1/*- 2 * Copyright (c) 2001 Doug Rabson 3 * Copyright (c) 2002, 2006 Marcel Moolenaar 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28#include <sys/cdefs.h> 29__FBSDID("$FreeBSD$"); 30 31#include <sys/param.h> 32#include <netinet/in.h> 33#include <netinet/in_systm.h> 34 35#include <stand.h> 36#include <net.h> 37#include <netif.h> 38 39#include <dev_net.c> 40 41#include <efi.h> 42#include <efilib.h> 43 44static EFI_GUID sn_guid = EFI_SIMPLE_NETWORK_PROTOCOL; 45 46static void efinet_end(struct netif *); 47static int efinet_get(struct iodesc *, void *, size_t, time_t); 48static void efinet_init(struct iodesc *, void *); 49static int efinet_match(struct netif *, void *); 50static int efinet_probe(struct netif *, void *); 51static int efinet_put(struct iodesc *, void *, size_t); 52 53struct netif_driver efinetif = { 54 .netif_bname = "efinet", 55 .netif_match = efinet_match, 56 .netif_probe = efinet_probe, 57 .netif_init = efinet_init, 58 .netif_get = efinet_get, 59 .netif_put = efinet_put, 60 .netif_end = efinet_end, 61 .netif_ifs = NULL, 62 .netif_nifs = 0 63}; 64 65#ifdef EFINET_DEBUG 66static void 67dump_mode(EFI_SIMPLE_NETWORK_MODE *mode) 68{ 69 int i; 70 71 printf("State = %x\n", mode->State); 72 printf("HwAddressSize = %u\n", mode->HwAddressSize); 73 printf("MediaHeaderSize = %u\n", mode->MediaHeaderSize); 74 printf("MaxPacketSize = %u\n", mode->MaxPacketSize); 75 printf("NvRamSize = %u\n", mode->NvRamSize); 76 printf("NvRamAccessSize = %u\n", mode->NvRamAccessSize); 77 printf("ReceiveFilterMask = %x\n", mode->ReceiveFilterMask); 78 printf("ReceiveFilterSetting = %u\n", mode->ReceiveFilterSetting); 79 printf("MaxMCastFilterCount = %u\n", mode->MaxMCastFilterCount); 80 printf("MCastFilterCount = %u\n", mode->MCastFilterCount); 81 printf("MCastFilter = {"); 82 for (i = 0; i < mode->MCastFilterCount; i++) 83 printf(" %s", ether_sprintf(mode->MCastFilter[i].Addr)); 84 printf(" }\n"); 85 printf("CurrentAddress = %s\n", 86 ether_sprintf(mode->CurrentAddress.Addr)); 87 printf("BroadcastAddress = %s\n", 88 ether_sprintf(mode->BroadcastAddress.Addr)); 89 printf("PermanentAddress = %s\n", 90 ether_sprintf(mode->PermanentAddress.Addr)); 91 printf("IfType = %u\n", mode->IfType); 92 printf("MacAddressChangeable = %d\n", mode->MacAddressChangeable); 93 printf("MultipleTxSupported = %d\n", mode->MultipleTxSupported); 94 printf("MediaPresentSupported = %d\n", mode->MediaPresentSupported); 95 printf("MediaPresent = %d\n", mode->MediaPresent); 96} 97#endif 98 99static int 100efinet_match(struct netif *nif, void *machdep_hint) 101{ 102 103 return (1); 104} 105 106static int 107efinet_probe(struct netif *nif, void *machdep_hint) 108{ 109 110 return (0); 111} 112 113static int 114efinet_put(struct iodesc *desc, void *pkt, size_t len) 115{ 116 struct netif *nif = desc->io_netif; 117 EFI_SIMPLE_NETWORK *net; 118 EFI_STATUS status; 119 void *buf; 120 121 net = nif->nif_devdata; 122 123 status = net->Transmit(net, 0, len, pkt, 0, 0, 0); 124 if (status != EFI_SUCCESS) 125 return (-1); 126 127 /* Wait for the buffer to be transmitted */ 128 do { 129 buf = 0; /* XXX Is this needed? */ 130 status = net->GetStatus(net, 0, &buf); 131 /* 132 * XXX EFI1.1 and the E1000 card returns a different 133 * address than we gave. Sigh. 134 */ 135 } while (status == EFI_SUCCESS && buf == 0); 136 137 /* XXX How do we deal with status != EFI_SUCCESS now? */ 138 return ((status == EFI_SUCCESS) ? len : -1); 139} 140 141static int 142efinet_get(struct iodesc *desc, void *pkt, size_t len, time_t timeout) 143{ 144 struct netif *nif = desc->io_netif; 145 EFI_SIMPLE_NETWORK *net; 146 EFI_STATUS status; 147 UINTN bufsz; 148 time_t t; 149 char buf[2048]; 150 151 net = nif->nif_devdata; 152 153 t = time(0); 154 while ((time(0) - t) < timeout) { 155 bufsz = sizeof(buf); 156 status = net->Receive(net, 0, &bufsz, buf, 0, 0, 0); 157 if (status == EFI_SUCCESS) { 158 /* 159 * XXX EFI1.1 and the E1000 card trash our 160 * workspace if we do not do this silly copy. 161 * Either they are not respecting the len 162 * value or do not like the alignment. 163 */ 164 if (bufsz > len) 165 bufsz = len; 166 bcopy(buf, pkt, bufsz); 167 return (bufsz); 168 } 169 if (status != EFI_NOT_READY) 170 return (0); 171 } 172 173 return (0); 174} 175 176static void 177efinet_init(struct iodesc *desc, void *machdep_hint) 178{ 179 struct netif *nif = desc->io_netif; 180 EFI_SIMPLE_NETWORK *net; 181 EFI_HANDLE h; 182 EFI_STATUS status; 183 184 h = nif->nif_driver->netif_ifs[nif->nif_unit].dif_private; 185 status = BS->HandleProtocol(h, &sn_guid, (VOID **)&nif->nif_devdata); 186 if (status != EFI_SUCCESS) { 187 printf("net%d: cannot start interface (status=%ld)\n", 188 nif->nif_unit, (long)status); 189 return; 190 } 191 192 net = nif->nif_devdata; 193 if (net->Mode->State == EfiSimpleNetworkStopped) { 194 status = net->Start(net); 195 if (status != EFI_SUCCESS) { 196 printf("net%d: cannot start interface (status=%ld)\n", 197 nif->nif_unit, (long)status); 198 return; 199 } 200 } 201 202 if (net->Mode->State != EfiSimpleNetworkInitialized) { 203 status = net->Initialize(net, 0, 0); 204 if (status != EFI_SUCCESS) { 205 printf("net%d: cannot init. interface (status=%ld)\n", 206 nif->nif_unit, (long)status); 207 return; 208 } 209 } 210 211 if (net->Mode->ReceiveFilterSetting == 0) { 212 UINT32 mask = EFI_SIMPLE_NETWORK_RECEIVE_UNICAST | 213 EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST; 214 215 status = net->ReceiveFilters(net, mask, 0, FALSE, 0, 0); 216 if (status != EFI_SUCCESS) { 217 printf("net%d: cannot set rx. filters (status=%ld)\n", 218 nif->nif_unit, (long)status); 219 return; 220 } 221 } 222 223#ifdef EFINET_DEBUG 224 dump_mode(net->Mode); 225#endif 226 227 bcopy(net->Mode->CurrentAddress.Addr, desc->myea, 6); 228 desc->xid = 1; 229} 230 231static void 232efinet_end(struct netif *nif) 233{ 234 EFI_SIMPLE_NETWORK *net = nif->nif_devdata; 235 236 net->Shutdown(net); 237} 238 239static int efinet_dev_init(void); 240static void efinet_dev_print(int); 241 242struct devsw efinet_dev = { 243 .dv_name = "net", 244 .dv_type = DEVT_NET, 245 .dv_init = efinet_dev_init, 246 .dv_strategy = net_strategy, 247 .dv_open = net_open, 248 .dv_close = net_close, 249 .dv_ioctl = noioctl, 250 .dv_print = efinet_dev_print, 251 .dv_cleanup = NULL 252}; 253 254static int 255efinet_dev_init() 256{ 257 struct netif_dif *dif; 258 struct netif_stats *stats; 259 EFI_HANDLE *handles; 260 EFI_STATUS status; 261 UINTN sz; 262 int err, i, nifs; 263 264 sz = 0; 265 handles = NULL; 266 status = BS->LocateHandle(ByProtocol, &sn_guid, 0, &sz, 0); 267 if (status == EFI_BUFFER_TOO_SMALL) { 268 handles = (EFI_HANDLE *)malloc(sz); 269 status = BS->LocateHandle(ByProtocol, &sn_guid, 0, &sz, 270 handles); 271 if (EFI_ERROR(status)) 272 free(handles); 273 } 274 if (EFI_ERROR(status)) 275 return (efi_status_to_errno(status)); 276 nifs = sz / sizeof(EFI_HANDLE); 277 err = efi_register_handles(&efinet_dev, handles, nifs); 278 free(handles); 279 if (err != 0) 280 return (err); 281 282 efinetif.netif_nifs = nifs; 283 efinetif.netif_ifs = calloc(nifs, sizeof(struct netif_dif)); 284 285 stats = calloc(nifs, sizeof(struct netif_stats)); 286 287 for (i = 0; i < nifs; i++) { 288 dif = &efinetif.netif_ifs[i]; 289 dif->dif_unit = i; 290 dif->dif_nsel = 1; 291 dif->dif_stats = &stats[i]; 292 dif->dif_private = efi_find_handle(&efinet_dev, i); 293 } 294 295 return (0); 296} 297 298static void 299efinet_dev_print(int verbose) 300{ 301 char line[80]; 302 EFI_HANDLE h; 303 int unit; 304 305 for (unit = 0, h = efi_find_handle(&efinet_dev, 0); 306 h != NULL; h = efi_find_handle(&efinet_dev, ++unit)) { 307 sprintf(line, " %s%d:\n", efinet_dev.dv_name, unit); 308 pager_output(line); 309 } 310} 311