975 lines
22 KiB
C
975 lines
22 KiB
C
/* $NetBSD: if_eg.c,v 1.44 1998/12/12 16:58:11 mycroft Exp $ */
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/*
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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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/*
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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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* - get rid of isa indirect stuff
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*/
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#include "opt_inet.h"
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#include "opt_ns.h"
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#include "bpfilter.h"
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#include "rnd.h"
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/mbuf.h>
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#include <sys/socket.h>
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#include <sys/ioctl.h>
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#include <sys/errno.h>
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#include <sys/syslog.h>
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#include <sys/select.h>
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#include <sys/device.h>
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#if NRND > 0
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#include <sys/rnd.h>
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#endif
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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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#include <net/if_ether.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_inarp.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/cpu.h>
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#include <machine/intr.h>
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#include <machine/bus.h>
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#include <dev/isa/isavar.h>
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#include <dev/isa/if_egreg.h>
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#include <dev/isa/elink.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 ETHER_MIN_LEN 64
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#define ETHER_MAX_LEN 1518
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#define ETHER_ADDR_LEN 6
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#define EG_INLEN 10
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#define EG_BUFLEN 0x0670
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#define EG_PCBLEN 64
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/*
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* Ethernet software status per interface.
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*/
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struct eg_softc {
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struct device sc_dev;
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void *sc_ih;
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struct ethercom sc_ethercom; /* Ethernet common part */
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bus_space_tag_t sc_iot; /* bus space identifier */
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bus_space_handle_t sc_ioh; /* i/o handle */
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u_int8_t eg_rom_major; /* Cards ROM version (major number) */
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u_int8_t 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_int8_t eg_pcb[EG_PCBLEN]; /* Primary Command Block buffer */
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u_int8_t eg_incount; /* Number of buffers currently used */
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caddr_t eg_inbuf; /* Incoming packet buffer */
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caddr_t eg_outbuf; /* Outgoing packet buffer */
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#if NRND > 0
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rndsource_element_t rnd_source;
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#endif
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};
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int egprobe __P((struct device *, struct cfdata *, void *));
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void egattach __P((struct device *, struct device *, void *));
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struct cfattach eg_ca = {
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sizeof(struct eg_softc), egprobe, egattach
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};
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int egintr __P((void *));
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void eginit __P((struct eg_softc *));
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int egioctl __P((struct ifnet *, u_long, caddr_t));
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void egrecv __P((struct eg_softc *));
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void egstart __P((struct ifnet *));
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void egwatchdog __P((struct ifnet *));
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void egreset __P((struct eg_softc *));
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void egread __P((struct eg_softc *, caddr_t, int));
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struct mbuf *egget __P((struct eg_softc *, caddr_t, int));
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void egstop __P((struct eg_softc *));
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static inline void egprintpcb __P((u_int8_t *));
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static inline void egprintstat __P((u_char));
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static int egoutPCB __P((bus_space_tag_t, bus_space_handle_t, u_int8_t));
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static int egreadPCBstat __P((bus_space_tag_t, bus_space_handle_t, u_int8_t));
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static int egreadPCBready __P((bus_space_tag_t, bus_space_handle_t));
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static int egwritePCB __P((bus_space_tag_t, bus_space_handle_t, u_int8_t *));
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static int egreadPCB __P((bus_space_tag_t, bus_space_handle_t, u_int8_t *));
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/*
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* Support stuff
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*/
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static inline void
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egprintpcb(pcb)
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u_int8_t *pcb;
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{
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int i;
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for (i = 0; i < pcb[1] + 2; i++)
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DPRINTF(("pcb[%2d] = %x\n", i, pcb[i]));
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}
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static inline void
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egprintstat(b)
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u_char b;
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{
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DPRINTF(("%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(iot, ioh, b)
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bus_space_tag_t iot;
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bus_space_handle_t ioh;
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u_int8_t 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 (bus_space_read_1(iot, ioh, EG_STATUS) & EG_STAT_HCRE) {
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bus_space_write_1(iot, ioh, EG_COMMAND, 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(("egoutPCB failed\n"));
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return 1;
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}
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static int
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egreadPCBstat(iot, ioh, statb)
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bus_space_tag_t iot;
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bus_space_handle_t ioh;
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u_int8_t 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 ((bus_space_read_1(iot, ioh, EG_STATUS) &
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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 ((bus_space_read_1(iot, ioh, EG_STATUS) & 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(iot, ioh)
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bus_space_tag_t iot;
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bus_space_handle_t ioh;
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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 (bus_space_read_1(iot, ioh, EG_STATUS) & EG_STAT_ACRF)
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return 0;
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delay(5);
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}
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DPRINTF(("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(iot, ioh, pcb)
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bus_space_tag_t iot;
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bus_space_handle_t ioh;
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u_int8_t *pcb;
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{
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int i;
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u_int8_t len;
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bus_space_write_1(iot, ioh, EG_CONTROL,
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(bus_space_read_1(iot, ioh, EG_CONTROL) & ~EG_PCB_STAT) | EG_PCB_NULL);
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len = pcb[1] + 2;
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for (i = 0; i < len; i++)
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egoutPCB(iot, ioh, pcb[i]);
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for (i=0; i < 4000; i++) {
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if (bus_space_read_1(iot, ioh, EG_STATUS) & EG_STAT_HCRE)
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break;
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delay(10);
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}
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bus_space_write_1(iot, ioh, EG_CONTROL,
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(bus_space_read_1(iot, ioh, EG_CONTROL) & ~EG_PCB_STAT) | EG_PCB_DONE);
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egoutPCB(iot, ioh, len);
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if (egreadPCBstat(iot, ioh, 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(iot, ioh, pcb)
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bus_space_tag_t iot;
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bus_space_handle_t ioh;
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u_int8_t *pcb;
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{
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int i;
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u_int8_t b;
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bus_space_write_1(iot, ioh, EG_CONTROL,
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(bus_space_read_1(iot, ioh, EG_CONTROL) & ~EG_PCB_STAT) | EG_PCB_NULL);
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bzero(pcb, EG_PCBLEN);
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if (egreadPCBready(iot, ioh))
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return 1;
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pcb[0] = bus_space_read_1(iot, ioh, EG_COMMAND);
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if (egreadPCBready(iot, ioh))
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return 1;
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pcb[1] = bus_space_read_1(iot, ioh, EG_COMMAND);
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if (pcb[1] > 62) {
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DPRINTF(("len %d too large\n", pcb[1]));
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return 1;
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}
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for (i = 0; i < pcb[1]; i++) {
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if (egreadPCBready(iot, ioh))
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return 1;
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pcb[2+i] = bus_space_read_1(iot, ioh, EG_COMMAND);
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}
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if (egreadPCBready(iot, ioh))
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return 1;
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if (egreadPCBstat(iot, ioh, EG_PCB_DONE))
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return 1;
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if ((b = bus_space_read_1(iot, ioh, EG_COMMAND)) != pcb[1] + 2) {
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DPRINTF(("%d != %d\n", b, pcb[1] + 2));
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return 1;
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}
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bus_space_write_1(iot, ioh, EG_CONTROL,
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(bus_space_read_1(iot, ioh, EG_CONTROL) &
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~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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int
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egprobe(parent, match, aux)
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struct device *parent;
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struct cfdata *match;
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void *aux;
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{
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struct isa_attach_args *ia = aux;
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bus_space_tag_t iot = ia->ia_iot;
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bus_space_handle_t ioh;
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int i, rval;
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static u_int8_t pcb[EG_PCBLEN];
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rval = 0;
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if ((ia->ia_iobase & ~0x07f0) != 0) {
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DPRINTF(("Weird iobase %x\n", ia->ia_iobase));
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return 0;
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}
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/* Disallow wildcarded i/o address. */
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if (ia->ia_iobase == ISACF_PORT_DEFAULT)
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return (0);
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/* Map i/o space. */
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if (bus_space_map(iot, ia->ia_iobase, 0x08, 0, &ioh)) {
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DPRINTF(("egprobe: can't map i/o space in probe\n"));
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return 0;
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}
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/* hard reset card */
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bus_space_write_1(iot, ioh, EG_CONTROL, EG_CTL_RESET);
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bus_space_write_1(iot, ioh, EG_CONTROL, 0);
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for (i = 0; i < 5000; i++) {
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delay(1000);
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if ((bus_space_read_1(iot, ioh, EG_STATUS) &
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EG_PCB_STAT) == EG_PCB_NULL)
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break;
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}
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if ((bus_space_read_1(iot, ioh, EG_STATUS) & EG_PCB_STAT) != EG_PCB_NULL) {
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DPRINTF(("egprobe: Reset failed\n"));
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goto out;
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}
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pcb[0] = EG_CMD_GETINFO; /* Get Adapter Info */
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pcb[1] = 0;
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if (egwritePCB(iot, ioh, pcb) != 0)
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goto out;
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if ((egreadPCB(iot, ioh, pcb) != 0) ||
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pcb[0] != EG_RSP_GETINFO || /* Get Adapter Info Response */
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pcb[1] != 0x0a) {
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egprintpcb(pcb);
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goto out;
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}
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ia->ia_iosize = 0x08;
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ia->ia_msize = 0;
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rval = 1;
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out:
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bus_space_unmap(iot, ioh, 0x08);
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return rval;
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}
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void
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egattach(parent, self, aux)
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struct device *parent, *self;
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void *aux;
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{
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struct eg_softc *sc = (void *)self;
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struct isa_attach_args *ia = aux;
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bus_space_tag_t iot = ia->ia_iot;
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bus_space_handle_t ioh;
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struct ifnet *ifp = &sc->sc_ethercom.ec_if;
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u_int8_t myaddr[ETHER_ADDR_LEN];
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printf("\n");
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/* Map i/o space. */
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if (bus_space_map(iot, ia->ia_iobase, ia->ia_iosize, 0, &ioh)) {
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printf("%s: can't map i/o space\n", self->dv_xname);
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return;
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}
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sc->sc_iot = iot;
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sc->sc_ioh = ioh;
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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(iot, ioh, sc->eg_pcb) != 0) {
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printf("%s: error requesting adapter info\n", self->dv_xname);
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return;
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}
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if (egreadPCB(iot, ioh, sc->eg_pcb) != 0) {
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egprintpcb(sc->eg_pcb);
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printf("%s: error reading adapter info\n", self->dv_xname);
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return;
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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->eg_pcb);
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printf("%s: bogus adapter info\n", self->dv_xname);
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return;
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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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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(iot, ioh, sc->eg_pcb) != 0) {
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printf("%s: can't send Get Station Address\n", self->dv_xname);
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return;
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}
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if (egreadPCB(iot, ioh, sc->eg_pcb) != 0) {
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printf("%s: can't read station address\n", self->dv_xname);
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egprintpcb(sc->eg_pcb);
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return;
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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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printf("%s: card responded with garbage (1)\n",
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self->dv_xname);
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egprintpcb(sc->eg_pcb);
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return;
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}
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bcopy(&sc->eg_pcb[2], myaddr, ETHER_ADDR_LEN);
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printf("%s: ROM v%d.%02d %dk address %s\n", self->dv_xname,
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sc->eg_rom_major, sc->eg_rom_minor, sc->eg_ram,
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ether_sprintf(myaddr));
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sc->eg_pcb[0] = EG_CMD_SETEADDR; /* Set station address */
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if (egwritePCB(iot, ioh, sc->eg_pcb) != 0) {
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printf("%s: can't send Set Station Address\n", self->dv_xname);
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return;
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}
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if (egreadPCB(iot, ioh, sc->eg_pcb) != 0) {
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printf("%s: can't read Set Station Address status\n",
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self->dv_xname);
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egprintpcb(sc->eg_pcb);
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return;
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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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printf("%s: card responded with garbage (2)\n",
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self->dv_xname);
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egprintpcb(sc->eg_pcb);
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return;
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}
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/* Initialize ifnet structure. */
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bcopy(sc->sc_dev.dv_xname, ifp->if_xname, IFNAMSIZ);
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ifp->if_softc = sc;
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ifp->if_start = egstart;
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ifp->if_ioctl = egioctl;
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|
ifp->if_watchdog = egwatchdog;
|
|
ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_NOTRAILERS;
|
|
|
|
/* Now we can attach the interface. */
|
|
if_attach(ifp);
|
|
ether_ifattach(ifp, myaddr);
|
|
|
|
#if NBPFILTER > 0
|
|
bpfattach(&ifp->if_bpf, ifp, DLT_EN10MB, sizeof(struct ether_header));
|
|
#endif
|
|
|
|
sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE,
|
|
IPL_NET, egintr, sc);
|
|
|
|
#if NRND > 0
|
|
rnd_attach_source(&sc->rnd_source, sc->sc_dev.dv_xname, RND_TYPE_NET);
|
|
#endif
|
|
}
|
|
|
|
void
|
|
eginit(sc)
|
|
register struct eg_softc *sc;
|
|
{
|
|
register struct ifnet *ifp = &sc->sc_ethercom.ec_if;
|
|
bus_space_tag_t iot = sc->sc_iot;
|
|
bus_space_handle_t ioh = sc->sc_ioh;
|
|
|
|
/* soft reset the board */
|
|
bus_space_write_1(iot, ioh, EG_CONTROL, EG_CTL_FLSH);
|
|
delay(100);
|
|
bus_space_write_1(iot, ioh, EG_CONTROL, EG_CTL_ATTN);
|
|
delay(100);
|
|
bus_space_write_1(iot, ioh, EG_CONTROL, 0);
|
|
delay(200);
|
|
|
|
sc->eg_pcb[0] = EG_CMD_CONFIG82586; /* Configure 82586 */
|
|
sc->eg_pcb[1] = 2;
|
|
sc->eg_pcb[2] = 3; /* receive broadcast & multicast */
|
|
sc->eg_pcb[3] = 0;
|
|
if (egwritePCB(iot, ioh, sc->eg_pcb) != 0)
|
|
printf("%s: can't send Configure 82586\n",
|
|
sc->sc_dev.dv_xname);
|
|
|
|
if (egreadPCB(iot, ioh, sc->eg_pcb) != 0) {
|
|
printf("%s: can't read Configure 82586 status\n",
|
|
sc->sc_dev.dv_xname);
|
|
egprintpcb(sc->eg_pcb);
|
|
} else if (sc->eg_pcb[2] != 0 || sc->eg_pcb[3] != 0)
|
|
printf("%s: configure card command failed\n",
|
|
sc->sc_dev.dv_xname);
|
|
|
|
if (sc->eg_inbuf == NULL) {
|
|
sc->eg_inbuf = malloc(EG_BUFLEN, M_TEMP, M_NOWAIT);
|
|
if (sc->eg_inbuf == NULL) {
|
|
printf("%s: can't allocate inbuf\n",
|
|
sc->sc_dev.dv_xname);
|
|
panic("eginit");
|
|
}
|
|
}
|
|
sc->eg_incount = 0;
|
|
|
|
if (sc->eg_outbuf == NULL) {
|
|
sc->eg_outbuf = malloc(EG_BUFLEN, M_TEMP, M_NOWAIT);
|
|
if (sc->eg_outbuf == NULL) {
|
|
printf("%s: can't allocate outbuf\n",
|
|
sc->sc_dev.dv_xname);
|
|
panic("eginit");
|
|
}
|
|
}
|
|
|
|
bus_space_write_1(iot, ioh, EG_CONTROL, EG_CTL_CMDE);
|
|
|
|
sc->eg_incount = 0;
|
|
egrecv(sc);
|
|
|
|
/* Interface is now `running', with no output active. */
|
|
ifp->if_flags |= IFF_RUNNING;
|
|
ifp->if_flags &= ~IFF_OACTIVE;
|
|
|
|
/* Attempt to start output, if any. */
|
|
egstart(ifp);
|
|
}
|
|
|
|
void
|
|
egrecv(sc)
|
|
struct eg_softc *sc;
|
|
{
|
|
|
|
while (sc->eg_incount < EG_INLEN) {
|
|
sc->eg_pcb[0] = EG_CMD_RECVPACKET;
|
|
sc->eg_pcb[1] = 0x08;
|
|
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] = EG_BUFLEN & 0xff; /* our buffer size */
|
|
sc->eg_pcb[7] = (EG_BUFLEN >> 8) & 0xff;
|
|
sc->eg_pcb[8] = 0; /* timeout, 0 == none */
|
|
sc->eg_pcb[9] = 0;
|
|
if (egwritePCB(sc->sc_iot, sc->sc_ioh, sc->eg_pcb) != 0)
|
|
break;
|
|
sc->eg_incount++;
|
|
}
|
|
}
|
|
|
|
void
|
|
egstart(ifp)
|
|
struct ifnet *ifp;
|
|
{
|
|
register struct eg_softc *sc = ifp->if_softc;
|
|
bus_space_tag_t iot = sc->sc_iot;
|
|
bus_space_handle_t ioh = sc->sc_ioh;
|
|
struct mbuf *m0, *m;
|
|
caddr_t buffer;
|
|
int len;
|
|
u_int16_t *ptr;
|
|
|
|
/* 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) {
|
|
printf("%s: no header mbuf\n", sc->sc_dev.dv_xname);
|
|
panic("egstart");
|
|
}
|
|
len = max(m0->m_pkthdr.len, ETHER_MIN_LEN);
|
|
|
|
#if NBPFILTER > 0
|
|
if (ifp->if_bpf)
|
|
bpf_mtap(ifp->if_bpf, 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(iot, ioh, sc->eg_pcb) != 0) {
|
|
printf("%s: can't send Send Packet command\n",
|
|
sc->sc_dev.dv_xname);
|
|
ifp->if_oerrors++;
|
|
ifp->if_flags &= ~IFF_OACTIVE;
|
|
m_freem(m0);
|
|
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 */
|
|
bus_space_write_1(iot, ioh, EG_CONTROL,
|
|
bus_space_read_1(iot, ioh, EG_CONTROL) & ~EG_CTL_DIR);
|
|
|
|
for (ptr = (u_int16_t *) sc->eg_outbuf; len > 0; len -= 2) {
|
|
bus_space_write_2(iot, ioh, EG_DATA, *ptr++);
|
|
while (!(bus_space_read_1(iot, ioh, EG_STATUS) & EG_STAT_HRDY))
|
|
; /* XXX need timeout here */
|
|
}
|
|
|
|
m_freem(m0);
|
|
}
|
|
|
|
int
|
|
egintr(arg)
|
|
void *arg;
|
|
{
|
|
register struct eg_softc *sc = arg;
|
|
bus_space_tag_t iot = sc->sc_iot;
|
|
bus_space_handle_t ioh = sc->sc_ioh;
|
|
int i, len, serviced;
|
|
u_int16_t *ptr;
|
|
|
|
serviced = 0;
|
|
|
|
while (bus_space_read_1(iot, ioh, EG_STATUS) & EG_STAT_ACRF) {
|
|
egreadPCB(iot, ioh, sc->eg_pcb);
|
|
switch (sc->eg_pcb[0]) {
|
|
case EG_RSP_RECVPACKET:
|
|
len = sc->eg_pcb[6] | (sc->eg_pcb[7] << 8);
|
|
|
|
/* Set direction bit : Adapter -> host */
|
|
bus_space_write_1(iot, ioh, EG_CONTROL,
|
|
bus_space_read_1(iot, ioh, EG_CONTROL) | EG_CTL_DIR);
|
|
|
|
for (ptr = (u_int16_t *) sc->eg_inbuf;
|
|
len > 0; len -= 2) {
|
|
while (!(bus_space_read_1(iot, ioh, EG_STATUS) &
|
|
EG_STAT_HRDY))
|
|
;
|
|
*ptr++ = bus_space_read_2(iot, ioh, EG_DATA);
|
|
}
|
|
|
|
len = sc->eg_pcb[8] | (sc->eg_pcb[9] << 8);
|
|
egread(sc, sc->eg_inbuf, len);
|
|
|
|
sc->eg_incount--;
|
|
egrecv(sc);
|
|
serviced = 1;
|
|
break;
|
|
|
|
case EG_RSP_SENDPACKET:
|
|
if (sc->eg_pcb[6] || sc->eg_pcb[7]) {
|
|
DPRINTF(("%s: packet dropped\n",
|
|
sc->sc_dev.dv_xname));
|
|
sc->sc_ethercom.ec_if.if_oerrors++;
|
|
} else
|
|
sc->sc_ethercom.ec_if.if_opackets++;
|
|
sc->sc_ethercom.ec_if.if_collisions +=
|
|
sc->eg_pcb[8] & 0xf;
|
|
sc->sc_ethercom.ec_if.if_flags &= ~IFF_OACTIVE;
|
|
egstart(&sc->sc_ethercom.ec_if);
|
|
serviced = 1;
|
|
break;
|
|
|
|
/* XXX byte-order and type-size bugs here... */
|
|
case EG_RSP_GETSTATS:
|
|
DPRINTF(("%s: Card Statistics\n",
|
|
sc->sc_dev.dv_xname));
|
|
bcopy(&sc->eg_pcb[2], &i, sizeof(i));
|
|
DPRINTF(("Receive Packets %d\n", i));
|
|
bcopy(&sc->eg_pcb[6], &i, sizeof(i));
|
|
DPRINTF(("Transmit Packets %d\n", i));
|
|
DPRINTF(("CRC errors %d\n",
|
|
*(short *) &sc->eg_pcb[10]));
|
|
DPRINTF(("alignment errors %d\n",
|
|
*(short *) &sc->eg_pcb[12]));
|
|
DPRINTF(("no resources errors %d\n",
|
|
*(short *) &sc->eg_pcb[14]));
|
|
DPRINTF(("overrun errors %d\n",
|
|
*(short *) &sc->eg_pcb[16]));
|
|
serviced = 1;
|
|
break;
|
|
|
|
default:
|
|
printf("%s: egintr: Unknown response %x??\n",
|
|
sc->sc_dev.dv_xname, sc->eg_pcb[0]);
|
|
egprintpcb(sc->eg_pcb);
|
|
break;
|
|
}
|
|
|
|
#if NRND > 0
|
|
rnd_add_uint32(&sc->rnd_source, sc->eg_pcb[0]);
|
|
#endif
|
|
}
|
|
|
|
return serviced;
|
|
}
|
|
|
|
/*
|
|
* Pass a packet up to the higher levels.
|
|
*/
|
|
void
|
|
egread(sc, buf, len)
|
|
struct eg_softc *sc;
|
|
caddr_t buf;
|
|
int len;
|
|
{
|
|
struct ifnet *ifp = &sc->sc_ethercom.ec_if;
|
|
struct mbuf *m;
|
|
struct ether_header *eh;
|
|
|
|
if (len <= sizeof(struct ether_header) ||
|
|
len > ETHER_MAX_LEN) {
|
|
printf("%s: invalid packet size %d; dropping\n",
|
|
sc->sc_dev.dv_xname, 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->if_bpf, 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, LLADDR(ifp->if_sadl),
|
|
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
|
|
*/
|
|
struct mbuf *
|
|
egget(sc, buf, totlen)
|
|
struct eg_softc *sc;
|
|
caddr_t buf;
|
|
int totlen;
|
|
{
|
|
struct ifnet *ifp = &sc->sc_ethercom.ec_if;
|
|
struct mbuf *m, *m0, *newm;
|
|
int len;
|
|
|
|
MGETHDR(m0, M_DONTWAIT, MT_DATA);
|
|
if (m0 == 0)
|
|
return (0);
|
|
m0->m_pkthdr.rcvif = ifp;
|
|
m0->m_pkthdr.len = totlen;
|
|
len = MHLEN;
|
|
m = m0;
|
|
|
|
while (totlen > 0) {
|
|
if (totlen >= MINCLSIZE) {
|
|
MCLGET(m, M_DONTWAIT);
|
|
if ((m->m_flags & M_EXT) == 0)
|
|
goto bad;
|
|
len = MCLBYTES;
|
|
}
|
|
|
|
m->m_len = len = min(totlen, len);
|
|
bcopy((caddr_t)buf, mtod(m, caddr_t), len);
|
|
buf += len;
|
|
|
|
totlen -= len;
|
|
if (totlen > 0) {
|
|
MGET(newm, M_DONTWAIT, MT_DATA);
|
|
if (newm == 0)
|
|
goto bad;
|
|
len = MLEN;
|
|
m = m->m_next = newm;
|
|
}
|
|
}
|
|
|
|
return (m0);
|
|
|
|
bad:
|
|
m_freem(m0);
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
egioctl(ifp, cmd, data)
|
|
register struct ifnet *ifp;
|
|
u_long cmd;
|
|
caddr_t data;
|
|
{
|
|
struct eg_softc *sc = ifp->if_softc;
|
|
struct ifaddr *ifa = (struct ifaddr *)data;
|
|
int s, error = 0;
|
|
|
|
s = splnet();
|
|
|
|
switch (cmd) {
|
|
|
|
case SIOCSIFADDR:
|
|
ifp->if_flags |= IFF_UP;
|
|
|
|
switch (ifa->ifa_addr->sa_family) {
|
|
#ifdef INET
|
|
case AF_INET:
|
|
eginit(sc);
|
|
arp_ifinit(ifp, ifa);
|
|
break;
|
|
#endif
|
|
#ifdef NS
|
|
case AF_NS:
|
|
{
|
|
register struct ns_addr *ina = &IA_SNS(ifa)->sns_addr;
|
|
|
|
if (ns_nullhost(*ina))
|
|
ina->x_host =
|
|
*(union ns_host *)LLADDR(ifp->if_sadl);
|
|
else
|
|
bcopy(ina->x_host.c_host, LLADDR(ifp->if_sadl),
|
|
ETHER_ADDR_LEN);
|
|
/* Set new address. */
|
|
eginit(sc);
|
|
break;
|
|
}
|
|
#endif
|
|
default:
|
|
eginit(sc);
|
|
break;
|
|
}
|
|
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;
|
|
if (egwritePCB(sc->sc_iot, sc->sc_ioh, sc->eg_pcb) != 0)
|
|
DPRINTF(("write error\n"));
|
|
/*
|
|
* XXX deal with flags changes:
|
|
* IFF_MULTICAST, IFF_PROMISC,
|
|
* IFF_LINK0, IFF_LINK1,
|
|
*/
|
|
}
|
|
break;
|
|
|
|
default:
|
|
error = EINVAL;
|
|
break;
|
|
}
|
|
|
|
splx(s);
|
|
return error;
|
|
}
|
|
|
|
void
|
|
egreset(sc)
|
|
struct eg_softc *sc;
|
|
{
|
|
int s;
|
|
|
|
DPRINTF(("%s: egreset()\n", sc->sc_dev.dv_xname));
|
|
s = splnet();
|
|
egstop(sc);
|
|
eginit(sc);
|
|
splx(s);
|
|
}
|
|
|
|
void
|
|
egwatchdog(ifp)
|
|
struct ifnet *ifp;
|
|
{
|
|
struct eg_softc *sc = ifp->if_softc;
|
|
|
|
log(LOG_ERR, "%s: device timeout\n", sc->sc_dev.dv_xname);
|
|
sc->sc_ethercom.ec_if.if_oerrors++;
|
|
|
|
egreset(sc);
|
|
}
|
|
|
|
void
|
|
egstop(sc)
|
|
register struct eg_softc *sc;
|
|
{
|
|
|
|
bus_space_write_1(sc->sc_iot, sc->sc_ioh, EG_CONTROL, 0);
|
|
}
|