Driver for 3c505 boards. Uses the onboard firmware, which is not a good
way to do it. Doesn't support DMA or high speeds. Contributed by: Dean Huxley <dean@fsa.ca> via NetBSD
This commit is contained in:
Poul-Henning Kamp
parent
12cfa43650
commit
b994e1c2a4
856
sys/i386/isa/if_eg.c
Normal file
856
sys/i386/isa/if_eg.c
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@ -0,0 +1,856 @@
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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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* $Id$
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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/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 <sys/devconf.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 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/clock.h>
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#include <i386/isa/isa.h>
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#include <i386/isa/isa_device.h>
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#include <i386/isa/icu.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 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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/*
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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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/* struct intrhand sc_ih; */
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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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struct kern_devconf kdc; /* kernel configuration database */
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} eg_softc[NEG];
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int egprobe (struct isa_device *);
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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 struct kern_devconf kdc_eg_template = {
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0, 0, 0, /* filled in by dev_attach */
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"eg", 0, { MDDT_ISA, 0, "net" },
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isa_generic_externalize, 0, 0, ISA_EXTERNALLEN,
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&kdc_isa0, /* parent */
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0, /* parentdata */
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DC_UNCONFIGURED,
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"" /* description */
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};
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static inline void
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eg_registerdev(struct isa_device *id, const char *descr)
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{
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struct kern_devconf *kdc = &eg_softc[id->id_unit].kdc;
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*kdc = kdc_eg_template;
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kdc->kdc_unit = id->id_unit;
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kdc->kdc_parentdata = id;
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kdc->kdc_description = descr;
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dev_attach(kdc);
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}
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void egintr (int);
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static void eginit __P((struct eg_softc *));
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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 egreset(int);
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static inline void egread __P((struct eg_softc *, caddr_t, int));
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static struct mbuf *egget __P((caddr_t, int, struct ifnet *));
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static void egstop __P((struct eg_softc *));
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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(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 inline 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 (EG_PCB_STAT(inb(sc->eg_stat)))
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break;
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DELAY(10);
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}
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if (EG_PCB_STAT(inb(sc->eg_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, EG_PCB_MASK(inb(sc->eg_ctl)));
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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, EG_PCB_MASK(inb(sc->eg_ctl)) | 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, EG_PCB_MASK(inb(sc->eg_ctl)));
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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, EG_PCB_MASK(inb(sc->eg_ctl)) | 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(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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eg_registerdev(id, "Ethernet adapter");
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if (id->id_iobase & ~0x07f0 != 0) {
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dprintf(("eg#: Weird iobase %x\n", id->id_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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if (inb(sc->eg_ctl) != 0xc0)
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return 0;
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DELAY(5000);
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outb(sc->eg_ctl, 0);
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if (inb(sc->eg_ctl) != 0)
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return 0;
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for (i = 0; i < 250; i++) {
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DELAY(100000);
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if (EG_PCB_STAT(inb(sc->eg_stat)) == 0)
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break;
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}
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if (EG_PCB_STAT(inb(sc->eg_stat)) != 0) {
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dprintf(("eg%d: Reset failed\n",id->id_unit));
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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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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 %s, type=3COM 3c505 (v%d.%02d, %dk)\n",
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id->id_unit,
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ether_sprintf(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_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_reset = egreset;
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ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_NOTRAILERS;
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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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/* device attach does transition from UNCONFIGURED to IDLE state */
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sc->kdc.kdc_state = DC_IDLE;
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#if NBPFILTER > 0
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bpfattach(&ifp->if_bpf, 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(sc)
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register struct eg_softc *sc;
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{
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register struct ifnet *ifp = &sc->sc_arpcom.ac_if;
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/* Address not known. */
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if (ifp->if_addrlist == 0)
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return;
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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)
|
||||
sc->eg_inbuf = malloc(EG_BUFLEN, M_TEMP, M_NOWAIT);
|
||||
sc->eg_incount = 0;
|
||||
|
||||
if (sc->eg_outbuf == NULL)
|
||||
sc->eg_outbuf = malloc(EG_BUFLEN, M_TEMP, M_NOWAIT);
|
||||
|
||||
ifp->if_flags |= IFF_RUNNING;
|
||||
ifp->if_flags &= ~IFF_OACTIVE;
|
||||
|
||||
outb(sc->eg_ctl, EG_CTL_CMDE);
|
||||
|
||||
egstart(ifp);
|
||||
egrecv(sc);
|
||||
}
|
||||
|
||||
static void
|
||||
egrecv(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) == 0)
|
||||
sc->eg_incount++;
|
||||
else
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
egstart(ifp)
|
||||
struct ifnet *ifp;
|
||||
{
|
||||
register struct eg_softc *sc = &eg_softc[ifp->if_unit];
|
||||
struct mbuf *m0, *m;
|
||||
int len;
|
||||
short *ptr;
|
||||
|
||||
/* Don't transmit if interface is busy or not running */
|
||||
if ((sc->sc_arpcom.ac_if.if_flags & (IFF_RUNNING|IFF_OACTIVE)) != IFF_RUNNING)
|
||||
return;
|
||||
|
||||
/* Dequeue the next datagram. */
|
||||
IF_DEQUEUE(&sc->sc_arpcom.ac_if.if_snd, m0);
|
||||
if (m0 == NULL)
|
||||
return;
|
||||
|
||||
sc->sc_arpcom.ac_if.if_flags |= IFF_OACTIVE;
|
||||
|
||||
/* Copy the datagram to the buffer. */
|
||||
len = 0;
|
||||
for (m = m0; m; m = m->m_next) {
|
||||
if (m->m_len == 0)
|
||||
continue;
|
||||
if (len + m->m_len > EG_BUFLEN) {
|
||||
dprintf(("eg#: Packet too large to send\n"));
|
||||
m_freem(m0);
|
||||
sc->sc_arpcom.ac_if.if_flags &= ~IFF_OACTIVE;
|
||||
sc->sc_arpcom.ac_if.if_oerrors++;
|
||||
return;
|
||||
}
|
||||
bcopy(mtod(m, caddr_t), sc->eg_outbuf + len, m->m_len);
|
||||
len += m->m_len;
|
||||
}
|
||||
#if NBPFILTER > 0
|
||||
if (sc->sc_arpcom.ac_if.if_bpf)
|
||||
bpf_mtap(sc->sc_arpcom.ac_if.if_bpf, m0);
|
||||
#endif
|
||||
m_freem(m0);
|
||||
|
||||
/* length must be a minimum of ETHER_MIN_LEN bytes */
|
||||
len = max(len, ETHER_MIN_LEN);
|
||||
|
||||
/* set direction bit: host -> adapter */
|
||||
outb(sc->eg_ctl, inb(sc->eg_ctl) & ~EG_CTL_DIR);
|
||||
|
||||
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 & 0xff; /* length of packet */
|
||||
sc->eg_pcb[7] = (len >> 8) & 0xff;
|
||||
if (egwritePCB(sc) == 0) {
|
||||
for (ptr = (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 */
|
||||
}
|
||||
} else {
|
||||
dprintf(("eg#: egwritePCB in egstart failed\n"));
|
||||
sc->sc_arpcom.ac_if.if_oerrors++;
|
||||
sc->sc_arpcom.ac_if.if_flags &= ~IFF_OACTIVE;
|
||||
}
|
||||
|
||||
/* Set direction bit : Adapter -> host */
|
||||
outb(sc->eg_ctl, inb(sc->eg_ctl) | EG_CTL_DIR);
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
void
|
||||
egintr(int unit)
|
||||
{
|
||||
register struct eg_softc *sc = &eg_softc[unit];
|
||||
int i, len;
|
||||
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);
|
||||
for (ptr = (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);
|
||||
egrecv(sc);
|
||||
sc->sc_arpcom.ac_if.if_ipackets++;
|
||||
egread(sc, sc->eg_inbuf, len);
|
||||
sc->eg_incount--;
|
||||
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(("\tReceive Packets %d\n", i));
|
||||
bcopy(&sc->eg_pcb[6], &i, sizeof(i));
|
||||
dprintf(("\tTransmit Packets %d\n", i));
|
||||
dprintf(("\tCRC errors %d\n", *(short*) &sc->eg_pcb[10]));
|
||||
dprintf(("\talignment errors %d\n", *(short*) &sc->eg_pcb[12]));
|
||||
dprintf(("\tno resources errors %d\n", *(short*) &sc->eg_pcb[14]));
|
||||
dprintf(("\toverrun 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 inline void
|
||||
egread(sc, buf, len)
|
||||
struct eg_softc *sc;
|
||||
caddr_t buf;
|
||||
int len;
|
||||
{
|
||||
struct ifnet *ifp;
|
||||
struct mbuf *m;
|
||||
struct ether_header *eh;
|
||||
|
||||
if (len <= sizeof(struct ether_header) ||
|
||||
len > ETHER_MAX_LEN) {
|
||||
dprintf(("eg#: Unacceptable packet size %d\n", len));
|
||||
sc->sc_arpcom.ac_if.if_ierrors++;
|
||||
return;
|
||||
}
|
||||
|
||||
/* Pull packet off interface. */
|
||||
ifp = &sc->sc_arpcom.ac_if;
|
||||
m = egget(buf, len, ifp);
|
||||
if (m == 0) {
|
||||
dprintf(("eg#: egget returned 0\n"));
|
||||
sc->sc_arpcom.ac_if.if_ierrors++;
|
||||
return;
|
||||
}
|
||||
|
||||
/* 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, 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->m_pkthdr.len -= sizeof(*eh);
|
||||
m->m_len -= sizeof(*eh);
|
||||
m->m_data += sizeof(*eh);
|
||||
|
||||
ether_input(ifp, eh, m);
|
||||
}
|
||||
|
||||
/*
|
||||
* convert buf into mbufs
|
||||
*/
|
||||
static struct mbuf *
|
||||
egget(buf, totlen, ifp)
|
||||
caddr_t buf;
|
||||
int totlen;
|
||||
struct ifnet *ifp;
|
||||
{
|
||||
struct mbuf *top, **mp, *m;
|
||||
int len;
|
||||
|
||||
MGETHDR(m, M_DONTWAIT, MT_DATA);
|
||||
if (m == 0) {
|
||||
dprintf(("eg#: MGETHDR returns 0\n"));
|
||||
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);
|
||||
dprintf(("eg#: MGET returns 0\n"));
|
||||
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 = &eg_softc[ifp->if_unit];
|
||||
register struct ifaddr *ifa = (struct ifaddr *)data;
|
||||
int s, error = 0;
|
||||
|
||||
s = splimp();
|
||||
|
||||
switch (command) {
|
||||
|
||||
case SIOCSIFADDR:
|
||||
ifp->if_flags |= IFF_UP;
|
||||
|
||||
switch (ifa->ifa_addr->sa_family) {
|
||||
#ifdef INET
|
||||
case AF_INET:
|
||||
eginit(sc);
|
||||
arp_ifinit((struct arpcom *)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 *)(sc->sc_arpcom.ac_enaddr);
|
||||
else
|
||||
bcopy(ina->x_host.c_host,
|
||||
sc->sc_arpcom.ac_enaddr,
|
||||
sizeof(sc->sc_arpcom.ac_enaddr));
|
||||
/* 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;
|
||||
#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;
|
||||
}
|
||||
|
||||
splx(s);
|
||||
return error;
|
||||
}
|
||||
|
||||
static void
|
||||
egreset(int unit)
|
||||
{
|
||||
struct eg_softc *sc = &eg_softc[unit];
|
||||
int s;
|
||||
|
||||
log(LOG_ERR, "eg%d: device timeout\n", unit);
|
||||
sc->sc_arpcom.ac_if.if_oerrors++;
|
||||
|
||||
s = splimp();
|
||||
egstop(sc);
|
||||
eginit(sc);
|
||||
splx(s);
|
||||
}
|
||||
|
||||
static void
|
||||
egstop(sc)
|
||||
register struct eg_softc *sc;
|
||||
{
|
||||
|
||||
outb(sc->eg_ctl, 0);
|
||||
}
|
||||
105
sys/i386/isa/if_egreg.h
Normal file
105
sys/i386/isa/if_egreg.h
Normal file
@ -0,0 +1,105 @@
|
||||
/*
|
||||
* Copyright (c) 1993 Dean Huxley (dean@fsa.ca)
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by Dean Huxley.
|
||||
* 4. The name of Dean Huxley may not be used to endorse or promote products
|
||||
* derived from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
* $Id$
|
||||
*/
|
||||
|
||||
/*
|
||||
* Register offsets from base.
|
||||
*/
|
||||
#define EG_COMMAND 0x00
|
||||
#define EG_STATUS 0x02
|
||||
#define EG_DATA 0x04
|
||||
#define EG_CONTROL 0x06
|
||||
|
||||
/*
|
||||
* Host Control Register bits
|
||||
* EG_CTL_ATTN - does a soft reset
|
||||
* EG_CTL_FLSH - flushes the data register
|
||||
* EG_CTL_RESET - does a hard reset
|
||||
* EG_CTL_DMAE - Used with DIR bit, enables DMA transfers to/from data reg.
|
||||
* EG_CTL_DIR - if clear then host -> adapter, if set then adapter -> host
|
||||
* EG_CTL_TCEN - terminal count enable. enables host interrupt after DMA.
|
||||
* EG_CTL_CMDE - command reg interrupt enable. (when it is written)
|
||||
* EG_CTL_HSF1 - Host status flag 1
|
||||
* EG_CTL_HSF2 - Host status flag 2
|
||||
*/
|
||||
|
||||
#define EG_CTL_ATTN 0x80
|
||||
#define EG_CTL_FLSH 0x40
|
||||
#define EG_CTL_RESET (EG_CTL_ATTN|EG_CTL_FLSH)
|
||||
#define EG_CTL_DMAE 0x20
|
||||
#define EG_CTL_DIR 0x10
|
||||
#define EG_CTL_TCEN 0x08
|
||||
#define EG_CTL_CMDE 0x04
|
||||
#define EG_CTL_HSF2 0x02
|
||||
#define EG_CTL_HSF1 0x01
|
||||
|
||||
/*
|
||||
* Host Status Register bits
|
||||
* EG_STAT_HRDY - Data Register ready
|
||||
* EG_STAT_HCRE - Host Command Register empty
|
||||
* EG_STAT_ACRF - Adapter Command register full
|
||||
* EG_STAT_DIR - Direction flag, 0 = host -> adapter, 1 = adapter -> host
|
||||
* EG_STAT_DONE - DMA done
|
||||
* EG_STAT_ASF1 - Adapter status flag 1
|
||||
* EG_STAT_ASF2 - Adapter status flag 2
|
||||
* EG_STAT_ASF3 - Adapter status flag 3
|
||||
*/
|
||||
|
||||
#define EG_STAT_HRDY 0x80
|
||||
#define EG_STAT_HCRE 0x40
|
||||
#define EG_STAT_ACRF 0x20
|
||||
#define EG_STAT_DIR 0x10
|
||||
#define EG_STAT_DONE 0x08
|
||||
#define EG_STAT_ASF3 0x04
|
||||
#define EG_STAT_ASF2 0x02
|
||||
#define EG_STAT_ASF1 0x01
|
||||
|
||||
#define EG_PCB_ACCEPT 1
|
||||
#define EG_PCB_REJECT 2
|
||||
#define EG_PCB_DONE 3
|
||||
#define EG_PCB_STAT(x) ((x)&3)
|
||||
#define EG_PCB_MASK(x) ((x)&~3)
|
||||
|
||||
#define EG_CMD_CONFIG82586 0x02
|
||||
#define EG_CMD_GETEADDR 0x03
|
||||
#define EG_CMD_RECVPACKET 0x08
|
||||
#define EG_CMD_SENDPACKET 0x09
|
||||
#define EG_CMD_GETSTATS 0x0a
|
||||
#define EG_CMD_SETEADDR 0x10
|
||||
#define EG_CMD_GETINFO 0x11
|
||||
|
||||
#define EG_RSP_CONFIG82586 0x32
|
||||
#define EG_RSP_GETEADDR 0x33
|
||||
#define EG_RSP_RECVPACKET 0x38
|
||||
#define EG_RSP_SENDPACKET 0x39
|
||||
#define EG_RSP_GETSTATS 0x3a
|
||||
#define EG_RSP_SETEADDR 0x40
|
||||
#define EG_RSP_GETINFO 0x41
|
||||
Loading…
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Reference in New Issue
Block a user