fb5831565c
type to be int so that errors can be returned. 2) Use the new SIOCSIFMTU ether_ioctl support in the few drivers that are using ether_ioctl(). 3) In if_fxp.c: treat if_bpf as a token, not as a pointer. Don't bother testing for FXP_NTXSEG being reached in fxp_start()...just check for non-NULL 'm'. Change fxp_ioctl() to use ether_ioctl().
809 lines
18 KiB
C
809 lines
18 KiB
C
/*
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* Copyright (c) 1993 Dean Huxley <dean@fsa.ca>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Dean Huxley.
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* 4. The name of Dean Huxley may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $Id: if_eg.c,v 1.19 1996/10/30 08:50:26 phk Exp $
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*
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* Support for 3Com 3c505 Etherlink+ card.
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*/
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/* To do:
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* - multicast
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* - promiscuous
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*/
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#include "eg.h"
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#include "bpfilter.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/conf.h>
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#include <sys/errno.h>
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#include <sys/ioctl.h>
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#include <sys/mbuf.h>
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#include <sys/socket.h>
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#include <sys/syslog.h>
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#include <net/if.h>
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#include <net/if_dl.h>
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#include <net/if_types.h>
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#ifdef INET
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#include <netinet/in.h>
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#include <netinet/in_systm.h>
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#include <netinet/in_var.h>
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#include <netinet/ip.h>
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#include <netinet/if_ether.h>
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#endif
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#ifdef IPX
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#include <netipx/ipx.h>
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#include <netipx/ipx_if.h>
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#endif
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#ifdef NS
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#include <netns/ns.h>
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#include <netns/ns_if.h>
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#endif
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#if NBPFILTER > 0
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#include <net/bpf.h>
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#include <net/bpfdesc.h>
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#endif
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#include <machine/clock.h>
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#include <i386/isa/isa_device.h>
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#include <i386/isa/if_egreg.h>
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/* for debugging convenience */
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#ifdef EGDEBUG
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#define dprintf(x) printf x
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#else
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#define dprintf(x)
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#endif
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#define EG_INLEN 10
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#define EG_BUFLEN 0x0670
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/*
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* Ethernet software status per interface.
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*/
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static struct eg_softc {
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struct arpcom sc_arpcom; /* Ethernet common part */
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int eg_cmd; /* Command register R/W */
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int eg_ctl; /* Control register R/W (EG_CTL_*) */
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int eg_stat; /* Status register R/O (EG_STAT_*) */
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int eg_data; /* Data register R/W (16 bits) */
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u_char eg_rom_major; /* Cards ROM version (major number) */
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u_char eg_rom_minor; /* Cards ROM version (minor number) */
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short eg_ram; /* Amount of RAM on the card */
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u_char eg_pcb[64]; /* Primary Command Block buffer */
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u_char eg_incount; /* Number of buffers currently used */
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u_char *eg_inbuf; /* Incoming packet buffer */
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u_char *eg_outbuf; /* Outgoing packet buffer */
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} eg_softc[NEG];
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static int egprobe (struct isa_device *);
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static int egattach (struct isa_device *);
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struct isa_driver egdriver = {
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egprobe, egattach, "eg", 0
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};
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static void egprintpcb __P((struct eg_softc *sc));
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static void egprintstat __P((int b));
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static int egoutPCB __P((struct eg_softc *sc, int b));
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static int egreadPCBstat __P((struct eg_softc *sc, int statb));
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static int egreadPCBready __P((struct eg_softc *sc));
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static int egwritePCB __P((struct eg_softc *sc));
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static int egreadPCB __P((struct eg_softc *sc));
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static void eginit __P((struct eg_softc *sc));
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static int egioctl (struct ifnet *, int, caddr_t);
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static void egrecv(struct eg_softc *);
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static void egstart(struct ifnet *);
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static void egread __P((struct eg_softc *, caddr_t, int));
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static void egstop __P((struct eg_softc *));
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static void egwatchdog __P((struct ifnet *));
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static void egreset __P((struct eg_softc *));
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static struct mbuf *egget __P((struct eg_softc *, caddr_t, int));
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/*
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* Support stuff
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*/
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static void
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egprintpcb(sc)
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struct eg_softc *sc;
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{
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int i;
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for (i = 0; i < sc->eg_pcb[1] + 2; i++)
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dprintf(("eg#: pcb[%2d] = %x\n", i, sc->eg_pcb[i]));
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}
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static void
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egprintstat(b)
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u_char b;
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{
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dprintf(("eg#: %s %s %s %s %s %s %s\n",
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(b & EG_STAT_HCRE)?"HCRE":"",
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(b & EG_STAT_ACRF)?"ACRF":"",
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(b & EG_STAT_DIR )?"DIR ":"",
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(b & EG_STAT_DONE)?"DONE":"",
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(b & EG_STAT_ASF3)?"ASF3":"",
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(b & EG_STAT_ASF2)?"ASF2":"",
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(b & EG_STAT_ASF1)?"ASF1":""));
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}
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static int
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egoutPCB(sc, b)
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struct eg_softc *sc;
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u_char b;
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{
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int i;
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for (i=0; i < 4000; i++) {
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if (inb(sc->eg_stat) & EG_STAT_HCRE) {
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outb(sc->eg_cmd, b);
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return 0;
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}
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DELAY(10);
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}
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dprintf(("eg#: egoutPCB failed\n"));
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return 1;
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}
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static int
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egreadPCBstat(sc, statb)
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struct eg_softc *sc;
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u_char statb;
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{
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int i;
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for (i=0; i < 5000; i++) {
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if ((inb(sc->eg_stat) & EG_PCB_STAT) != EG_PCB_NULL)
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break;
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DELAY(10);
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}
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if ((inb(sc->eg_stat) & EG_PCB_STAT) == statb)
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return 0;
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return 1;
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}
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static int
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egreadPCBready(sc)
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struct eg_softc *sc;
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{
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int i;
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for (i=0; i < 10000; i++) {
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if (inb(sc->eg_stat) & EG_STAT_ACRF)
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return 0;
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DELAY(5);
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}
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dprintf(("eg#: PCB read not ready\n"));
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return 1;
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}
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static int
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egwritePCB(sc)
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struct eg_softc *sc;
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{
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int i;
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u_char len;
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outb(sc->eg_ctl, (inb(sc->eg_ctl) & ~EG_PCB_STAT) | EG_PCB_NULL);
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len = sc->eg_pcb[1] + 2;
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for (i = 0; i < len; i++)
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egoutPCB(sc, sc->eg_pcb[i]);
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for (i=0; i < 4000; i++) {
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if (inb(sc->eg_stat) & EG_STAT_HCRE)
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break;
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DELAY(10);
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}
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outb(sc->eg_ctl, (inb(sc->eg_ctl) & ~EG_PCB_STAT) | EG_PCB_DONE);
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egoutPCB(sc, len);
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if (egreadPCBstat(sc, EG_PCB_ACCEPT))
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return 1;
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return 0;
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}
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static int
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egreadPCB(sc)
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struct eg_softc *sc;
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{
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int i;
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u_char b;
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outb(sc->eg_ctl, (inb(sc->eg_ctl) & ~EG_PCB_STAT) | EG_PCB_NULL);
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bzero(sc->eg_pcb, sizeof(sc->eg_pcb));
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if (egreadPCBready(sc))
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return 1;
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sc->eg_pcb[0] = inb(sc->eg_cmd);
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if (egreadPCBready(sc))
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return 1;
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sc->eg_pcb[1] = inb(sc->eg_cmd);
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if (sc->eg_pcb[1] > 62) {
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dprintf(("eg#: len %d too large\n", sc->eg_pcb[1]));
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return 1;
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}
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for (i = 0; i < sc->eg_pcb[1]; i++) {
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if (egreadPCBready(sc))
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return 1;
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sc->eg_pcb[2+i] = inb(sc->eg_cmd);
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}
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if (egreadPCBready(sc))
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return 1;
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if (egreadPCBstat(sc, EG_PCB_DONE))
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return 1;
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if ((b = inb(sc->eg_cmd)) != sc->eg_pcb[1] + 2) {
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dprintf(("eg#: %d != %d\n", b, sc->eg_pcb[1] + 2));
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return 1;
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}
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outb(sc->eg_ctl, (inb(sc->eg_ctl) & ~EG_PCB_STAT) | EG_PCB_ACCEPT);
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return 0;
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}
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/*
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* Real stuff
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*/
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static int
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egprobe(struct isa_device * id)
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{
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struct eg_softc *sc = &eg_softc[id->id_unit];
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int i;
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if (id->id_iobase & ~0x07f0 != 0) {
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dprintf(("eg#: Weird iobase %x\n", ia->ia_iobase));
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return 0;
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}
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sc->eg_cmd = id->id_iobase + EG_COMMAND;
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sc->eg_ctl = id->id_iobase + EG_CONTROL;
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sc->eg_stat = id->id_iobase + EG_STATUS;
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sc->eg_data = id->id_iobase + EG_DATA;
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/* hard reset card */
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outb(sc->eg_ctl, EG_CTL_RESET);
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outb(sc->eg_ctl, 0);
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for (i = 0; i < 1600; i++) {
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DELAY(10000);
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if ((inb(sc->eg_stat) & EG_PCB_STAT) == EG_PCB_NULL)
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break;
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}
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if ((inb(sc->eg_stat) & EG_PCB_STAT) != EG_PCB_NULL) {
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dprintf(("eg#: eg: Reset failed\n"));
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return 0;
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}
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sc->eg_pcb[0] = EG_CMD_GETINFO; /* Get Adapter Info */
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sc->eg_pcb[1] = 0;
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if (egwritePCB(sc) != 0)
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return 0;
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if (egreadPCB(sc) != 0) {
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egprintpcb(sc);
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return 0;
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}
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if (sc->eg_pcb[0] != EG_RSP_GETINFO || /* Get Adapter Info Response */
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sc->eg_pcb[1] != 0x0a) {
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egprintpcb(sc);
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return 0;
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}
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sc->eg_rom_major = sc->eg_pcb[3];
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sc->eg_rom_minor = sc->eg_pcb[2];
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sc->eg_ram = sc->eg_pcb[6] | (sc->eg_pcb[7] << 8);
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return 8;
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}
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static int
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egattach(struct isa_device *id)
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{
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struct eg_softc *sc = &eg_softc[id->id_unit];
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struct ifnet *ifp = &sc->sc_arpcom.ac_if;
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egstop(sc);
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sc->eg_pcb[0] = EG_CMD_GETEADDR; /* Get Station address */
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sc->eg_pcb[1] = 0;
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if (egwritePCB(sc) != 0) {
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dprintf(("eg#: write error\n"));
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return 0;
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}
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if (egreadPCB(sc) != 0) {
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dprintf(("eg#: read error\n"));
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egprintpcb(sc);
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return 0;
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}
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/* check Get station address response */
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if (sc->eg_pcb[0] != EG_RSP_GETEADDR || sc->eg_pcb[1] != 0x06) {
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dprintf(("eg#: parse error\n"));
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egprintpcb(sc);
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return 0;
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}
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bcopy(&sc->eg_pcb[2], sc->sc_arpcom.ac_enaddr, ETHER_ADDR_LEN);
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printf("eg%d: address %6D, type=3COM 3c505 (v%d.%02d, %dk)\n",
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id->id_unit, sc->sc_arpcom.ac_enaddr, ":",
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sc->eg_rom_major, sc->eg_rom_minor, sc->eg_ram);
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sc->eg_pcb[0] = EG_CMD_SETEADDR; /* Set station address */
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if (egwritePCB(sc) != 0) {
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dprintf(("eg#: write error2\n"));
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return 0;
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}
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if (egreadPCB(sc) != 0) {
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dprintf(("eg#: read error2\n"));
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egprintpcb(sc);
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return 0;
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}
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if (sc->eg_pcb[0] != EG_RSP_SETEADDR || sc->eg_pcb[1] != 0x02 ||
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sc->eg_pcb[2] != 0 || sc->eg_pcb[3] != 0) {
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dprintf(("eg#: parse error2\n"));
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egprintpcb(sc);
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return 0;
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}
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/* Initialize ifnet structure. */
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ifp->if_softc = sc;
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ifp->if_unit = id->id_unit;
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ifp->if_name = "eg";
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ifp->if_output = ether_output;
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ifp->if_start = egstart;
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ifp->if_ioctl = egioctl;
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ifp->if_init = (if_init_f_t*)eginit;
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ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX;
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ifp->if_watchdog = egwatchdog;
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/* Now we can attach the interface. */
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if_attach(ifp);
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ether_ifattach(ifp);
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#if NBPFILTER > 0
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bpfattach(ifp, DLT_EN10MB, sizeof(struct ether_header));
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#endif
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return 1;
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}
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static void
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eginit(struct eg_softc *sc)
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{
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struct ifnet *ifp = &sc->sc_arpcom.ac_if;
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/* soft reset the board */
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outb(sc->eg_ctl, EG_CTL_FLSH);
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DELAY(100);
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outb(sc->eg_ctl, EG_CTL_ATTN);
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DELAY(100);
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outb(sc->eg_ctl, 0);
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DELAY(200);
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sc->eg_pcb[0] = EG_CMD_CONFIG82586; /* Configure 82586 */
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sc->eg_pcb[1] = 2;
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sc->eg_pcb[2] = 3; /* receive broadcast & multicast */
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sc->eg_pcb[3] = 0;
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#ifdef EGDEBUG
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if (egwritePCB(sc) != 0)
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dprintf(("eg#: write error3\n"));
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#endif
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if (egreadPCB(sc) != 0) {
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dprintf(("eg#: read error\n"));
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egprintpcb(sc);
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} else if (sc->eg_pcb[2] != 0 || sc->eg_pcb[3] != 0)
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printf("eg%d: configure card command failed\n", ifp->if_unit);
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if (sc->eg_inbuf == NULL)
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sc->eg_inbuf = malloc(EG_BUFLEN, M_TEMP, M_NOWAIT);
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sc->eg_incount = 0;
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if (sc->eg_outbuf == NULL)
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sc->eg_outbuf = malloc(EG_BUFLEN, M_TEMP, M_NOWAIT);
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outb(sc->eg_ctl, EG_CTL_CMDE);
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sc->eg_incount = 0;
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egrecv(sc);
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/* Interface is now `running', with no output active. */
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ifp->if_flags |= IFF_RUNNING;
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ifp->if_flags &= ~IFF_OACTIVE;
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/* Attempt to start output, if any. */
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egstart(ifp);
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}
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static void
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egrecv(sc)
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struct eg_softc *sc;
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{
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while (sc->eg_incount < EG_INLEN) {
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sc->eg_pcb[0] = EG_CMD_RECVPACKET;
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sc->eg_pcb[1] = 0x08;
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sc->eg_pcb[2] = 0; /* address not used.. we send zero */
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sc->eg_pcb[3] = 0;
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sc->eg_pcb[4] = 0;
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sc->eg_pcb[5] = 0;
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sc->eg_pcb[6] = EG_BUFLEN & 0xff; /* our buffer size */
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sc->eg_pcb[7] = (EG_BUFLEN >> 8) & 0xff;
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sc->eg_pcb[8] = 0; /* timeout, 0 == none */
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sc->eg_pcb[9] = 0;
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if (egwritePCB(sc) != 0)
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break;
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sc->eg_incount++;
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}
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}
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static void
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egstart(ifp)
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struct ifnet *ifp;
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{
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register struct eg_softc *sc = ifp->if_softc;
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struct mbuf *m0, *m;
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caddr_t buffer;
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int len;
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u_short *ptr;
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|
|
/* Don't transmit if interface is busy or not running */
|
|
if ((ifp->if_flags & (IFF_RUNNING|IFF_OACTIVE)) != IFF_RUNNING)
|
|
return;
|
|
|
|
loop:
|
|
/* Dequeue the next datagram. */
|
|
IF_DEQUEUE(&ifp->if_snd, m0);
|
|
if (m0 == 0)
|
|
return;
|
|
|
|
ifp->if_flags |= IFF_OACTIVE;
|
|
|
|
/* We need to use m->m_pkthdr.len, so require the header */
|
|
if ((m0->m_flags & M_PKTHDR) == 0)
|
|
panic("egstart: no header mbuf");
|
|
len = max(m0->m_pkthdr.len, ETHER_MIN_LEN);
|
|
|
|
#if NBPFILTER > 0
|
|
if (ifp->if_bpf)
|
|
bpf_mtap(ifp, m0);
|
|
#endif
|
|
|
|
sc->eg_pcb[0] = EG_CMD_SENDPACKET;
|
|
sc->eg_pcb[1] = 0x06;
|
|
sc->eg_pcb[2] = 0; /* address not used, we send zero */
|
|
sc->eg_pcb[3] = 0;
|
|
sc->eg_pcb[4] = 0;
|
|
sc->eg_pcb[5] = 0;
|
|
sc->eg_pcb[6] = len; /* length of packet */
|
|
sc->eg_pcb[7] = len >> 8;
|
|
if (egwritePCB(sc) != 0) {
|
|
dprintf(("eg#: egwritePCB in egstart failed\n"));
|
|
ifp->if_oerrors++;
|
|
ifp->if_flags &= ~IFF_OACTIVE;
|
|
goto loop;
|
|
}
|
|
|
|
buffer = sc->eg_outbuf;
|
|
for (m = m0; m != 0; m = m->m_next) {
|
|
bcopy(mtod(m, caddr_t), buffer, m->m_len);
|
|
buffer += m->m_len;
|
|
}
|
|
|
|
/* set direction bit: host -> adapter */
|
|
outb(sc->eg_ctl, inb(sc->eg_ctl) & ~EG_CTL_DIR);
|
|
|
|
for (ptr = (u_short *) sc->eg_outbuf; len > 0; len -= 2) {
|
|
outw(sc->eg_data, *ptr++);
|
|
while (!(inb(sc->eg_stat) & EG_STAT_HRDY))
|
|
; /* XXX need timeout here */
|
|
}
|
|
|
|
m_freem(m0);
|
|
}
|
|
|
|
void
|
|
egintr(int unit)
|
|
{
|
|
register struct eg_softc *sc = &eg_softc[unit];
|
|
int i, len;
|
|
u_short *ptr;
|
|
|
|
while (inb(sc->eg_stat) & EG_STAT_ACRF) {
|
|
egreadPCB(sc);
|
|
switch (sc->eg_pcb[0]) {
|
|
case EG_RSP_RECVPACKET:
|
|
len = sc->eg_pcb[6] | (sc->eg_pcb[7] << 8);
|
|
|
|
/* Set direction bit : Adapter -> host */
|
|
outb(sc->eg_ctl, inb(sc->eg_ctl) | EG_CTL_DIR);
|
|
|
|
for (ptr = (u_short *) sc->eg_inbuf; len > 0; len -= 2) {
|
|
while (!(inb(sc->eg_stat) & EG_STAT_HRDY))
|
|
;
|
|
*ptr++ = inw(sc->eg_data);
|
|
}
|
|
|
|
len = sc->eg_pcb[8] | (sc->eg_pcb[9] << 8);
|
|
egread(sc, sc->eg_inbuf, len);
|
|
|
|
sc->eg_incount--;
|
|
egrecv(sc);
|
|
break;
|
|
|
|
case EG_RSP_SENDPACKET:
|
|
if (sc->eg_pcb[6] || sc->eg_pcb[7]) {
|
|
dprintf(("eg#: packet dropped\n"));
|
|
sc->sc_arpcom.ac_if.if_oerrors++;
|
|
} else
|
|
sc->sc_arpcom.ac_if.if_opackets++;
|
|
sc->sc_arpcom.ac_if.if_collisions += sc->eg_pcb[8] & 0xf;
|
|
sc->sc_arpcom.ac_if.if_flags &= ~IFF_OACTIVE;
|
|
egstart(&sc->sc_arpcom.ac_if);
|
|
break;
|
|
|
|
case EG_RSP_GETSTATS:
|
|
dprintf(("eg#: Card Statistics\n"));
|
|
bcopy(&sc->eg_pcb[2], &i, sizeof(i));
|
|
dprintf(("eg#: Receive Packets %d\n", i));
|
|
bcopy(&sc->eg_pcb[6], &i, sizeof(i));
|
|
dprintf(("eg#: Transmit Packets %d\n", i));
|
|
dprintf(("eg#: CRC errors %d\n", *(short*) &sc->eg_pcb[10]));
|
|
dprintf(("eg#: alignment errors %d\n", *(short*) &sc->eg_pcb[12]));
|
|
dprintf(("eg#: no resources errors %d\n", *(short*) &sc->eg_pcb[14]));
|
|
dprintf(("eg#: overrun errors %d\n", *(short*) &sc->eg_pcb[16]));
|
|
break;
|
|
|
|
default:
|
|
dprintf(("eg#: egintr: Unknown response %x??\n",
|
|
sc->eg_pcb[0]));
|
|
egprintpcb(sc);
|
|
break;
|
|
}
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Pass a packet up to the higher levels.
|
|
*/
|
|
static void
|
|
egread(sc, buf, len)
|
|
struct eg_softc *sc;
|
|
caddr_t buf;
|
|
int len;
|
|
{
|
|
struct ifnet *ifp = &sc->sc_arpcom.ac_if;
|
|
struct mbuf *m;
|
|
struct ether_header *eh;
|
|
|
|
if (len <= sizeof(struct ether_header) ||
|
|
len > ETHER_MAX_LEN) {
|
|
printf("eg#: invalid packet size %d; dropping\n", len);
|
|
ifp->if_ierrors++;
|
|
return;
|
|
}
|
|
|
|
/* Pull packet off interface. */
|
|
m = egget(sc, buf, len);
|
|
if (m == 0) {
|
|
ifp->if_ierrors++;
|
|
return;
|
|
}
|
|
|
|
ifp->if_ipackets++;
|
|
|
|
/* We assume the header fit entirely in one mbuf. */
|
|
eh = mtod(m, struct ether_header *);
|
|
|
|
#if NBPFILTER > 0
|
|
/*
|
|
* Check if there's a BPF listener on this interface.
|
|
* If so, hand off the raw packet to BPF.
|
|
*/
|
|
if (ifp->if_bpf) {
|
|
bpf_mtap(ifp, m);
|
|
|
|
/*
|
|
* Note that the interface cannot be in promiscuous mode if
|
|
* there are no BPF listeners. And if we are in promiscuous
|
|
* mode, we have to check if this packet is really ours.
|
|
*/
|
|
if ((ifp->if_flags & IFF_PROMISC) &&
|
|
(eh->ether_dhost[0] & 1) == 0 && /* !mcast and !bcast */
|
|
bcmp(eh->ether_dhost, sc->sc_arpcom.ac_enaddr,
|
|
sizeof(eh->ether_dhost)) != 0) {
|
|
m_freem(m);
|
|
return;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/* We assume the header fit entirely in one mbuf. */
|
|
m_adj(m, sizeof(struct ether_header));
|
|
ether_input(ifp, eh, m);
|
|
}
|
|
|
|
/*
|
|
* convert buf into mbufs
|
|
*/
|
|
static struct mbuf *
|
|
egget(sc, buf, totlen)
|
|
struct eg_softc *sc;
|
|
caddr_t buf;
|
|
int totlen;
|
|
{
|
|
struct ifnet *ifp = &sc->sc_arpcom.ac_if;
|
|
struct mbuf *top, **mp, *m;
|
|
int len;
|
|
|
|
MGETHDR(m, M_DONTWAIT, MT_DATA);
|
|
if (m == 0)
|
|
return 0;
|
|
m->m_pkthdr.rcvif = ifp;
|
|
m->m_pkthdr.len = totlen;
|
|
len = MHLEN;
|
|
top = 0;
|
|
mp = ⊤
|
|
|
|
while (totlen > 0) {
|
|
if (top) {
|
|
MGET(m, M_DONTWAIT, MT_DATA);
|
|
if (m == 0) {
|
|
m_freem(top);
|
|
return 0;
|
|
}
|
|
len = MLEN;
|
|
}
|
|
if (totlen >= MINCLSIZE) {
|
|
MCLGET(m, M_DONTWAIT);
|
|
if (m->m_flags & M_EXT)
|
|
len = MCLBYTES;
|
|
}
|
|
m->m_len = len = min(totlen, len);
|
|
bcopy((caddr_t)buf, mtod(m, caddr_t), len);
|
|
buf += len;
|
|
totlen -= len;
|
|
*mp = m;
|
|
mp = &m->m_next;
|
|
}
|
|
|
|
return top;
|
|
}
|
|
|
|
static int
|
|
egioctl(ifp, command, data)
|
|
register struct ifnet *ifp;
|
|
int command;
|
|
caddr_t data;
|
|
{
|
|
struct eg_softc *sc = ifp->if_softc;
|
|
int s, error = 0;
|
|
|
|
s = splnet();
|
|
|
|
switch (command) {
|
|
|
|
case SIOCSIFADDR:
|
|
case SIOCGIFADDR:
|
|
case SIOCSIFMTU:
|
|
error = ether_ioctl(ifp, command, data);
|
|
break;
|
|
|
|
case SIOCSIFFLAGS:
|
|
if ((ifp->if_flags & IFF_UP) == 0 &&
|
|
(ifp->if_flags & IFF_RUNNING) != 0) {
|
|
/*
|
|
* If interface is marked down and it is running, then
|
|
* stop it.
|
|
*/
|
|
egstop(sc);
|
|
ifp->if_flags &= ~IFF_RUNNING;
|
|
} else if ((ifp->if_flags & IFF_UP) != 0 &&
|
|
(ifp->if_flags & IFF_RUNNING) == 0) {
|
|
/*
|
|
* If interface is marked up and it is stopped, then
|
|
* start it.
|
|
*/
|
|
eginit(sc);
|
|
} else {
|
|
sc->eg_pcb[0] = EG_CMD_GETSTATS;
|
|
sc->eg_pcb[1] = 0;
|
|
#ifdef EGDEBUG
|
|
if (egwritePCB(sc) != 0)
|
|
dprintf(("eg#: write error\n"));
|
|
#endif
|
|
/*
|
|
* XXX deal with flags changes:
|
|
* IFF_MULTICAST, IFF_PROMISC,
|
|
* IFF_LINK0, IFF_LINK1,
|
|
*/
|
|
}
|
|
break;
|
|
|
|
default:
|
|
error = EINVAL;
|
|
break;
|
|
}
|
|
|
|
splx(s);
|
|
return error;
|
|
}
|
|
|
|
static void
|
|
egreset(sc)
|
|
struct eg_softc *sc;
|
|
{
|
|
int s;
|
|
|
|
dprintf(("eg#: egreset()\n"));
|
|
s = splnet();
|
|
egstop(sc);
|
|
eginit(sc);
|
|
splx(s);
|
|
}
|
|
|
|
static void
|
|
egwatchdog(ifp)
|
|
struct ifnet *ifp;
|
|
{
|
|
struct eg_softc *sc = ifp->if_softc;
|
|
|
|
log(LOG_ERR, "%s: device timeout\n", "eg#");
|
|
sc->sc_arpcom.ac_if.if_oerrors++;
|
|
|
|
egreset(sc);
|
|
}
|
|
|
|
static void
|
|
egstop(sc)
|
|
register struct eg_softc *sc;
|
|
{
|
|
|
|
outb(sc->eg_ctl, 0);
|
|
}
|