a63b802fd7
- introduce match() routine to stylise the way to pickup a PCI device driver. - fix tlp.c error in the previous commit.
168 lines
4.1 KiB
C
168 lines
4.1 KiB
C
/* $NetBSD: nif.c,v 1.6 2008/05/14 23:14:11 nisimura Exp $ */
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/*-
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* Copyright (c) 2007 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 Tohru Nishimura.
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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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*
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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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#include <sys/param.h>
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#include <netinet/in.h>
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#include <netinet/in_systm.h>
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#include <lib/libsa/stand.h>
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#include <lib/libsa/net.h>
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struct nifdv {
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char *name;
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int (*match)(unsigned, void *);
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void *(*init)(unsigned, void *);
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int (*send)(void *, char *, unsigned);
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int (*recv)(void *, char *, unsigned, unsigned);
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int (*halt)(void *, int);
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void *priv;
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};
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int netif_init(unsigned);
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int netif_open(void *);
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int netif_close(int);
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static struct iodesc netdesc;
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#define NIF_DECL(xxx) \
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int xxx ## _match(unsigned, void *); \
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void * xxx ## _init(unsigned, void *); \
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int xxx ## _send(void *, char *, unsigned); \
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int xxx ## _recv(void *, char *, unsigned, unsigned)
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NIF_DECL(fxp);
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NIF_DECL(tlp);
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NIF_DECL(nvt);
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NIF_DECL(sip);
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NIF_DECL(pcn);
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NIF_DECL(vge);
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NIF_DECL(rge);
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NIF_DECL(wm);
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static struct nifdv vnifdv[] = {
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{ "fxp", fxp_match, fxp_init, fxp_send, fxp_recv },
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{ "tlp", tlp_match, tlp_init, tlp_send, tlp_recv },
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{ "nvt", nvt_match, nvt_init, nvt_send, nvt_recv },
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{ "sip", sip_match, sip_init, sip_send, sip_recv },
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{ "pcn", pcn_match, pcn_init, pcn_send, pcn_recv },
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{ "vge", vge_match, vge_init, vge_send, vge_recv },
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{ "rge", rge_match, rge_init, rge_send, rge_recv },
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{ "wm", wm_match, wm_init, wm_send, wm_recv }
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};
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static int nnifdv = sizeof(vnifdv)/sizeof(vnifdv[0]);
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int
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netif_init(tag)
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unsigned tag;
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{
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struct iodesc *s;
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struct nifdv *dv;
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int n;
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uint8_t enaddr[6];
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extern uint8_t en[6];
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extern char rootdev[4];
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for (n = 0; n < nnifdv; n++) {
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dv = &vnifdv[n];
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if ((*dv->match)(tag, NULL) > 0)
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goto found;
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}
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return 0;
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found:
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dv->priv = (*dv->init)(tag, enaddr);
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s = &netdesc;
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s->io_netif = dv;
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memcpy(s->myea, enaddr, sizeof(s->myea));
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memcpy(en, enaddr, sizeof(en));
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snprintf(rootdev, sizeof(rootdev), "%s", dv->name);
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return 1;
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}
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int
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netif_open(cookie)
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void *cookie;
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{
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/* single action */
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return 0;
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}
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int
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netif_close(sock)
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int sock;
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{
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/* nothing to do for the HW */
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return 0;
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}
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/*
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* Send a packet. The ether header is already there.
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* Return the length sent (or -1 on error).
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*/
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ssize_t
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netif_put(desc, pkt, len)
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struct iodesc *desc;
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void *pkt;
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size_t len;
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{
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struct nifdv *dv = desc->io_netif;
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return (*dv->send)(dv->priv, pkt, len);
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}
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/*
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* Receive a packet, including the ether header.
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* Return the total length received (or -1 on error).
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*/
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ssize_t
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netif_get(desc, pkt, maxlen, timo)
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struct iodesc *desc;
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void *pkt;
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size_t maxlen;
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time_t timo;
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{
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struct nifdv *dv = desc->io_netif;
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int len;
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len = (*dv->recv)(dv->priv, pkt, maxlen, timo);
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if (len == -1)
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printf("timeout\n");
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return len;
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}
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struct iodesc *
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socktodesc(num)
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int num;
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{
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return (num == 0) ? &netdesc : NULL;
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}
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