1 /* $NetBSD: efinet.c,v 1.2 2006/04/22 07:58:53 cherry 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 #include <netinet/in.h> 34 #include <netinet/in_systm.h> 35 36 #include <lib/libsa/stand.h> 37 #include <net.h> 38 #include <netif.h> 39 40 #include <efi.h> 41 #include <efilib.h> 42 43 extern struct netif_driver efi_net; 44 45 #ifdef EFINET_DEBUG 46 static void 47 dump_mode(EFI_SIMPLE_NETWORK_MODE *mode) 48 { 49 int i; 50 51 printf("State = %x\n", mode->State); 52 printf("HwAddressSize = %u\n", mode->HwAddressSize); 53 printf("MediaHeaderSize = %u\n", mode->MediaHeaderSize); 54 printf("MaxPacketSize = %u\n", mode->MaxPacketSize); 55 printf("NvRamSize = %u\n", mode->NvRamSize); 56 printf("NvRamAccessSize = %u\n", mode->NvRamAccessSize); 57 printf("ReceiveFilterMask = %x\n", mode->ReceiveFilterMask); 58 printf("ReceiveFilterSetting = %u\n", mode->ReceiveFilterSetting); 59 printf("MaxMCastFilterCount = %u\n", mode->MaxMCastFilterCount); 60 printf("MCastFilterCount = %u\n", mode->MCastFilterCount); 61 printf("MCastFilter = {"); 62 for (i = 0; i < mode->MCastFilterCount; i++) 63 printf(" %s", ether_sprintf(mode->MCastFilter[i].Addr)); 64 printf(" }\n"); 65 printf("CurrentAddress = %s\n", 66 ether_sprintf(mode->CurrentAddress.Addr)); 67 printf("BroadcastAddress = %s\n", 68 ether_sprintf(mode->BroadcastAddress.Addr)); 69 printf("PermanentAddress = %s\n", 70 ether_sprintf(mode->PermanentAddress.Addr)); 71 printf("IfType = %u\n", mode->IfType); 72 printf("MacAddressChangeable = %d\n", mode->MacAddressChangeable); 73 printf("MultipleTxSupported = %d\n", mode->MultipleTxSupported); 74 printf("MediaPresentSupported = %d\n", mode->MediaPresentSupported); 75 printf("MediaPresent = %d\n", mode->MediaPresent); 76 } 77 #endif 78 79 int 80 efinet_match(struct netif *nif, void *machdep_hint) 81 { 82 83 return (1); 84 } 85 86 int 87 efinet_probe(struct netif *nif, void *machdep_hint) 88 { 89 90 return (0); 91 } 92 93 int 94 efinet_put(struct iodesc *desc, void *pkt, size_t len) 95 { 96 struct netif *nif = desc->io_netif; 97 EFI_SIMPLE_NETWORK *net; 98 EFI_STATUS status; 99 void *buf; 100 101 net = nif->nif_devdata; 102 103 status = net->Transmit(net, 0, len, pkt, 0, 0, 0); 104 if (status != EFI_SUCCESS) 105 return -1; 106 107 /* Wait for the buffer to be transmitted */ 108 do { 109 buf = 0; /* XXX Is this needed? */ 110 status = net->GetStatus(net, 0, &buf); 111 /* 112 * XXX EFI1.1 and the E1000 card returns a different 113 * address than we gave. Sigh. 114 */ 115 } while (status == EFI_SUCCESS && buf == 0); 116 117 /* XXX How do we deal with status != EFI_SUCCESS now? */ 118 return (status == EFI_SUCCESS) ? len : -1; 119 } 120 121 122 int 123 efinet_get(struct iodesc *desc, void *pkt, size_t len, time_t timeout) 124 { 125 struct netif *nif = desc->io_netif; 126 EFI_SIMPLE_NETWORK *net; 127 EFI_STATUS status; 128 UINTN bufsz; 129 time_t t; 130 char buf[2048]; 131 132 net = nif->nif_devdata; 133 134 t = time(0); 135 while ((time(0) - t) < timeout) { 136 bufsz = sizeof(buf); 137 status = net->Receive(net, 0, &bufsz, buf, 0, 0, 0); 138 if (status == EFI_SUCCESS) { 139 /* 140 * XXX EFI1.1 and the E1000 card trash our 141 * workspace if we do not do this silly copy. 142 * Either they are not respecting the len 143 * value or do not like the alignment. 144 */ 145 if (bufsz > len) 146 bufsz = len; 147 bcopy(buf, pkt, bufsz); 148 return bufsz; 149 } 150 if (status != EFI_NOT_READY) 151 return 0; 152 } 153 154 return 0; 155 } 156 157 void 158 efinet_init(struct iodesc *desc, void *machdep_hint) 159 { 160 struct netif *nif = desc->io_netif; 161 EFI_SIMPLE_NETWORK *net; 162 EFI_STATUS status; 163 164 net = nif->nif_driver->netif_ifs[nif->nif_unit].dif_private; 165 nif->nif_devdata = net; 166 167 if (net->Mode->State == EfiSimpleNetworkStopped) { 168 status = net->Start(net); 169 if (status != EFI_SUCCESS) { 170 printf("net%d: cannot start interface (status=%ld)\n", 171 nif->nif_unit, status); 172 return; 173 } 174 } 175 176 if (net->Mode->State != EfiSimpleNetworkInitialized) { 177 status = net->Initialize(net, 0, 0); 178 if (status != EFI_SUCCESS) { 179 printf("net%d: cannot init. interface (status=%ld)\n", 180 nif->nif_unit, status); 181 return; 182 } 183 } 184 185 if (net->Mode->ReceiveFilterSetting == 0) { 186 UINT32 mask = EFI_SIMPLE_NETWORK_RECEIVE_UNICAST | 187 EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST; 188 189 status = net->ReceiveFilters(net, mask, 0, FALSE, 0, 0); 190 if (status != EFI_SUCCESS) { 191 printf("net%d: cannot set rx. filters (status=%ld)\n", 192 nif->nif_unit, status); 193 return; 194 } 195 } 196 197 #ifdef EFINET_DEBUG 198 dump_mode(net->Mode); 199 #endif 200 201 bcopy(net->Mode->CurrentAddress.Addr, desc->myea, 6); 202 desc->xid = 1; 203 204 return; 205 } 206 207 void 208 efinet_init_driver() 209 { 210 EFI_STATUS status; 211 UINTN sz; 212 static EFI_GUID netid = EFI_SIMPLE_NETWORK_PROTOCOL; 213 EFI_HANDLE *handles; 214 int nifs, i; 215 #define MAX_INTERFACES 4 216 static struct netif_dif difs[MAX_INTERFACES]; 217 static struct netif_stats stats[MAX_INTERFACES]; 218 219 sz = 0; 220 status = BS->LocateHandle(ByProtocol, &netid, 0, &sz, 0); 221 if (status != EFI_BUFFER_TOO_SMALL) 222 return; 223 handles = (EFI_HANDLE *) alloc(sz); 224 status = BS->LocateHandle(ByProtocol, &netid, 0, &sz, handles); 225 if (EFI_ERROR(status)) { 226 free(handles, sz); 227 return; 228 } 229 230 nifs = sz / sizeof(EFI_HANDLE); 231 if (nifs > MAX_INTERFACES) 232 nifs = MAX_INTERFACES; 233 234 efi_net.netif_nifs = nifs; 235 efi_net.netif_ifs = difs; 236 237 bzero(stats, sizeof(stats)); 238 for (i = 0; i < nifs; i++) { 239 struct netif_dif *dif = &efi_net.netif_ifs[i]; 240 dif->dif_unit = i; 241 dif->dif_nsel = 1; 242 dif->dif_stats = &stats[i]; 243 244 BS->HandleProtocol(handles[i], &netid, 245 (VOID**) &dif->dif_private); 246 } 247 248 return; 249 } 250 251 void 252 efinet_end(struct netif *nif) 253 { 254 EFI_SIMPLE_NETWORK *net = nif->nif_devdata; 255 256 net->Shutdown(net); 257 } 258 259 struct netif_driver efi_net = { 260 "net", /* netif_bname */ 261 efinet_match, /* netif_match */ 262 efinet_probe, /* netif_probe */ 263 efinet_init, /* netif_init */ 264 efinet_get, /* netif_get */ 265 efinet_put, /* netif_put */ 266 efinet_end, /* netif_end */ 267 0, /* netif_ifs */ 268 0 /* netif_nifs */ 269 }; 270 271