
| 138 | |
| 139 | ifp->if_flags &= ~IFF_OACTIVE; |
| 140 | ifp->if_timer = 0; |
| 141 | for (;;) { |
| 142 | struct mbuf *m; |
| 143 | IFQ_DEQUEUE(&ifp->if_snd, m); |
| 144 | if (m == NULL) |
| 145 | return; |
| 146 | PDQ_OS_DATABUF_FREE(PDQ_OS_IFP_TO_SOFTC(ifp)->sc_pdq, m); |
| 147 | } |
| 148 | } |
| 149 | |
| 150 | ifnet_ret_t |
| 151 | pdq_ifstart( |
| 152 | struct ifnet *ifp) |
| 153 | { |
| 154 | pdq_softc_t * const sc = PDQ_OS_IFP_TO_SOFTC(ifp); |
| 155 | struct mbuf *m; |
| 156 | int tx = 0; |
| 157 | |
| 158 | if ((ifp->if_flags & IFF_RUNNING) == 0) |
| 159 | return; |
| 160 | |
| 161 | if (sc->sc_if.if_timer == 0) |
| 162 | sc->sc_if.if_timer = PDQ_OS_TX_TIMEOUT; |
| 163 | |
| 164 | if ((sc->sc_pdq->pdq_flags & PDQ_TXOK) == 0) { |
| 165 | sc->sc_if.if_flags |= IFF_OACTIVE; |
| 166 | return; |
| 167 | } |
| 168 | sc->sc_flags |= PDQIF_DOWNCALL; |
| 169 | for (;; tx = 1) { |
| 170 | IFQ_POLL(&ifp->if_snd, m); |
| 171 | if (m == NULL) |
| 172 | break; |
| 173 | #if defined(PDQ_BUS_DMA) && !defined(PDQ_BUS_DMA_NOTX) |
| 174 | if ((m->m_flags & M_HASTXDMAMAP) == 0) { |
| 175 | bus_dmamap_t map; |
| 176 | if (PDQ_OS_HDR_OFFSET != PDQ_RX_FC_OFFSET) { |
| 177 | m->m_data[0] = PDQ_FDDI_PH0; |
| 178 | m->m_data[1] = PDQ_FDDI_PH1; |
| 179 | m->m_data[2] = PDQ_FDDI_PH2; |
| 180 | } |
| 181 | if (!bus_dmamap_create(sc->sc_dmatag, m->m_pkthdr.len, 255, |
| 182 | m->m_pkthdr.len, 0, BUS_DMA_NOWAIT, &map)) { |
| 183 | if (!bus_dmamap_load_mbuf(sc->sc_dmatag, map, m, |
| 184 | BUS_DMA_WRITE|BUS_DMA_NOWAIT)) { |
| 185 | bus_dmamap_sync(sc->sc_dmatag, map, 0, m->m_pkthdr.len, |
| 186 | BUS_DMASYNC_PREWRITE); |
| 187 | M_SETCTX(m, map); |
| 188 | m->m_flags |= M_HASTXDMAMAP; |
| 189 | } |
| 190 | } |
| 191 | if ((m->m_flags & M_HASTXDMAMAP) == 0) |
| 192 | break; |
| 193 | } |
| 194 | #else |
| 195 | if (PDQ_OS_HDR_OFFSET != PDQ_RX_FC_OFFSET) { |
| 196 | m->m_data[0] = PDQ_FDDI_PH0; |
| 197 | m->m_data[1] = PDQ_FDDI_PH1; |
| 198 | m->m_data[2] = PDQ_FDDI_PH2; |
| 199 | } |
| 200 | #endif |
| 201 | |
| 202 | if (pdq_queue_transmit_data(sc->sc_pdq, m) == PDQ_FALSE) |
| 203 | break; |
| 204 | IFQ_DEQUEUE(&ifp->if_snd, m); |
| 205 | } |
| 206 | if (m != NULL) |
| 207 | ifp->if_flags |= IFF_OACTIVE; |
| 208 | if (tx) |
| 209 | PDQ_DO_TYPE2_PRODUCER(sc->sc_pdq); |
| 210 | sc->sc_flags &= ~PDQIF_DOWNCALL; |
| 211 | } |
| 212 | |
| 213 | void |
| 214 | pdq_os_receive_pdu( |
| 215 | pdq_t *pdq, |
| 216 | struct mbuf *m, |
| 217 | size_t pktlen, |
| 218 | int drop) |
| 219 | { |
| 220 | pdq_softc_t *sc = pdq->pdq_os_ctx; |
| 221 | struct fddi_header *fh; |
| 222 | |
| 223 | sc->sc_if.if_ipackets++; |
| 224 | #if defined(PDQ_BUS_DMA) |
| 225 | { |
| 226 | /* |
| 227 | * Even though the first mbuf start at the first fddi header octet, |
| 228 | * the dmamap starts PDQ_OS_HDR_OFFSET octets earlier. Any additional |
| 229 | * mbufs will start normally. |
| 230 | */ |
| 231 | int offset = PDQ_OS_HDR_OFFSET; |
| 232 | struct mbuf *m0; |
| 233 | for (m0 = m; m0 != NULL; m0 = m0->m_next, offset = 0) { |
| 234 | pdq_os_databuf_sync(sc, m0, offset, m0->m_len, BUS_DMASYNC_POSTREAD); |
| 235 | bus_dmamap_unload(sc->sc_dmatag, M_GETCTX(m0, bus_dmamap_t)); |
| 236 | bus_dmamap_destroy(sc->sc_dmatag, M_GETCTX(m0, bus_dmamap_t)); |
| 237 | m0->m_flags &= ~M_HASRXDMAMAP; |
| 238 | M_SETCTX(m0, NULL); |
| 239 | } |
| 240 | } |
| 241 | #endif |
| 242 | m->m_pkthdr.len = pktlen; |
| 243 | if (sc->sc_bpf != NULL) |
| 244 | PDQ_BPF_MTAP(sc, m); |
| 245 | fh = mtod(m, struct fddi_header *); |
| 246 | if (drop || (fh->fddi_fc & (FDDIFC_L|FDDIFC_F)) != FDDIFC_LLC_ASYNC) { |
| 247 | PDQ_OS_DATABUF_FREE(pdq, m); |
| 248 | return; |
| 249 | } |
| 250 | |
| 251 | m_set_rcvif(m, &sc->sc_if); |
| 252 | if_percpuq_enqueue((&sc->sc_if)->if_percpuq, m); |
| 253 | } |
| 254 | |
| 255 | void |
| 256 | pdq_os_restart_transmitter( |
| 257 | pdq_t *pdq) |
| 258 | { |
| 259 | pdq_softc_t *sc = pdq->pdq_os_ctx; |
| 260 | sc->sc_if.if_flags &= ~IFF_OACTIVE; |
| 261 | if (IFQ_IS_EMPTY(&sc->sc_if.if_snd) == 0) { |
| 262 | sc->sc_if.if_timer = PDQ_OS_TX_TIMEOUT; |
| 263 | if ((sc->sc_flags & PDQIF_DOWNCALL) == 0) |
| 264 | pdq_ifstart(&sc->sc_if); |
| 265 | } else { |
| 266 | sc->sc_if.if_timer = 0; |
| 267 | } |
| 268 | } |
| 269 | |
| 270 | void |
| 271 | pdq_os_transmit_done( |
| 272 | pdq_t *pdq, |
| 273 | struct mbuf *m) |
| 274 | { |
| 275 | pdq_softc_t *sc = pdq->pdq_os_ctx; |
| 276 | if (sc->sc_bpf != NULL) |
| 277 | PDQ_BPF_MTAP(sc, m); |
| 278 | PDQ_OS_DATABUF_FREE(pdq, m); |
| 279 | sc->sc_if.if_opackets++; |
| 280 | } |
| 281 | |
| 282 | void |
| 283 | pdq_os_addr_fill( |
| 284 | pdq_t *pdq, |
| 285 | pdq_lanaddr_t *addr, |
| 286 | size_t num_addrs) |
| 287 | { |
| 288 | pdq_softc_t *sc = pdq->pdq_os_ctx; |
| 289 | struct ether_multistep step; |
| 290 | struct ether_multi *enm; |
| 291 | |
| 292 | /* |
| 293 | * ADDR_FILTER_SET is always issued before FILTER_SET so |
| 294 | * we can play with PDQ_ALLMULTI and not worry about |
| 295 | * queueing a FILTER_SET ourselves. |
| 296 | */ |
| 297 | |
| 298 | pdq->pdq_flags &= ~PDQ_ALLMULTI; |
| 299 | #if defined(IFF_ALLMULTI) |
| 300 | sc->sc_if.if_flags &= ~IFF_ALLMULTI; |
| 301 | #endif |
| 302 | |
| 303 | ETHER_FIRST_MULTI(step, PDQ_FDDICOM(sc), enm); |
| 304 | while (enm != NULL && num_addrs > 0) { |
| 305 | if (memcmp(enm->enm_addrlo, enm->enm_addrhi, 6) == 0) { |
| 306 | ((u_short *) addr->lanaddr_bytes)[0] = ((u_short *) enm->enm_addrlo)[0]; |
| 307 | ((u_short *) addr->lanaddr_bytes)[1] = ((u_short *) enm->enm_addrlo)[1]; |
| 308 | ((u_short *) addr->lanaddr_bytes)[2] = ((u_short *) enm->enm_addrlo)[2]; |
| 309 | addr++; |
| 310 | num_addrs--; |
| 311 | } else { |
| 312 | pdq->pdq_flags |= PDQ_ALLMULTI; |
| 313 | #if defined(IFF_ALLMULTI) |
| 314 | sc->sc_if.if_flags |= IFF_ALLMULTI; |
| 315 | #endif |
| 316 | } |
| 317 | ETHER_NEXT_MULTI(step, enm); |
| 318 | } |
| 319 | /* |
| 320 | * If not all the address fit into the CAM, turn on all-multicast mode. |
| 321 | */ |
| 322 | if (enm != NULL) { |
| 323 | pdq->pdq_flags |= PDQ_ALLMULTI; |
| 324 | #if defined(IFF_ALLMULTI) |
| 325 | sc->sc_if.if_flags |= IFF_ALLMULTI; |
| 326 | #endif |
| 327 | } |
| 328 | } |
| 329 | |
| 330 | #if defined(IFM_FDDI) |
| 331 | static int |
| 332 | pdq_ifmedia_change( |
| 333 | struct ifnet *ifp) |
| 334 | { |
| 335 | pdq_softc_t * const sc = PDQ_OS_IFP_TO_SOFTC(ifp); |
| 336 | |
| 337 | if (sc->sc_ifmedia.ifm_media & IFM_FDX) { |
| 338 | if ((sc->sc_pdq->pdq_flags & PDQ_WANT_FDX) == 0) { |
| 339 | sc->sc_pdq->pdq_flags |= PDQ_WANT_FDX; |
| 340 | if (sc->sc_pdq->pdq_flags & PDQ_RUNNING) |
| 341 | pdq_run(sc->sc_pdq); |
| 342 | } |
| 343 | } else if (sc->sc_pdq->pdq_flags & PDQ_WANT_FDX) { |
| 344 | sc->sc_pdq->pdq_flags &= ~PDQ_WANT_FDX; |
| 345 | if (sc->sc_pdq->pdq_flags & PDQ_RUNNING) |
| 346 | pdq_run(sc->sc_pdq); |
| 347 | } |
| 348 | |
| 349 | return 0; |
| 350 | } |
| 351 | |
| 352 | static void |
| 353 | pdq_ifmedia_status( |
| 354 | struct ifnet *ifp, |
| 355 | struct ifmediareq *ifmr) |
| 356 | { |
| 357 | pdq_softc_t * const sc = PDQ_OS_IFP_TO_SOFTC(ifp); |
| 358 | |
| 359 | ifmr->ifm_status = IFM_AVALID; |
| 360 | if (sc->sc_pdq->pdq_flags & PDQ_IS_ONRING) |
| 361 | ifmr->ifm_status |= IFM_ACTIVE; |
| 362 | |
| 363 | ifmr->ifm_active = (ifmr->ifm_current & ~IFM_FDX); |
| 364 | if (sc->sc_pdq->pdq_flags & PDQ_IS_FDX) |
| 365 | ifmr->ifm_active |= IFM_FDX; |
| 366 | } |
| 367 | |
| 368 | void |
| 369 | pdq_os_update_status( |
| 370 | pdq_t *pdq, |
| 371 | const void *arg) |
| 372 | { |
| 373 | pdq_softc_t * const sc = pdq->pdq_os_ctx; |
| 374 | const pdq_response_status_chars_get_t *rsp = arg; |
| 375 | int media = 0; |
| 376 | |
| 377 | switch (rsp->status_chars_get.pmd_type[0]) { |
| 378 | case PDQ_PMD_TYPE_ANSI_MUTLI_MODE: media = IFM_FDDI_MMF; break; |
| 379 | case PDQ_PMD_TYPE_ANSI_SINGLE_MODE_TYPE_1: media = IFM_FDDI_SMF; break; |
| 380 | case PDQ_PMD_TYPE_ANSI_SIGNLE_MODE_TYPE_2: media = IFM_FDDI_SMF; break; |
| 381 | case PDQ_PMD_TYPE_UNSHIELDED_TWISTED_PAIR: media = IFM_FDDI_UTP; break; |
| 382 | default: media |= IFM_MANUAL; |
| 383 | } |
| 384 | |
| 385 | if (rsp->status_chars_get.station_type == PDQ_STATION_TYPE_DAS) |
| 386 | media |= IFM_FDDI_DA; |
| 387 | |
| 388 | sc->sc_ifmedia.ifm_media = media | IFM_FDDI; |
| 389 | } |
| 390 | #endif /* defined(IFM_FDDI) */ |
| 391 | |
| 392 | int |
| 393 | pdq_ifioctl( |
| 394 | struct ifnet *ifp, |
| 395 | ioctl_cmd_t cmd, |
| 396 | void *data) |
| 397 | { |
| 398 | pdq_softc_t *sc = PDQ_OS_IFP_TO_SOFTC(ifp); |
| 399 | int s, error = 0; |
| 400 | |
| 401 | s = PDQ_OS_SPL_RAISE(); |
| 402 | |
| 403 | switch (cmd) { |
| 404 | case SIOCINITIFADDR: { |
| 405 | struct ifaddr *ifa = (struct ifaddr *)data; |
| 406 | |
| 407 | ifp->if_flags |= IFF_UP; |
| 408 | pdq_ifinit(sc); |
| 409 | switch(ifa->ifa_addr->sa_family) { |
| 410 | #if defined(INET) |
| 411 | case AF_INET: |
| 412 | PDQ_ARP_IFINIT(sc, ifa); |
| 413 | break; |
| 414 | #endif /* INET */ |
| 415 | default: |
| 416 | break; |
| 417 | } |
| 418 | break; |
| 419 | } |
| 420 | case SIOCSIFFLAGS: { |
| 421 | if ((error = ifioctl_common(ifp, cmd, data)) != 0) |
| 422 | break; |
| 423 | pdq_ifinit(sc); |
| 424 | break; |
| 425 | } |
| 426 | |
| 427 | case SIOCADDMULTI: |
| 428 | case SIOCDELMULTI: { |
| 429 | /* |
| 430 | * Update multicast listeners |
| 431 | */ |
| 432 | if ((error = ether_ioctl(ifp, cmd, data)) == ENETRESET) { |
| 433 | if (sc->sc_if.if_flags & IFF_RUNNING) |
| 434 | pdq_run(sc->sc_pdq); |
| 435 | error = 0; |
| 436 | } |
| 437 | break; |
| 438 | } |
| 439 | |
| 440 | #if defined(SIOCSIFMTU) |
| 441 | #if !defined(ifr_mtu) |
| 442 | #define ifr_mtu ifr_metric |
| 443 | #endif |
| 444 | case SIOCSIFMTU: { |
| 445 | struct ifreq *ifr = (struct ifreq *)data; |
| 446 | /* |
| 447 | * Set the interface MTU. |
| 448 | */ |
| 449 | if (ifr->ifr_mtu > FDDIMTU) { |
| 450 | error = EINVAL; |
| 451 | break; |
| 452 | } |
| 453 | if ((error = ifioctl_common(ifp, cmd, data)) == ENETRESET) |
| 454 | error = 0; |
| 455 | break; |
| 456 | } |
| 457 | #endif /* SIOCSIFMTU */ |
| 458 | |
| 459 | #if defined(IFM_FDDI) && defined(SIOCSIFMEDIA) |
| 460 | case SIOCSIFMEDIA: |
| 461 | case SIOCGIFMEDIA: { |
| 462 | struct ifreq *ifr = (struct ifreq *)data; |
| 463 | error = ifmedia_ioctl(ifp, ifr, &sc->sc_ifmedia, cmd); |
| 464 | break; |
| 465 | } |
| 466 | #endif |
| 467 | |
| 468 | default: { |
| 469 | error = ether_ioctl(ifp, cmd, data); |
| 470 | break; |
| 471 | } |
| 472 | } |
| 473 | |
| 474 | PDQ_OS_SPL_LOWER(s); |
| 475 | return error; |
| 476 | } |
| 477 | |
| 478 | #ifndef IFF_NOTRAILERS |
| 479 | #define IFF_NOTRAILERS 0 |
| 480 | #endif |
| 481 | |
| 482 | void |
| 483 | pdq_ifattach( |
| 484 | pdq_softc_t *sc, |
| 485 | ifnet_ret_t (*ifwatchdog)(int unit)) |
| 486 | { |
| 487 | struct ifnet *ifp = &sc->sc_if; |
| 488 | |
| 489 | ifp->if_flags = IFF_BROADCAST|IFF_SIMPLEX|IFF_NOTRAILERS|IFF_MULTICAST; |
| 490 | |
| 491 | #if (defined(__FreeBSD__) && BSD >= 199506) || defined(__NetBSD__) |
| 492 | ifp->if_watchdog = pdq_ifwatchdog; |
| 493 | #else |
| 494 | ifp->if_watchdog = ifwatchdog; |
| 495 | #endif |
| 496 | |
| 497 | ifp->if_ioctl = pdq_ifioctl; |
| 498 | #if !defined(__NetBSD__) |
| 499 | ifp->if_output = fddi_output; |
| 500 | #endif |
| 501 | ifp->if_start = pdq_ifstart; |
| 502 | IFQ_SET_READY(&ifp->if_snd); |
| 503 | |
| 504 | #if defined(IFM_FDDI) |
| 505 | { |
| 506 | const int media = sc->sc_ifmedia.ifm_media; |
| 507 | ifmedia_init(&sc->sc_ifmedia, IFM_FDX, |
| 508 | pdq_ifmedia_change, pdq_ifmedia_status); |
| 509 | ifmedia_add(&sc->sc_ifmedia, media, 0, 0); |
| 510 | ifmedia_set(&sc->sc_ifmedia, media); |
| 511 | } |
| 512 | #endif |
| 513 | |
| 514 | if_attach(ifp); |
| 515 | #if defined(__NetBSD__) |
| 516 | fddi_ifattach(ifp, (void *)&sc->sc_pdq->pdq_hwaddr); |
| 517 | #else |
| 518 | fddi_ifattach(ifp); |
| 519 | #endif |
| 520 | } |
| 521 | |
| 522 | #if defined(PDQ_BUS_DMA) |
| 523 | int |
| 524 | pdq_os_memalloc_contig( |
| 525 | pdq_t *pdq) |
| 526 | { |
| 527 | pdq_softc_t * const sc = pdq->pdq_os_ctx; |
| 528 | bus_dma_segment_t db_segs[1], ui_segs[1], cb_segs[1]; |
| 529 | int db_nsegs = 0, ui_nsegs = 0; |
| 530 | int steps = 0; |
| 531 | int not_ok; |
| 532 | |
| 533 | not_ok = bus_dmamem_alloc(sc->sc_dmatag, |
| 534 | sizeof(*pdq->pdq_dbp), sizeof(*pdq->pdq_dbp), |
| 535 | sizeof(*pdq->pdq_dbp), db_segs, 1, &db_nsegs, |
| 536 | #if defined(__sparc__) || defined(__sparc64__) |
| 537 | BUS_DMA_NOWAIT | BUS_DMA_COHERENT); |
| 538 | #else |
| 539 | BUS_DMA_NOWAIT); |
| 540 | #endif |
| 541 | if (!not_ok) { |
| 542 | steps = 1; |
| 543 | not_ok = bus_dmamem_map(sc->sc_dmatag, db_segs, db_nsegs, |
| 544 | sizeof(*pdq->pdq_dbp), (void **) &pdq->pdq_dbp, |
| 545 | BUS_DMA_NOWAIT); |
| 546 | } |
| 547 | if (!not_ok) { |
| 548 | steps = 2; |
| 549 | not_ok = bus_dmamap_create(sc->sc_dmatag, db_segs[0].ds_len, 1, |
| 550 | 0x2000, 0, BUS_DMA_NOWAIT, &sc->sc_dbmap); |
| 551 | } |
| 552 | if (!not_ok) { |
| 553 | steps = 3; |
| 554 | not_ok = bus_dmamap_load(sc->sc_dmatag, sc->sc_dbmap, |
| 555 | pdq->pdq_dbp, sizeof(*pdq->pdq_dbp), |
| 556 | NULL, BUS_DMA_NOWAIT); |
| 557 | } |
| 558 | if (!not_ok) { |
| 559 | steps = 4; |
| 560 | pdq->pdq_pa_descriptor_block = sc->sc_dbmap->dm_segs[0].ds_addr; |
| 561 | not_ok = bus_dmamem_alloc(sc->sc_dmatag, |
| 562 | PDQ_OS_PAGESIZE, PDQ_OS_PAGESIZE, PDQ_OS_PAGESIZE, |
| 563 | ui_segs, 1, &ui_nsegs, BUS_DMA_NOWAIT); |
| 564 | } |
| 565 | if (!not_ok) { |
| 566 | steps = 5; |
| 567 | not_ok = bus_dmamem_map(sc->sc_dmatag, ui_segs, ui_nsegs, |
| 568 | PDQ_OS_PAGESIZE, |
| 569 | (void **) &pdq->pdq_unsolicited_info.ui_events, |
| 570 | BUS_DMA_NOWAIT); |
| 571 | } |
| 572 | if (!not_ok) { |
| 573 | steps = 6; |
| 574 | not_ok = bus_dmamap_create(sc->sc_dmatag, ui_segs[0].ds_len, 1, |
| 575 | PDQ_OS_PAGESIZE, 0, BUS_DMA_NOWAIT, |
| 576 | &sc->sc_uimap); |
| 577 | } |
| 578 | if (!not_ok) { |
| 579 | steps = 7; |
| 580 | not_ok = bus_dmamap_load(sc->sc_dmatag, sc->sc_uimap, |
| 581 | pdq->pdq_unsolicited_info.ui_events, |
| 582 | PDQ_OS_PAGESIZE, NULL, BUS_DMA_NOWAIT); |
| 583 | } |
| 584 | if (!not_ok) { |
| 585 | steps = 8; |
| 586 | pdq->pdq_unsolicited_info.ui_pa_bufstart = sc->sc_uimap->dm_segs[0].ds_addr; |
| 587 | cb_segs[0] = db_segs[0]; |
| 588 | cb_segs[0].ds_addr += offsetof(pdq_descriptor_block_t, pdqdb_consumer); |
| 589 | cb_segs[0].ds_len = sizeof(pdq_consumer_block_t); |
| 590 | #if defined(__sparc__) || defined(__sparc64__) |
| 591 | pdq->pdq_cbp = (pdq_consumer_block_t*)((unsigned long int)pdq->pdq_dbp + |
| 592 | (unsigned long int)offsetof(pdq_descriptor_block_t,pdqdb_consumer)); |
| 593 | #else |
| 594 | not_ok = bus_dmamem_map(sc->sc_dmatag, cb_segs, 1, |
| 595 | sizeof(*pdq->pdq_cbp), |
| 596 | (void **)&pdq->pdq_cbp, |
| 597 | BUS_DMA_NOWAIT|BUS_DMA_COHERENT); |
| 598 | #endif |
| 599 | } |
| 600 | if (!not_ok) { |
| 601 | steps = 9; |
| 602 | not_ok = bus_dmamap_create(sc->sc_dmatag, cb_segs[0].ds_len, 1, |
| 603 | 0x2000, 0, BUS_DMA_NOWAIT, &sc->sc_cbmap); |
| 604 | } |
| 605 | if (!not_ok) { |
| 606 | steps = 10; |
| 607 | not_ok = bus_dmamap_load(sc->sc_dmatag, sc->sc_cbmap, |
| 608 | pdq->pdq_cbp, sizeof(*pdq->pdq_cbp), |
| 609 | NULL, BUS_DMA_NOWAIT); |
| 610 | } |
| 611 | if (!not_ok) { |
| 612 | pdq->pdq_pa_consumer_block = sc->sc_cbmap->dm_segs[0].ds_addr; |
| 613 | return not_ok; |
| 614 | } |
| 615 | |
| 616 | switch (steps) { |
| 617 | case 11: { |
| 618 | bus_dmamap_unload(sc->sc_dmatag, sc->sc_cbmap); |
| 619 | /* FALL THROUGH */ |
| 620 | } |
| 621 | case 10: { |
| 622 | bus_dmamap_destroy(sc->sc_dmatag, sc->sc_cbmap); |
| 623 | /* FALL THROUGH */ |
| 624 | } |
| 625 | case 9: { |
| 626 | bus_dmamem_unmap(sc->sc_dmatag, |
| 627 | (void *)pdq->pdq_cbp, sizeof(*pdq->pdq_cbp)); |
| 628 | /* FALL THROUGH */ |
| 629 | } |
| 630 | case 8: { |
| 631 | bus_dmamap_unload(sc->sc_dmatag, sc->sc_uimap); |
| 632 | /* FALL THROUGH */ |
| 633 | } |
| 634 | case 7: { |
| 635 | bus_dmamap_destroy(sc->sc_dmatag, sc->sc_uimap); |
| 636 | /* FALL THROUGH */ |
| 637 | } |
| 638 | case 6: { |
| 639 | bus_dmamem_unmap(sc->sc_dmatag, |
| 640 | (void *) pdq->pdq_unsolicited_info.ui_events, |
| 641 | PDQ_OS_PAGESIZE); |
| 642 | /* FALL THROUGH */ |
| 643 | } |
| 644 | case 5: { |
| 645 | bus_dmamem_free(sc->sc_dmatag, ui_segs, ui_nsegs); |
| 646 | /* FALL THROUGH */ |
| 647 | } |
| 648 | case 4: { |
| 649 | bus_dmamap_unload(sc->sc_dmatag, sc->sc_dbmap); |
| 650 | /* FALL THROUGH */ |
| 651 | } |
| 652 | case 3: { |
| 653 | bus_dmamap_destroy(sc->sc_dmatag, sc->sc_dbmap); |
| 654 | /* FALL THROUGH */ |
| 655 | } |
| 656 | case 2: { |
| 657 | bus_dmamem_unmap(sc->sc_dmatag, |
| 658 | (void *) pdq->pdq_dbp, |
| 659 | sizeof(*pdq->pdq_dbp)); |
| 660 | /* FALL THROUGH */ |
| 661 | } |
| 662 | case 1: { |
| 663 | bus_dmamem_free(sc->sc_dmatag, db_segs, db_nsegs); |
| 664 | /* FALL THROUGH */ |
| 665 | } |
| 666 | } |
| 667 | |
| 668 | return not_ok; |
| 669 | } |
| 670 | |
| 671 | extern void |
| 672 | pdq_os_descriptor_block_sync( |
| 673 | pdq_os_ctx_t *sc, |
| 674 | size_t offset, |
| 675 | size_t length, |
| 676 | int ops) |
| 677 | { |
| 678 | bus_dmamap_sync(sc->sc_dmatag, sc->sc_dbmap, offset, length, ops); |
| 679 | } |
| 680 | |
| 681 | extern void |
| 682 | pdq_os_consumer_block_sync( |
| 683 | pdq_os_ctx_t *sc, |
| 684 | int ops) |
| 685 | { |
| 686 | bus_dmamap_sync(sc->sc_dmatag, sc->sc_cbmap, 0, sizeof(pdq_consumer_block_t), ops); |
| 687 | } |
| 688 | |
| 689 | extern void |
| 690 | pdq_os_unsolicited_event_sync( |
| 691 | pdq_os_ctx_t *sc, |
| 692 | size_t offset, |
| 693 | size_t length, |
| 694 | int ops) |
| 695 | { |
| 696 | bus_dmamap_sync(sc->sc_dmatag, sc->sc_uimap, offset, length, ops); |
| 697 | } |
| 698 | |
| 699 | extern void |
| 700 | pdq_os_databuf_sync( |
| 701 | pdq_os_ctx_t *sc, |
| 702 | struct mbuf *m, |
| 703 | size_t offset, |
| 704 | size_t length, |
| 705 | int ops) |
| 706 | { |
| 707 | bus_dmamap_sync(sc->sc_dmatag, M_GETCTX(m, bus_dmamap_t), offset, length, ops); |
| 708 | } |
| 709 | |
| 710 | extern void |
| 711 | pdq_os_databuf_free( |
| 712 | pdq_os_ctx_t *sc, |
| 713 | struct mbuf *m) |
| 714 | { |
| 715 | if (m->m_flags & (M_HASRXDMAMAP|M_HASTXDMAMAP)) { |
| 716 | bus_dmamap_t map = M_GETCTX(m, bus_dmamap_t); |
| 717 | bus_dmamap_unload(sc->sc_dmatag, map); |
| 718 | bus_dmamap_destroy(sc->sc_dmatag, map); |
| 719 | m->m_flags &= ~(M_HASRXDMAMAP|M_HASTXDMAMAP); |
| 720 | } |
| 721 | m_freem(m); |
| 722 | } |
| 723 | |
| 724 | extern struct mbuf * |
| 725 | pdq_os_databuf_alloc( |
| 726 | pdq_os_ctx_t *sc) |
| 727 | { |
| 728 | struct mbuf *m; |
| 729 | bus_dmamap_t map; |
| 730 | |
| 731 | MGETHDR(m, M_DONTWAIT, MT_DATA); |
| 732 | if (m == NULL) { |
| 733 | aprint_error_dev(sc->sc_dev, "can't alloc small buf\n" ); |
| 734 | return NULL; |
| 735 | } |
| 736 | MCLGET(m, M_DONTWAIT); |
| 737 | if ((m->m_flags & M_EXT) == 0) { |
| 738 | aprint_error_dev(sc->sc_dev, "can't alloc cluster\n" ); |
| 739 | m_free(m); |
| 740 | return NULL; |
| 741 | } |
| 742 | MCLAIM(m, &PDQ_FDDICOM(sc)->ec_rx_mowner); |
| 743 | m->m_pkthdr.len = m->m_len = PDQ_OS_DATABUF_SIZE; |
| 744 | |
| 745 | if (bus_dmamap_create(sc->sc_dmatag, PDQ_OS_DATABUF_SIZE, |
| 746 | 1, PDQ_OS_DATABUF_SIZE, 0, BUS_DMA_NOWAIT, &map)) { |
| 747 | aprint_error_dev(sc->sc_dev, "can't create dmamap\n" ); |
| 748 | m_free(m); |
| 749 | return NULL; |
| 750 | } |
| 751 | if (bus_dmamap_load_mbuf(sc->sc_dmatag, map, m, |
| 752 | BUS_DMA_READ|BUS_DMA_NOWAIT)) { |
| 753 | aprint_error_dev(sc->sc_dev, "can't load dmamap\n" ); |
| 754 | bus_dmamap_destroy(sc->sc_dmatag, map); |
| 755 | m_free(m); |
| 756 | return NULL; |
| 757 | } |
| 758 | m->m_flags |= M_HASRXDMAMAP; |
| 759 | M_SETCTX(m, map); |
| 760 | return m; |
| 761 | } |
| 762 | #endif |
| 763 | |