1/* $NetBSD: nif.c,v 1.4 2011/03/06 20:36:29 phx Exp $ */ 2 3/*- 4 * Copyright (c) 2007 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Tohru Nishimura. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32#include <sys/param.h> 33 34#include <netinet/in.h> 35#include <netinet/in_systm.h> 36 37#include <lib/libsa/stand.h> 38#include <lib/libsa/net.h> 39 40#include <machine/bootinfo.h> 41 42#include "globals.h" 43 44struct nifdv { 45 char *name; 46 int (*match)(unsigned, void *); 47 void *(*init)(unsigned, void *); 48 int (*send)(void *, char *, unsigned); 49 int (*recv)(void *, char *, unsigned, unsigned); 50 void (*shutdown)(void *); 51 void *priv; 52}; 53 54static struct iodesc netdesc; 55 56static struct nifdv lnifdv[] = { 57 { "fxp", fxp_match, fxp_init, fxp_send, fxp_recv }, 58 { "tlp", tlp_match, tlp_init, tlp_send, tlp_recv }, 59 { "re", rge_match, rge_init, rge_send, rge_recv }, 60 { "sk", skg_match, skg_init, skg_send, skg_recv }, 61 { "stge", stg_match, stg_init, stg_send, stg_recv, stg_shutdown }, 62}; 63static int nnifdv = sizeof(lnifdv)/sizeof(lnifdv[0]); 64 65int 66netif_init(void *self) 67{ 68 struct pcidev *pci = self; 69 struct iodesc *s; 70 struct nifdv *dv; 71 unsigned tag; 72 int n; 73 uint8_t enaddr[6]; 74 extern struct btinfo_net bi_net; 75 extern struct btinfo_rootdevice bi_rdev; 76 77 tag = pci->bdf; 78 for (n = 0; n < nnifdv; n++) { 79 dv = &lnifdv[n]; 80 if ((*dv->match)(tag, NULL) > 0) 81 goto found; 82 } 83 pci->drv = NULL; 84 return 0; 85 found: 86 pci->drv = dv->priv = (*dv->init)(tag, enaddr); 87 s = &netdesc; 88 s->io_netif = dv; 89 memcpy(s->myea, enaddr, sizeof(s->myea)); 90 /* build btinfo to identify NIF device */ 91 snprintf(bi_net.devname, sizeof(bi_net.devname), dv->name); 92 memcpy(bi_net.mac_address, enaddr, sizeof(bi_net.mac_address)); 93 bi_net.cookie = tag; 94 snprintf(bi_rdev.devname, sizeof(bi_rdev.devname), dv->name); 95 bi_rdev.cookie = tag; 96 return 1; 97} 98 99void 100netif_shutdown_all(void) 101{ 102 struct nifdv *dv; 103 104 /* currently there can be only one NIF */ 105 dv = netdesc.io_netif; 106 if (dv != NULL) 107 if (dv->shutdown != NULL) 108 (*dv->shutdown)(dv->priv); 109 memset(&netdesc, 0, sizeof(netdesc)); 110} 111 112int 113netif_open(void *cookie) 114{ 115 116 /* single action */ 117 return 0; 118} 119 120int 121netif_close(int sock) 122{ 123 124 /* nothing to do for the HW */ 125 return 0; 126} 127 128/* 129 * Send a packet. The ether header is already there. 130 * Return the length sent (or -1 on error). 131 */ 132ssize_t 133netif_put(struct iodesc *desc, void *pkt, size_t len) 134{ 135 struct nifdv *dv = desc->io_netif; 136 137 return dv ? (*dv->send)(dv->priv, pkt, len) : -1; 138} 139 140/* 141 * Receive a packet, including the ether header. 142 * Return the total length received (or -1 on error). 143 */ 144ssize_t 145netif_get(struct iodesc *desc, void *pkt, size_t maxlen, saseconds_t timo) 146{ 147 struct nifdv *dv = desc->io_netif; 148 int len; 149 150 len = dv ? (*dv->recv)(dv->priv, pkt, maxlen, timo) : -1; 151 if (len == -1) 152 printf("timeout\n"); 153 return len; 154} 155 156struct iodesc * 157socktodesc(int num) 158{ 159 160 return (num == 0) ? &netdesc : NULL; 161} 162