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      1  1.6     joerg /* $NetBSD: nif.c,v 1.6 2014/08/05 17:55:20 joerg Exp $ */
      2  1.1  nisimura 
      3  1.1  nisimura /*-
      4  1.1  nisimura  * Copyright (c) 2007 The NetBSD Foundation, Inc.
      5  1.1  nisimura  * All rights reserved.
      6  1.1  nisimura  *
      7  1.1  nisimura  * This code is derived from software contributed to The NetBSD Foundation
      8  1.1  nisimura  * by Tohru Nishimura.
      9  1.1  nisimura  *
     10  1.1  nisimura  * Redistribution and use in source and binary forms, with or without
     11  1.1  nisimura  * modification, are permitted provided that the following conditions
     12  1.1  nisimura  * are met:
     13  1.1  nisimura  * 1. Redistributions of source code must retain the above copyright
     14  1.1  nisimura  *    notice, this list of conditions and the following disclaimer.
     15  1.1  nisimura  * 2. Redistributions in binary form must reproduce the above copyright
     16  1.1  nisimura  *    notice, this list of conditions and the following disclaimer in the
     17  1.1  nisimura  *    documentation and/or other materials provided with the distribution.
     18  1.1  nisimura  *
     19  1.1  nisimura  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  1.1  nisimura  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  1.1  nisimura  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  1.1  nisimura  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  1.1  nisimura  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  1.1  nisimura  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  1.1  nisimura  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  1.1  nisimura  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  1.1  nisimura  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  1.1  nisimura  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  1.1  nisimura  * POSSIBILITY OF SUCH DAMAGE.
     30  1.1  nisimura  */
     31  1.1  nisimura 
     32  1.1  nisimura #include <sys/param.h>
     33  1.1  nisimura 
     34  1.1  nisimura #include <netinet/in.h>
     35  1.1  nisimura #include <netinet/in_systm.h>
     36  1.1  nisimura 
     37  1.1  nisimura #include <lib/libsa/stand.h>
     38  1.1  nisimura #include <lib/libsa/net.h>
     39  1.1  nisimura 
     40  1.1  nisimura #include <machine/bootinfo.h>
     41  1.1  nisimura 
     42  1.1  nisimura #include "globals.h"
     43  1.1  nisimura 
     44  1.1  nisimura struct nifdv {
     45  1.1  nisimura 	char *name;
     46  1.1  nisimura 	int (*match)(unsigned, void *);
     47  1.1  nisimura 	void *(*init)(unsigned, void *);
     48  1.1  nisimura 	int (*send)(void *, char *, unsigned);
     49  1.1  nisimura 	int (*recv)(void *, char *, unsigned, unsigned);
     50  1.5       phx 	void (*shutdown)(void *);
     51  1.1  nisimura 	void *priv;
     52  1.1  nisimura };
     53  1.1  nisimura 
     54  1.1  nisimura static struct iodesc netdesc;
     55  1.1  nisimura 
     56  1.1  nisimura static struct nifdv lnifdv[] = {
     57  1.4       phx 	{ "fxp",  fxp_match, fxp_init, fxp_send, fxp_recv },
     58  1.4       phx 	{ "tlp",  tlp_match, tlp_init, tlp_send, tlp_recv },
     59  1.4       phx 	{ "re",   rge_match, rge_init, rge_send, rge_recv },
     60  1.4       phx 	{ "sk",   skg_match, skg_init, skg_send, skg_recv },
     61  1.5       phx 	{ "stge", stg_match, stg_init, stg_send, stg_recv, stg_shutdown },
     62  1.1  nisimura };
     63  1.1  nisimura static int nnifdv = sizeof(lnifdv)/sizeof(lnifdv[0]);
     64  1.1  nisimura 
     65  1.1  nisimura int
     66  1.2  nisimura netif_init(void *self)
     67  1.1  nisimura {
     68  1.2  nisimura 	struct pcidev *pci = self;
     69  1.1  nisimura 	struct iodesc *s;
     70  1.1  nisimura 	struct nifdv *dv;
     71  1.2  nisimura 	unsigned tag;
     72  1.1  nisimura 	int n;
     73  1.1  nisimura 	uint8_t enaddr[6];
     74  1.1  nisimura 	extern struct btinfo_net bi_net;
     75  1.1  nisimura 	extern struct btinfo_rootdevice bi_rdev;
     76  1.1  nisimura 
     77  1.2  nisimura 	tag = pci->bdf;
     78  1.1  nisimura 	for (n = 0; n < nnifdv; n++) {
     79  1.1  nisimura 		dv = &lnifdv[n];
     80  1.1  nisimura 		if ((*dv->match)(tag, NULL) > 0)
     81  1.1  nisimura 			goto found;
     82  1.1  nisimura 	}
     83  1.5       phx 	pci->drv = NULL;
     84  1.1  nisimura 	return 0;
     85  1.1  nisimura   found:
     86  1.2  nisimura 	pci->drv = dv->priv = (*dv->init)(tag, enaddr);
     87  1.1  nisimura 	s = &netdesc;
     88  1.1  nisimura 	s->io_netif = dv;
     89  1.1  nisimura 	memcpy(s->myea, enaddr, sizeof(s->myea));
     90  1.1  nisimura 	/* build btinfo to identify NIF device */
     91  1.6     joerg 	snprintf(bi_net.devname, sizeof(bi_net.devname), "%s", dv->name);
     92  1.1  nisimura 	memcpy(bi_net.mac_address, enaddr, sizeof(bi_net.mac_address));
     93  1.1  nisimura 	bi_net.cookie = tag;
     94  1.6     joerg 	snprintf(bi_rdev.devname, sizeof(bi_rdev.devname), "%s", dv->name);
     95  1.1  nisimura 	bi_rdev.cookie = tag;
     96  1.1  nisimura 	return 1;
     97  1.1  nisimura }
     98  1.1  nisimura 
     99  1.5       phx void
    100  1.5       phx netif_shutdown_all(void)
    101  1.5       phx {
    102  1.5       phx 	struct nifdv *dv;
    103  1.5       phx 
    104  1.5       phx 	/* currently there can be only one NIF */
    105  1.5       phx 	dv = netdesc.io_netif;
    106  1.5       phx 	if (dv != NULL)
    107  1.5       phx 		if (dv->shutdown != NULL)
    108  1.5       phx 			(*dv->shutdown)(dv->priv);
    109  1.5       phx 	memset(&netdesc, 0, sizeof(netdesc));
    110  1.5       phx }
    111  1.5       phx 
    112  1.1  nisimura int
    113  1.1  nisimura netif_open(void *cookie)
    114  1.1  nisimura {
    115  1.5       phx 
    116  1.1  nisimura 	/* single action */
    117  1.1  nisimura 	return 0;
    118  1.1  nisimura }
    119  1.1  nisimura 
    120  1.1  nisimura int
    121  1.1  nisimura netif_close(int sock)
    122  1.1  nisimura {
    123  1.5       phx 
    124  1.1  nisimura 	/* nothing to do for the HW */
    125  1.1  nisimura 	return 0;
    126  1.1  nisimura }
    127  1.1  nisimura 
    128  1.1  nisimura /*
    129  1.1  nisimura  * Send a packet.  The ether header is already there.
    130  1.1  nisimura  * Return the length sent (or -1 on error).
    131  1.1  nisimura  */
    132  1.1  nisimura ssize_t
    133  1.1  nisimura netif_put(struct iodesc *desc, void *pkt, size_t len)
    134  1.1  nisimura {
    135  1.1  nisimura 	struct nifdv *dv = desc->io_netif;
    136  1.1  nisimura 
    137  1.1  nisimura 	return dv ? (*dv->send)(dv->priv, pkt, len) : -1;
    138  1.1  nisimura }
    139  1.1  nisimura 
    140  1.1  nisimura /*
    141  1.1  nisimura  * Receive a packet, including the ether header.
    142  1.1  nisimura  * Return the total length received (or -1 on error).
    143  1.1  nisimura  */
    144  1.1  nisimura ssize_t
    145  1.1  nisimura netif_get(struct iodesc *desc, void *pkt, size_t maxlen, saseconds_t timo)
    146  1.1  nisimura {
    147  1.1  nisimura 	struct nifdv *dv = desc->io_netif;
    148  1.1  nisimura 	int len;
    149  1.1  nisimura 
    150  1.1  nisimura 	len = dv ? (*dv->recv)(dv->priv, pkt, maxlen, timo) : -1;
    151  1.1  nisimura 	if (len == -1)
    152  1.1  nisimura 		printf("timeout\n");
    153  1.1  nisimura 	return len;
    154  1.1  nisimura }
    155  1.1  nisimura 
    156  1.1  nisimura struct iodesc *
    157  1.1  nisimura socktodesc(int num)
    158  1.1  nisimura {
    159  1.1  nisimura 
    160  1.1  nisimura 	return (num == 0) ? &netdesc : NULL;
    161  1.1  nisimura }
    162