10fe49d72c
#if NBPFILTER is no longer required in the client. This change doesn't yet add support for loading bpf as a module, since drivers can register before bpf is attached. However, callers of bpf can now be modularized. Dynamically loadable bpf could probably be done fairly easily with coordination from the stub driver and the real driver by registering attachments in the stub before the real driver is loaded and doing a handoff. ... and I'm not going to ponder the depths of unload here. Tested with i386/MONOLITHIC, modified MONOLITHIC without bpf and rump.
205 lines
6.7 KiB
C
205 lines
6.7 KiB
C
/* $NetBSD: if_le_dec.c,v 1.20 2010/01/19 22:06:23 pooka Exp $ */
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/*-
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Ralph Campbell and Rick Macklem.
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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. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)if_le.c 8.2 (Berkeley) 11/16/93
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*/
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/*-
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* Copyright (c) 1997 Jonathan Stone. All rights reserved.
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* Copyright (c) 1995 Charles M. Hannum. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Ralph Campbell and Rick Macklem.
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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 the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)if_le.c 8.2 (Berkeley) 11/16/93
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: if_le_dec.c,v 1.20 2010/01/19 22:06:23 pooka Exp $");
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#include "opt_inet.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/syslog.h>
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#include <sys/socket.h>
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#include <sys/device.h>
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#include <net/if.h>
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#include <net/if_ether.h>
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#include <net/if_media.h>
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#ifdef INET
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#include <netinet/in.h>
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#include <netinet/if_inarp.h>
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#endif
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#include <dev/ic/lancereg.h>
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#include <dev/ic/lancevar.h>
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#include <dev/ic/am7990reg.h>
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#include <dev/ic/am7990var.h>
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#include <dev/tc/if_levar.h>
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#include <dev/tc/tcvar.h>
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#include <sys/bus.h>
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/* access LANCE registers */
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void le_dec_writereg(volatile uint16_t *regptr, uint16_t val);
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#define LERDWR(cntl, src, dst) { (dst) = (src); tc_mb(); }
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#define LEWREG(src, dst) le_dec_writereg(&(dst), (src))
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#if defined(_KERNEL_OPT)
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#include "opt_ddb.h"
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#endif
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#ifdef DDB
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#define integrate
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#define hide
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#else
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#define integrate static inline
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#define hide static
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#endif
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hide void le_dec_wrcsr(struct lance_softc *, uint16_t, uint16_t);
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hide uint16_t le_dec_rdcsr(struct lance_softc *, uint16_t);
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void
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dec_le_common_attach(struct am7990_softc *sc, uint8_t *eap)
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{
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int i;
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sc->lsc.sc_rdcsr = le_dec_rdcsr;
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sc->lsc.sc_wrcsr = le_dec_wrcsr;
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sc->lsc.sc_hwinit = NULL;
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sc->lsc.sc_conf3 = 0;
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sc->lsc.sc_addr = 0;
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sc->lsc.sc_memsize = 65536;
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/*
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* Get the ethernet address out of rom
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*/
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for (i = 0; i < sizeof(sc->lsc.sc_enaddr); i++) {
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sc->lsc.sc_enaddr[i] = *eap;
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eap += 4;
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}
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am7990_config(sc);
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}
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hide void
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le_dec_wrcsr(struct lance_softc *sc, uint16_t port, uint16_t val)
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{
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struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1;
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LEWREG(port, ler1->ler1_rap);
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LERDWR(port, val, ler1->ler1_rdp);
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}
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hide uint16_t
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le_dec_rdcsr(struct lance_softc *sc, uint16_t port)
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{
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struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1;
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uint16_t val;
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LEWREG(port, ler1->ler1_rap);
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LERDWR(0, ler1->ler1_rdp, val);
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return (val);
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}
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/*
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* Write a lance register port, reading it back to ensure success. This seems
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* to be necessary during initialization, since the chip appears to be a bit
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* pokey sometimes.
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*/
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void
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le_dec_writereg(volatile uint16_t *regptr, uint16_t val)
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{
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int i = 0;
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while (*regptr != val) {
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*regptr = val;
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tc_mb();
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if (++i > 10000) {
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printf("le: Reg did not settle (to x%x): x%x\n", val,
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*regptr);
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return;
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}
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DELAY(100);
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}
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}
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/*
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* Routines for accessing the transmit and receive buffers are provided
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* by am7990.c, because of the LE_NEED_BUF_* macros defined above.
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* Unfortunately, CPU addressing of these buffers is done in one of
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* 3 ways:
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* - contiguous (for the 3max and turbochannel option card)
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* - gap2, which means shorts (2 bytes) interspersed with short (2 byte)
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* spaces (for the pmax, vax 3400, and ioasic LANCE descriptors)
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* - gap16, which means 16bytes interspersed with 16byte spaces
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* for buffers which must begin on a 32byte boundary (for 3min, maxine,
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* and alpha)
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* The buffer offset is the logical byte offset, assuming contiguous storage.
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*/
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