1 /* $NetBSD: efinet.c,v 1.8 2018/08/18 15:55:19 kre Exp $ */ 2 3 /*- 4 * Copyright (c) 2001 Doug Rabson 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 /* __FBSDID("$FreeBSD: src/sys/boot/efi/libefi/efinet.c,v 1.6 2004/01/04 23:28:16 obrien Exp $"); */ 31 32 #include <sys/param.h> 33 34 #include <lib/libsa/stand.h> 35 #include <lib/libsa/loadfile.h> 36 #include <lib/libsa/net.h> 37 #include <lib/libsa/netif.h> 38 39 #ifdef EFINET_DEBUG 40 #include <lib/libsa/ether_sprintf.c> 41 #endif 42 43 #include <efi.h> 44 #include <efilib.h> 45 46 extern struct netif_driver efi_net; 47 48 int efinet_match(struct netif *, void *); 49 int efinet_probe(struct netif *, void *); 50 void efinet_init(struct iodesc *, void *); 51 int efinet_get(struct iodesc *, void *, size_t, saseconds_t); 52 int efinet_put(struct iodesc *, void *, size_t); 53 void efinet_end(struct netif *); 54 55 struct netif_driver efi_net = { 56 "net", /* netif_bname */ 57 efinet_match, /* netif_match */ 58 efinet_probe, /* netif_probe */ 59 efinet_init, /* netif_init */ 60 efinet_get, /* netif_get */ 61 efinet_put, /* netif_put */ 62 efinet_end, /* netif_end */ 63 0, /* netif_ifs */ 64 0 /* netif_nifs */ 65 }; 66 67 #ifdef EFINET_DEBUG 68 static void 69 dump_mode(EFI_SIMPLE_NETWORK_MODE *mode) 70 { 71 int i; 72 73 printf("State = %x\n", mode->State); 74 printf("HwAddressSize = %u\n", mode->HwAddressSize); 75 printf("MediaHeaderSize = %u\n", mode->MediaHeaderSize); 76 printf("MaxPacketSize = %u\n", mode->MaxPacketSize); 77 printf("NvRamSize = %u\n", mode->NvRamSize); 78 printf("NvRamAccessSize = %u\n", mode->NvRamAccessSize); 79 printf("ReceiveFilterMask = %x\n", mode->ReceiveFilterMask); 80 printf("ReceiveFilterSetting = %u\n", mode->ReceiveFilterSetting); 81 printf("MaxMCastFilterCount = %u\n", mode->MaxMCastFilterCount); 82 printf("MCastFilterCount = %u\n", mode->MCastFilterCount); 83 printf("MCastFilter = {"); 84 for (i = 0; i < mode->MCastFilterCount; i++) 85 printf(" %s", ether_sprintf(mode->MCastFilter[i].Addr)); 86 printf(" }\n"); 87 printf("CurrentAddress = %s\n", 88 ether_sprintf(mode->CurrentAddress.Addr)); 89 printf("BroadcastAddress = %s\n", 90 ether_sprintf(mode->BroadcastAddress.Addr)); 91 printf("PermanentAddress = %s\n", 92 ether_sprintf(mode->PermanentAddress.Addr)); 93 printf("IfType = %u\n", mode->IfType); 94 printf("MacAddressChangeable = %d\n", mode->MacAddressChangeable); 95 printf("MultipleTxSupported = %d\n", mode->MultipleTxSupported); 96 printf("MediaPresentSupported = %d\n", mode->MediaPresentSupported); 97 printf("MediaPresent = %d\n", mode->MediaPresent); 98 } 99 #endif 100 101 int 102 efinet_match(struct netif *nif, void *machdep_hint) 103 { 104 105 return (1); 106 } 107 108 int 109 efinet_probe(struct netif *nif, void *machdep_hint) 110 { 111 112 return (0); 113 } 114 115 int 116 efinet_put(struct iodesc *desc, void *pkt, size_t len) 117 { 118 struct netif *nif = desc->io_netif; 119 EFI_SIMPLE_NETWORK *net; 120 EFI_STATUS status; 121 void *buf; 122 123 net = nif->nif_devdata; 124 125 status = net->Transmit(net, 0, len, pkt, 0, 0, 0); 126 if (status != EFI_SUCCESS) 127 return -1; 128 129 /* Wait for the buffer to be transmitted */ 130 do { 131 buf = 0; /* XXX Is this needed? */ 132 status = net->GetStatus(net, 0, &buf); 133 /* 134 * XXX EFI1.1 and the E1000 card returns a different 135 * address than we gave. Sigh. 136 */ 137 } while (status == EFI_SUCCESS && buf == 0); 138 139 /* XXX How do we deal with status != EFI_SUCCESS now? */ 140 return (status == EFI_SUCCESS) ? len : -1; 141 } 142 143 144 int 145 efinet_get(struct iodesc *desc, void *pkt, size_t len, saseconds_t timeout) 146 { 147 struct netif *nif = desc->io_netif; 148 EFI_SIMPLE_NETWORK *net; 149 EFI_STATUS status; 150 UINTN bufsz; 151 time_t t; 152 char buf[2048]; 153 154 net = nif->nif_devdata; 155 156 t = time(0); 157 while ((time(0) - t) < timeout) { 158 bufsz = sizeof(buf); 159 status = net->Receive(net, 0, &bufsz, buf, 0, 0, 0); 160 if (status == EFI_SUCCESS) { 161 /* 162 * XXX EFI1.1 and the E1000 card trash our 163 * workspace if we do not do this silly copy. 164 * Either they are not respecting the len 165 * value or do not like the alignment. 166 */ 167 if (bufsz > len) 168 bufsz = len; 169 memcpy(pkt, buf, bufsz); 170 return bufsz; 171 } 172 if (status != EFI_NOT_READY) 173 return 0; 174 } 175 176 return 0; 177 } 178 179 void 180 efinet_init(struct iodesc *desc, void *machdep_hint) 181 { 182 struct netif *nif = desc->io_netif; 183 EFI_SIMPLE_NETWORK *net; 184 EFI_STATUS status; 185 186 net = nif->nif_driver->netif_ifs[nif->nif_unit].dif_private; 187 nif->nif_devdata = net; 188 189 if (net->Mode->State == EfiSimpleNetworkStopped) { 190 status = net->Start(net); 191 if (status != EFI_SUCCESS) { 192 printf("net%d: cannot start interface (status=%ld)\n", 193 nif->nif_unit, status); 194 return; 195 } 196 } 197 198 if (net->Mode->State != EfiSimpleNetworkInitialized) { 199 status = net->Initialize(net, 0, 0); 200 if (status != EFI_SUCCESS) { 201 printf("net%d: cannot init. interface (status=%ld)\n", 202 nif->nif_unit, status); 203 return; 204 } 205 } 206 207 if (net->Mode->ReceiveFilterSetting == 0) { 208 UINT32 mask = EFI_SIMPLE_NETWORK_RECEIVE_UNICAST | 209 EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST; 210 211 status = net->ReceiveFilters(net, mask, 0, FALSE, 0, 0); 212 if (status != EFI_SUCCESS) { 213 printf("net%d: cannot set rx. filters (status=%ld)\n", 214 nif->nif_unit, status); 215 return; 216 } 217 } 218 219 #ifdef EFINET_DEBUG 220 dump_mode(net->Mode); 221 #endif 222 223 memcpy(desc->myea, net->Mode->CurrentAddress.Addr, 6); 224 desc->xid = 1; 225 226 return; 227 } 228 229 void 230 efinet_init_driver(void) 231 { 232 EFI_STATUS status; 233 UINTN sz; 234 static EFI_GUID netid = EFI_SIMPLE_NETWORK_PROTOCOL_GUID; 235 EFI_HANDLE *handles; 236 int nifs, i; 237 #define MAX_INTERFACES 4 238 static struct netif_dif difs[MAX_INTERFACES]; 239 static struct netif_stats stats[MAX_INTERFACES]; 240 241 sz = 0; 242 status = BS->LocateHandle(ByProtocol, &netid, 0, &sz, 0); 243 if (status != EFI_BUFFER_TOO_SMALL) 244 return; 245 handles = (EFI_HANDLE *) alloc(sz); 246 status = BS->LocateHandle(ByProtocol, &netid, 0, &sz, handles); 247 if (EFI_ERROR(status)) { 248 free(handles); 249 return; 250 } 251 252 nifs = sz / sizeof(EFI_HANDLE); 253 if (nifs > MAX_INTERFACES) 254 nifs = MAX_INTERFACES; 255 256 efi_net.netif_nifs = nifs; 257 efi_net.netif_ifs = difs; 258 259 memset(stats, 0, sizeof(stats)); 260 for (i = 0; i < nifs; i++) { 261 struct netif_dif *dif = &efi_net.netif_ifs[i]; 262 dif->dif_unit = i; 263 dif->dif_nsel = 1; 264 dif->dif_stats = &stats[i]; 265 266 BS->HandleProtocol(handles[i], &netid, 267 (VOID**) &dif->dif_private); 268 } 269 270 return; 271 } 272 273 void 274 efinet_end(struct netif *nif) 275 { 276 EFI_SIMPLE_NETWORK *net = nif->nif_devdata; 277 278 net->Shutdown(net); 279 } 280
Indexes created Tue Sep 23 07:09:52 GMT 2025