9ea2d6b973
than to use the one configured by EISA, and perhaps had some other side effects - according to Pavel Cahyna, NOT doing the reset improved receive performance significantly. This also resolves old thread on current-users regarding this EISA card.
298 lines
9.3 KiB
C
298 lines
9.3 KiB
C
/* $NetBSD: if_ep_eisa.c,v 1.28 2003/02/08 12:06:13 jdolecek Exp $ */
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/*-
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* Copyright (c) 1998 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
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* NASA Ames Research Center.
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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 NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Copyright (c) 1997 Jonathan Stone <jonathan@NetBSD.org>
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* Copyright (c) 1994 Herb Peyerl <hpeyerl@beer.org>
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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 Herb Peyerl.
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* This product includes software developed by Jonathan Stone.
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* 4. The name of Herb Peyerl or Jonathan Stone may not be used to endorse
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* or promote products derived from this software without specific
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* 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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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: if_ep_eisa.c,v 1.28 2003/02/08 12:06:13 jdolecek Exp $");
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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 <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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#include <net/if.h>
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#include <net/if_dl.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/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/bus.h>
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#include <machine/intr.h>
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#include <dev/mii/miivar.h>
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#include <dev/ic/elink3var.h>
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#include <dev/ic/elink3reg.h>
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#include <dev/eisa/eisareg.h>
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#include <dev/eisa/eisavar.h>
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#include <dev/eisa/eisadevs.h>
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int ep_eisa_match __P((struct device *, struct cfdata *, void *));
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void ep_eisa_attach __P((struct device *, struct device *, void *));
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CFATTACH_DECL(ep_eisa, sizeof(struct ep_softc),
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ep_eisa_match, ep_eisa_attach, NULL, NULL);
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/* XXX move these somewhere else */
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/* While attaching we need a few special EISA registers of the card,
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these are mapped at slotbase+EP_EISA_CFG_BASE with len EP_EISA_CFG_SIZE */
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#define EP_EISA_CFG_BASE 0x0c80
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#define EP_EISA_CFG_CONTROL 0x0004 /* 1 byte */
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#define EP_EISA_CFG_RESOURCE 0x0008 /* 2 byte */
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#define EP_EISA_CFG_SIZE 0x000a
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/* The generic driver backend only needs access to the standard ports,
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mapped at the beginning of the eisa slot space */
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#define EP_IOPORT_OFFSET 0x0000
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#define EP_IOPORT_SIZE 0x0020
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/* Bits for the eisa control register */
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#define EISA_RESET 0x04
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#define EISA_ERROR 0x02
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#define EISA_ENABLE 0x01
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struct ep_eisa_product {
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const char *eep_eisaid; /* EISA ID */
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u_short eep_chipset; /* 3Com chipset used */
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int eep_flags; /* initial softc flags */
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const char *eep_name; /* device name */
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} ep_eisa_products[] = {
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{ "TCM5091", ELINK_CHIPSET_3C509,
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0, EISA_PRODUCT_TCM5091 },
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{ "TCM5092", ELINK_CHIPSET_3C509,
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0, EISA_PRODUCT_TCM5092 },
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{ "TCM5093", ELINK_CHIPSET_3C509,
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0, EISA_PRODUCT_TCM5093 },
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{ "TCM5094", ELINK_CHIPSET_3C509,
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0, EISA_PRODUCT_TCM5094 },
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{ "TCM5095", ELINK_CHIPSET_3C509,
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0, EISA_PRODUCT_TCM5095 },
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{ "TCM5098", ELINK_CHIPSET_3C509,
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0, EISA_PRODUCT_TCM5098 },
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/*
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* Note: The 3c597 Fast Etherlink MII (TCM5972) is an
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* MII connector for an external PHY. We treat it as
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* `manual' in the core driver.
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*/
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{ "TCM5920", ELINK_CHIPSET_VORTEX,
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0, EISA_PRODUCT_TCM5920 },
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{ "TCM5970", ELINK_CHIPSET_VORTEX,
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0, EISA_PRODUCT_TCM5970 },
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{ "TCM5971", ELINK_CHIPSET_VORTEX,
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0, EISA_PRODUCT_TCM5971 },
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{ "TCM5972", ELINK_CHIPSET_VORTEX,
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0, EISA_PRODUCT_TCM5972 },
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{ NULL, 0,
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0, NULL },
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};
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struct ep_eisa_product *ep_eisa_lookup __P((struct eisa_attach_args *));
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struct ep_eisa_product *
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ep_eisa_lookup(ea)
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struct eisa_attach_args *ea;
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{
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struct ep_eisa_product *eep;
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for (eep = ep_eisa_products; eep->eep_name != NULL; eep++)
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if (strcmp(ea->ea_idstring, eep->eep_eisaid) == 0)
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return (eep);
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return (NULL);
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}
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int
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ep_eisa_match(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 eisa_attach_args *ea = aux;
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/* must match one of our known ID strings */
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if (ep_eisa_lookup(ea) != NULL)
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return (1);
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return (0);
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}
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void
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ep_eisa_attach(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 ep_softc *sc = (void *)self;
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struct eisa_attach_args *ea = aux;
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bus_space_tag_t iot = ea->ea_iot;
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bus_space_handle_t ioh, ioh_cfg;
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eisa_chipset_tag_t ec = ea->ea_ec;
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eisa_intr_handle_t ih;
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const char *intrstr;
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struct ep_eisa_product *eep;
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u_int irq;
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/* Map i/o space. */
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if (bus_space_map(iot, EISA_SLOT_ADDR(ea->ea_slot) + EP_EISA_CFG_BASE,
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EP_EISA_CFG_SIZE, 0, &ioh_cfg)) {
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printf("\n");
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panic("ep_eisa_attach: can't map eisa cfg i/o space");
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}
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if (bus_space_map(iot, EISA_SLOT_ADDR(ea->ea_slot) + EP_IOPORT_OFFSET,
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EP_IOPORT_SIZE, 0, &ioh)) {
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printf("\n");
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panic("ep_eisa_attach: can't map i/o space");
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}
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sc->sc_ioh = ioh;
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sc->sc_iot = iot;
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bus_space_write_1(iot, ioh_cfg, EP_EISA_CFG_CONTROL, EISA_ENABLE);
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delay(4000);
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/* Read the IRQ from the card. */
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irq = bus_space_read_2(iot, ioh_cfg, EP_EISA_CFG_RESOURCE) >> 12;
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eep = ep_eisa_lookup(ea);
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if (eep == NULL) {
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printf("\n");
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panic("ep_eisa_attach: impossible");
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}
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/* we don't need access to the config registers any more, but
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noone else should be able to map this space, so keep it
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reserved? */
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#if 0
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bus_space_unmap(iot, ioh_cfg, EP_EISA_CFG_SIZE);
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#endif
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printf(": %s\n", eep->eep_name);
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sc->enable = NULL;
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sc->disable = NULL;
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sc->enabled = 1;
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sc->bustype = ELINK_BUS_EISA;
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sc->ep_flags = eep->eep_flags;
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if (eisa_intr_map(ec, irq, &ih)) {
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printf("%s: couldn't map interrupt (%u)\n",
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sc->sc_dev.dv_xname, irq);
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return;
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}
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intrstr = eisa_intr_string(ec, ih);
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sc->sc_ih = eisa_intr_establish(ec, ih, IST_EDGE, IPL_NET,
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epintr, sc);
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if (sc->sc_ih == NULL) {
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printf("%s: couldn't establish interrupt",
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sc->sc_dev.dv_xname);
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if (intrstr != NULL)
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printf(" at %s", intrstr);
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printf("\n");
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return;
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}
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if (intrstr != NULL)
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printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname,
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intrstr);
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epconfig(sc, eep->eep_chipset, NULL);
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}
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