The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

FreeBSD/Linux Kernel Cross Reference
sys/dev/ic/am7990.c

Version: -  FREEBSD  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-2  -  FREEBSD-11-1  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-4  -  FREEBSD-10-3  -  FREEBSD-10-2  -  FREEBSD-10-1  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-3  -  FREEBSD-9-2  -  FREEBSD-9-1  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-4  -  FREEBSD-8-3  -  FREEBSD-8-2  -  FREEBSD-8-1  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-4  -  FREEBSD-7-3  -  FREEBSD-7-2  -  FREEBSD-7-1  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-4  -  FREEBSD-6-3  -  FREEBSD-6-2  -  FREEBSD-6-1  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-5  -  FREEBSD-5-4  -  FREEBSD-5-3  -  FREEBSD-5-2  -  FREEBSD-5-1  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  linux-2.6  -  linux-2.4.22  -  MK83  -  MK84  -  PLAN9  -  DFBSD  -  NETBSD  -  NETBSD5  -  NETBSD4  -  NETBSD3  -  NETBSD20  -  OPENBSD  -  xnu-517  -  xnu-792  -  xnu-792.6.70  -  xnu-1228  -  xnu-1456.1.26  -  xnu-1699.24.8  -  xnu-2050.18.24  -  OPENSOLARIS  -  minix-3-1-1 
SearchContext: -  none  -  3  -  10 

    1 /*      $NetBSD: am7990.c,v 1.73 2010/04/05 07:19:33 joerg Exp $        */
    2 
    3 /*-
    4  * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
    5  * All rights reserved.
    6  *
    7  * This code is derived from software contributed to The NetBSD Foundation
    8  * by Charles M. Hannum and by Jason R. Thorpe of the Numerical Aerospace
    9  * Simulation Facility, NASA Ames Research Center.
   10  *
   11  * Redistribution and use in source and binary forms, with or without
   12  * modification, are permitted provided that the following conditions
   13  * are met:
   14  * 1. Redistributions of source code must retain the above copyright
   15  *    notice, this list of conditions and the following disclaimer.
   16  * 2. Redistributions in binary form must reproduce the above copyright
   17  *    notice, this list of conditions and the following disclaimer in the
   18  *    documentation and/or other materials provided with the distribution.
   19  *
   20  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   21  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   22  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   23  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   30  * POSSIBILITY OF SUCH DAMAGE.
   31  */
   32 
   33 /*-
   34  * Copyright (c) 1992, 1993
   35  *      The Regents of the University of California.  All rights reserved.
   36  *
   37  * This code is derived from software contributed to Berkeley by
   38  * Ralph Campbell and Rick Macklem.
   39  *
   40  * Redistribution and use in source and binary forms, with or without
   41  * modification, are permitted provided that the following conditions
   42  * are met:
   43  * 1. Redistributions of source code must retain the above copyright
   44  *    notice, this list of conditions and the following disclaimer.
   45  * 2. Redistributions in binary form must reproduce the above copyright
   46  *    notice, this list of conditions and the following disclaimer in the
   47  *    documentation and/or other materials provided with the distribution.
   48  * 3. Neither the name of the University nor the names of its contributors
   49  *    may be used to endorse or promote products derived from this software
   50  *    without specific prior written permission.
   51  *
   52  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   53  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   54  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   55  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   56  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   57  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   58  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   59  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   60  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   61  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   62  * SUCH DAMAGE.
   63  *
   64  *      @(#)if_le.c     8.2 (Berkeley) 11/16/93
   65  */
   66 
   67 #include <sys/cdefs.h>
   68 __KERNEL_RCSID(0, "$NetBSD: am7990.c,v 1.73 2010/04/05 07:19:33 joerg Exp $");
   69 
   70 #include "rnd.h"
   71 
   72 #include <sys/param.h>
   73 #include <sys/systm.h>
   74 #include <sys/mbuf.h>
   75 #include <sys/syslog.h>
   76 #include <sys/socket.h>
   77 #include <sys/device.h>
   78 #include <sys/malloc.h>
   79 #include <sys/ioctl.h>
   80 #include <sys/errno.h>
   81 #if NRND > 0
   82 #include <sys/rnd.h>
   83 #endif
   84 
   85 #include <net/if.h>
   86 #include <net/if_dl.h>
   87 #include <net/if_ether.h>
   88 #include <net/if_media.h>
   89 
   90 #include <net/bpf.h>
   91 #include <net/bpfdesc.h>
   92 
   93 #include <dev/ic/lancereg.h>
   94 #include <dev/ic/lancevar.h>
   95 #include <dev/ic/am7990reg.h>
   96 #include <dev/ic/am7990var.h>
   97 
   98 static void     am7990_meminit(struct lance_softc *);
   99 static void     am7990_start(struct ifnet *);
  100 
  101 #if defined(_KERNEL_OPT)
  102 #include "opt_ddb.h"
  103 #endif
  104 
  105 #ifdef LEDEBUG
  106 static void     am7990_recv_print(struct lance_softc *, int);
  107 static void     am7990_xmit_print(struct lance_softc *, int);
  108 #endif
  109 
  110 #define ifp     (&sc->sc_ethercom.ec_if)
  111 
  112 void
  113 am7990_config(struct am7990_softc *sc)
  114 {
  115         int mem, i;
  116 
  117         sc->lsc.sc_meminit = am7990_meminit;
  118         sc->lsc.sc_start = am7990_start;
  119 
  120         lance_config(&sc->lsc);
  121 
  122         mem = 0;
  123         sc->lsc.sc_initaddr = mem;
  124         mem += sizeof(struct leinit);
  125         sc->lsc.sc_rmdaddr = mem;
  126         mem += sizeof(struct lermd) * sc->lsc.sc_nrbuf;
  127         sc->lsc.sc_tmdaddr = mem;
  128         mem += sizeof(struct letmd) * sc->lsc.sc_ntbuf;
  129         for (i = 0; i < sc->lsc.sc_nrbuf; i++, mem += LEBLEN)
  130                 sc->lsc.sc_rbufaddr[i] = mem;
  131         for (i = 0; i < sc->lsc.sc_ntbuf; i++, mem += LEBLEN)
  132                 sc->lsc.sc_tbufaddr[i] = mem;
  133 #ifdef notyet
  134         if (mem > ...)
  135                 panic(...);
  136 #endif
  137 }
  138 
  139 /*
  140  * Set up the initialization block and the descriptor rings.
  141  */
  142 static void
  143 am7990_meminit(struct lance_softc *sc)
  144 {
  145         u_long a;
  146         int bix;
  147         struct leinit init;
  148         struct lermd rmd;
  149         struct letmd tmd;
  150         uint8_t *myaddr;
  151 
  152         if (ifp->if_flags & IFF_PROMISC)
  153                 init.init_mode = LE_MODE_NORMAL | LE_MODE_PROM;
  154         else
  155                 init.init_mode = LE_MODE_NORMAL;
  156         if (sc->sc_initmodemedia == 1)
  157                 init.init_mode |= LE_MODE_PSEL0;
  158 
  159         /*
  160          * Update our private copy of the Ethernet address.
  161          * We NEED the copy so we can ensure its alignment!
  162          */
  163         memcpy(sc->sc_enaddr, CLLADDR(ifp->if_sadl), ETHER_ADDR_LEN);
  164         myaddr = sc->sc_enaddr;
  165 
  166         init.init_padr[0] = (myaddr[1] << 8) | myaddr[0];
  167         init.init_padr[1] = (myaddr[3] << 8) | myaddr[2];
  168         init.init_padr[2] = (myaddr[5] << 8) | myaddr[4];
  169         lance_setladrf(&sc->sc_ethercom, init.init_ladrf);
  170 
  171         sc->sc_last_rd = 0;
  172         sc->sc_first_td = sc->sc_last_td = sc->sc_no_td = 0;
  173 
  174         a = sc->sc_addr + LE_RMDADDR(sc, 0);
  175         init.init_rdra = a;
  176         init.init_rlen = (a >> 16) | ((ffs(sc->sc_nrbuf) - 1) << 13);
  177 
  178         a = sc->sc_addr + LE_TMDADDR(sc, 0);
  179         init.init_tdra = a;
  180         init.init_tlen = (a >> 16) | ((ffs(sc->sc_ntbuf) - 1) << 13);
  181 
  182         (*sc->sc_copytodesc)(sc, &init, LE_INITADDR(sc), sizeof(init));
  183 
  184         /*
  185          * Set up receive ring descriptors.
  186          */
  187         for (bix = 0; bix < sc->sc_nrbuf; bix++) {
  188                 a = sc->sc_addr + LE_RBUFADDR(sc, bix);
  189                 rmd.rmd0 = a;
  190                 rmd.rmd1_hadr = a >> 16;
  191                 rmd.rmd1_bits = LE_R1_OWN;
  192                 rmd.rmd2 = -LEBLEN | LE_XMD2_ONES;
  193                 rmd.rmd3 = 0;
  194                 (*sc->sc_copytodesc)(sc, &rmd, LE_RMDADDR(sc, bix),
  195                     sizeof(rmd));
  196         }
  197 
  198         /*
  199          * Set up transmit ring descriptors.
  200          */
  201         for (bix = 0; bix < sc->sc_ntbuf; bix++) {
  202                 a = sc->sc_addr + LE_TBUFADDR(sc, bix);
  203                 tmd.tmd0 = a;
  204                 tmd.tmd1_hadr = a >> 16;
  205                 tmd.tmd1_bits = 0;
  206                 tmd.tmd2 = 0 | LE_XMD2_ONES;
  207                 tmd.tmd3 = 0;
  208                 (*sc->sc_copytodesc)(sc, &tmd, LE_TMDADDR(sc, bix),
  209                     sizeof(tmd));
  210         }
  211 }
  212 
  213 static void
  214 am7990_rint(struct lance_softc *sc)
  215 {
  216         int bix;
  217         int rp;
  218         struct lermd rmd;
  219 
  220         bix = sc->sc_last_rd;
  221 
  222         /* Process all buffers with valid data. */
  223         for (;;) {
  224                 rp = LE_RMDADDR(sc, bix);
  225                 (*sc->sc_copyfromdesc)(sc, &rmd, rp, sizeof(rmd));
  226 
  227                 if (rmd.rmd1_bits & LE_R1_OWN)
  228                         break;
  229 
  230                 if (rmd.rmd1_bits & LE_R1_ERR) {
  231                         if (rmd.rmd1_bits & LE_R1_ENP) {
  232 #ifdef LEDEBUG
  233                                 if ((rmd.rmd1_bits & LE_R1_OFLO) == 0) {
  234                                         if (rmd.rmd1_bits & LE_R1_FRAM)
  235                                                 printf("%s: framing error\n",
  236                                                     device_xname(sc->sc_dev));
  237                                         if (rmd.rmd1_bits & LE_R1_CRC)
  238                                                 printf("%s: crc mismatch\n",
  239                                                     device_xname(sc->sc_dev));
  240                                 }
  241 #endif
  242                         } else {
  243                                 if (rmd.rmd1_bits & LE_R1_OFLO)
  244                                         printf("%s: overflow\n",
  245                                             device_xname(sc->sc_dev));
  246                         }
  247                         if (rmd.rmd1_bits & LE_R1_BUFF)
  248                                 printf("%s: receive buffer error\n",
  249                                     device_xname(sc->sc_dev));
  250                         ifp->if_ierrors++;
  251                 } else if ((rmd.rmd1_bits & (LE_R1_STP | LE_R1_ENP)) !=
  252                     (LE_R1_STP | LE_R1_ENP)) {
  253                         printf("%s: dropping chained buffer\n",
  254                             device_xname(sc->sc_dev));
  255                         ifp->if_ierrors++;
  256                 } else {
  257 #ifdef LEDEBUG
  258                         if (sc->sc_debug > 1)
  259                                 am7990_recv_print(sc, sc->sc_last_rd);
  260 #endif
  261                         lance_read(sc, LE_RBUFADDR(sc, bix),
  262                                    (int)rmd.rmd3 - 4);
  263                 }
  264 
  265                 rmd.rmd1_bits = LE_R1_OWN;
  266                 rmd.rmd2 = -LEBLEN | LE_XMD2_ONES;
  267                 rmd.rmd3 = 0;
  268                 (*sc->sc_copytodesc)(sc, &rmd, rp, sizeof(rmd));
  269 
  270 #ifdef LEDEBUG
  271                 if (sc->sc_debug)
  272                         printf("sc->sc_last_rd = %x, rmd: "
  273                                "ladr %04x, hadr %02x, flags %02x, "
  274                                "bcnt %04x, mcnt %04x\n",
  275                                 sc->sc_last_rd,
  276                                 rmd.rmd0, rmd.rmd1_hadr, rmd.rmd1_bits,
  277                                 rmd.rmd2, rmd.rmd3);
  278 #endif
  279 
  280                 if (++bix == sc->sc_nrbuf)
  281                         bix = 0;
  282         }
  283 
  284         sc->sc_last_rd = bix;
  285 }
  286 
  287 static void
  288 am7990_tint(struct lance_softc *sc)
  289 {
  290         int bix;
  291         struct letmd tmd;
  292 
  293         bix = sc->sc_first_td;
  294 
  295         for (;;) {
  296                 if (sc->sc_no_td <= 0)
  297                         break;
  298 
  299                 (*sc->sc_copyfromdesc)(sc, &tmd, LE_TMDADDR(sc, bix),
  300                     sizeof(tmd));
  301 
  302 #ifdef LEDEBUG
  303                 if (sc->sc_debug)
  304                         printf("trans tmd: "
  305                             "ladr %04x, hadr %02x, flags %02x, "
  306                             "bcnt %04x, mcnt %04x\n",
  307                             tmd.tmd0, tmd.tmd1_hadr, tmd.tmd1_bits,
  308                             tmd.tmd2, tmd.tmd3);
  309 #endif
  310 
  311                 if (tmd.tmd1_bits & LE_T1_OWN)
  312                         break;
  313 
  314                 ifp->if_flags &= ~IFF_OACTIVE;
  315 
  316                 if (tmd.tmd1_bits & LE_T1_ERR) {
  317                         if (tmd.tmd3 & LE_T3_BUFF)
  318                                 printf("%s: transmit buffer error\n",
  319                                     device_xname(sc->sc_dev));
  320                         else if (tmd.tmd3 & LE_T3_UFLO)
  321                                 printf("%s: underflow\n",
  322                                     device_xname(sc->sc_dev));
  323                         if (tmd.tmd3 & (LE_T3_BUFF | LE_T3_UFLO)) {
  324                                 lance_reset(sc);
  325                                 return;
  326                         }
  327                         if (tmd.tmd3 & LE_T3_LCAR) {
  328                                 sc->sc_havecarrier = 0;
  329                                 if (sc->sc_nocarrier)
  330                                         (*sc->sc_nocarrier)(sc);
  331                                 else
  332                                         printf("%s: lost carrier\n",
  333                                             device_xname(sc->sc_dev));
  334                         }
  335                         if (tmd.tmd3 & LE_T3_LCOL)
  336                                 ifp->if_collisions++;
  337                         if (tmd.tmd3 & LE_T3_RTRY) {
  338 #ifdef LEDEBUG
  339                                 printf("%s: excessive collisions, tdr %d\n",
  340                                     device_xname(sc->sc_dev),
  341                                     tmd.tmd3 & LE_T3_TDR_MASK);
  342 #endif
  343                                 ifp->if_collisions += 16;
  344                         }
  345                         ifp->if_oerrors++;
  346                 } else {
  347                         if (tmd.tmd1_bits & LE_T1_ONE)
  348                                 ifp->if_collisions++;
  349                         else if (tmd.tmd1_bits & LE_T1_MORE)
  350                                 /* Real number is unknown. */
  351                                 ifp->if_collisions += 2;
  352                         ifp->if_opackets++;
  353                 }
  354 
  355                 if (++bix == sc->sc_ntbuf)
  356                         bix = 0;
  357 
  358                 --sc->sc_no_td;
  359         }
  360 
  361         sc->sc_first_td = bix;
  362 
  363         am7990_start(ifp);
  364 
  365         if (sc->sc_no_td == 0)
  366                 ifp->if_timer = 0;
  367 }
  368 
  369 /*
  370  * Controller interrupt.
  371  */
  372 int
  373 am7990_intr(void *arg)
  374 {
  375         struct lance_softc *sc = arg;
  376         uint16_t isr;
  377 
  378         isr = (*sc->sc_rdcsr)(sc, LE_CSR0) | sc->sc_saved_csr0;
  379         sc->sc_saved_csr0 = 0;
  380 #if defined(LEDEBUG) && LEDEBUG > 1
  381         if (sc->sc_debug)
  382                 printf("%s: am7990_intr entering with isr=%04x\n",
  383                     device_xname(sc->sc_dev), isr);
  384 #endif
  385         if ((isr & LE_C0_INTR) == 0)
  386                 return (0);
  387 
  388 #ifdef __vax__
  389         /*
  390          * DEC needs this write order to the registers, don't know
  391          * the results on other arch's.  Ragge 991029
  392          */
  393         isr &= ~LE_C0_INEA;
  394         (*sc->sc_wrcsr)(sc, LE_CSR0, isr);
  395         (*sc->sc_wrcsr)(sc, LE_CSR0, LE_C0_INEA);
  396 #else
  397         (*sc->sc_wrcsr)(sc, LE_CSR0,
  398             isr & (LE_C0_INEA | LE_C0_BABL | LE_C0_MISS | LE_C0_MERR |
  399                    LE_C0_RINT | LE_C0_TINT | LE_C0_IDON));
  400 #endif
  401         if (isr & LE_C0_ERR) {
  402                 if (isr & LE_C0_BABL) {
  403 #ifdef LEDEBUG
  404                         printf("%s: babble\n", device_xname(sc->sc_dev));
  405 #endif
  406                         ifp->if_oerrors++;
  407                 }
  408 #if 0
  409                 if (isr & LE_C0_CERR) {
  410                         printf("%s: collision error\n",
  411                             device_xname(sc->sc_dev));
  412                         ifp->if_collisions++;
  413                 }
  414 #endif
  415                 if (isr & LE_C0_MISS) {
  416 #ifdef LEDEBUG
  417                         printf("%s: missed packet\n", device_xname(sc->sc_dev));
  418 #endif
  419                         ifp->if_ierrors++;
  420                 }
  421                 if (isr & LE_C0_MERR) {
  422                         printf("%s: memory error\n", device_xname(sc->sc_dev));
  423                         lance_reset(sc);
  424                         return (1);
  425                 }
  426         }
  427 
  428         if ((isr & LE_C0_RXON) == 0) {
  429                 printf("%s: receiver disabled\n", device_xname(sc->sc_dev));
  430                 ifp->if_ierrors++;
  431                 lance_reset(sc);
  432                 return (1);
  433         }
  434         if ((isr & LE_C0_TXON) == 0) {
  435                 printf("%s: transmitter disabled\n", device_xname(sc->sc_dev));
  436                 ifp->if_oerrors++;
  437                 lance_reset(sc);
  438                 return (1);
  439         }
  440 
  441         /*
  442          * Pretend we have carrier; if we don't this will be cleared
  443          * shortly.
  444          */
  445         sc->sc_havecarrier = 1;
  446 
  447         if (isr & LE_C0_RINT)
  448                 am7990_rint(sc);
  449         if (isr & LE_C0_TINT)
  450                 am7990_tint(sc);
  451 
  452 #if NRND > 0
  453         rnd_add_uint32(&sc->rnd_source, isr);
  454 #endif
  455 
  456         return (1);
  457 }
  458 
  459 #undef ifp
  460 
  461 /*
  462  * Setup output on interface.
  463  * Get another datagram to send off of the interface queue, and map it to the
  464  * interface before starting the output.
  465  * Called only at splnet or interrupt level.
  466  */
  467 static void
  468 am7990_start(struct ifnet *ifp)
  469 {
  470         struct lance_softc *sc = ifp->if_softc;
  471         int bix;
  472         struct mbuf *m;
  473         struct letmd tmd;
  474         int rp;
  475         int len;
  476 
  477         if ((ifp->if_flags & (IFF_RUNNING | IFF_OACTIVE)) != IFF_RUNNING)
  478                 return;
  479 
  480         bix = sc->sc_last_td;
  481 
  482         for (;;) {
  483                 rp = LE_TMDADDR(sc, bix);
  484                 (*sc->sc_copyfromdesc)(sc, &tmd, rp, sizeof(tmd));
  485 
  486                 if (tmd.tmd1_bits & LE_T1_OWN) {
  487                         ifp->if_flags |= IFF_OACTIVE;
  488                         printf("missing buffer, no_td = %d, last_td = %d\n",
  489                             sc->sc_no_td, sc->sc_last_td);
  490                 }
  491 
  492                 IFQ_DEQUEUE(&ifp->if_snd, m);
  493                 if (m == 0)
  494                         break;
  495 
  496                 /*
  497                  * If BPF is listening on this interface, let it see the packet
  498                  * before we commit it to the wire.
  499                  */
  500                 bpf_mtap(ifp, m);
  501 
  502                 /*
  503                  * Copy the mbuf chain into the transmit buffer.
  504                  */
  505                 len = lance_put(sc, LE_TBUFADDR(sc, bix), m);
  506 
  507 #ifdef LEDEBUG
  508                 if (len > ETHERMTU + sizeof(struct ether_header))
  509                         printf("packet length %d\n", len);
  510 #endif
  511 
  512                 ifp->if_timer = 5;
  513 
  514                 /*
  515                  * Init transmit registers, and set transmit start flag.
  516                  */
  517                 tmd.tmd1_bits = LE_T1_OWN | LE_T1_STP | LE_T1_ENP;
  518                 tmd.tmd2 = -len | LE_XMD2_ONES;
  519                 tmd.tmd3 = 0;
  520 
  521                 (*sc->sc_copytodesc)(sc, &tmd, rp, sizeof(tmd));
  522 
  523 #ifdef LEDEBUG
  524                 if (sc->sc_debug > 1)
  525                         am7990_xmit_print(sc, sc->sc_last_td);
  526 #endif
  527 
  528                 (*sc->sc_wrcsr)(sc, LE_CSR0, LE_C0_INEA | LE_C0_TDMD);
  529 
  530                 if (++bix == sc->sc_ntbuf)
  531                         bix = 0;
  532 
  533                 if (++sc->sc_no_td == sc->sc_ntbuf) {
  534                         ifp->if_flags |= IFF_OACTIVE;
  535                         break;
  536                 }
  537 
  538         }
  539 
  540         sc->sc_last_td = bix;
  541 }
  542 
  543 #ifdef LEDEBUG
  544 static void
  545 am7990_recv_print(struct lance_softc *sc, int no)
  546 {
  547         struct lermd rmd;
  548         uint16_t len;
  549         struct ether_header eh;
  550 
  551         (*sc->sc_copyfromdesc)(sc, &rmd, LE_RMDADDR(sc, no), sizeof(rmd));
  552         len = rmd.rmd3;
  553         printf("%s: receive buffer %d, len = %d\n",
  554             device_xname(sc->sc_dev), no, len);
  555         printf("%s: status %04x\n", device_xname(sc->sc_dev),
  556             (*sc->sc_rdcsr)(sc, LE_CSR0));
  557         printf("%s: ladr %04x, hadr %02x, flags %02x, bcnt %04x, mcnt %04x\n",
  558             device_xname(sc->sc_dev),
  559             rmd.rmd0, rmd.rmd1_hadr, rmd.rmd1_bits, rmd.rmd2, rmd.rmd3);
  560         if (len >= sizeof(eh)) {
  561                 (*sc->sc_copyfrombuf)(sc, &eh, LE_RBUFADDR(sc, no), sizeof(eh));
  562                 printf("%s: dst %s", device_xname(sc->sc_dev),
  563                         ether_sprintf(eh.ether_dhost));
  564                 printf(" src %s type %04x\n", ether_sprintf(eh.ether_shost),
  565                         ntohs(eh.ether_type));
  566         }
  567 }
  568 
  569 static void
  570 am7990_xmit_print(struct lance_softc *sc, int no)
  571 {
  572         struct letmd tmd;
  573         uint16_t len;
  574         struct ether_header eh;
  575 
  576         (*sc->sc_copyfromdesc)(sc, &tmd, LE_TMDADDR(sc, no), sizeof(tmd));
  577         len = -tmd.tmd2;
  578         printf("%s: transmit buffer %d, len = %d\n",
  579             device_xname(sc->sc_dev), no, len);
  580         printf("%s: status %04x\n", device_xname(sc->sc_dev),
  581             (*sc->sc_rdcsr)(sc, LE_CSR0));
  582         printf("%s: ladr %04x, hadr %02x, flags %02x, bcnt %04x, mcnt %04x\n",
  583             device_xname(sc->sc_dev),
  584             tmd.tmd0, tmd.tmd1_hadr, tmd.tmd1_bits, tmd.tmd2, tmd.tmd3);
  585         if (len >= sizeof(eh)) {
  586                 (*sc->sc_copyfrombuf)(sc, &eh, LE_TBUFADDR(sc, no), sizeof(eh));
  587                 printf("%s: dst %s", device_xname(sc->sc_dev),
  588                         ether_sprintf(eh.ether_dhost));
  589                 printf(" src %s type %04x\n", ether_sprintf(eh.ether_shost),
  590                     ntohs(eh.ether_type));
  591         }
  592 }
  593 #endif /* LEDEBUG */

Cache object: 4169af9c01c58a6aee2ecf6cfda3c025


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]


This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.