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a15a4195 | 1 | /** @file\r |
4cda7726 | 2 | Implementation of driver entry point and driver binding protocol.\r |
3 | \r | |
4 | Copyright (c) 2004 - 2008, Intel Corporation. <BR> \r | |
5 | All rights reserved. This program and the accompanying materials are licensed \r | |
6 | and made available under the terms and conditions of the BSD License which \r | |
7 | accompanies this distribution. The full text of the license may be found at \r | |
8 | http://opensource.org/licenses/bsd-license.php \r | |
a15a4195 | 9 | \r |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
a15a4195 | 13 | **/\r |
14 | \r | |
15 | #include "Snp.h"\r | |
16 | \r | |
a15a4195 | 17 | //\r |
18 | // Module global variables needed to support undi 3.0 interface\r | |
19 | //\r | |
4cda7726 | 20 | EFI_PCI_IO_PROTOCOL *mPciIo;\r |
21 | V2P *mV2p = NULL; // undi3.0 map_list head\r | |
a15a4195 | 22 | // End Global variables\r |
23 | //\r | |
24 | \r | |
a15a4195 | 25 | \r |
26 | /**\r | |
f3816027 | 27 | Send command to UNDI. It does nothing currently.\r |
4cda7726 | 28 | \r |
29 | @param Cdb command to be sent to UNDI.\r | |
f3816027 | 30 | \r |
31 | @retval EFI_INVALID_PARAMETER The command is 0. \r | |
32 | @retval EFI_UNSUPPORTED Default return status because it's not \r | |
33 | supported currently.\r | |
34 | \r | |
a15a4195 | 35 | **/\r |
36 | EFI_STATUS\r | |
4cda7726 | 37 | IssueHwUndiCommand (\r |
38 | UINT64 Cdb\r | |
a15a4195 | 39 | )\r |
40 | {\r | |
4cda7726 | 41 | DEBUG ((EFI_D_ERROR, "\nIssueHwUndiCommand() - This should not be called!"));\r |
a15a4195 | 42 | \r |
4cda7726 | 43 | if (Cdb == 0) {\r |
a15a4195 | 44 | return EFI_INVALID_PARAMETER;\r |
45 | \r | |
46 | }\r | |
47 | //\r | |
48 | // %%TBD - For now, nothing is done.\r | |
49 | //\r | |
50 | return EFI_UNSUPPORTED;\r | |
51 | }\r | |
52 | \r | |
53 | \r | |
54 | /**\r | |
55 | Compute 8-bit checksum of a buffer.\r | |
56 | \r | |
4cda7726 | 57 | @param Buffer Pointer to buffer.\r |
58 | @param Length Length of buffer in bytes.\r | |
a15a4195 | 59 | \r |
f3816027 | 60 | @return 8-bit checksum of all bytes in buffer, or zero if ptr is NULL or len \r |
61 | is zero.\r | |
a15a4195 | 62 | \r |
63 | **/\r | |
a15a4195 | 64 | UINT8\r |
4cda7726 | 65 | Calc8BitCksum (\r |
66 | VOID *Buffer,\r | |
67 | UINTN Length\r | |
a15a4195 | 68 | )\r |
69 | {\r | |
4cda7726 | 70 | UINT8 *Ptr;\r |
71 | UINT8 Cksum;\r | |
a15a4195 | 72 | \r |
4cda7726 | 73 | Ptr = Buffer;\r |
74 | Cksum = 0;\r | |
a15a4195 | 75 | \r |
4cda7726 | 76 | if (Ptr == NULL || Length == 0) {\r |
a15a4195 | 77 | return 0;\r |
78 | }\r | |
79 | \r | |
4cda7726 | 80 | while (Length-- != 0) {\r |
81 | Cksum = (UINT8) (Cksum + *Ptr++);\r | |
a15a4195 | 82 | }\r |
83 | \r | |
4cda7726 | 84 | return Cksum;\r |
a15a4195 | 85 | }\r |
86 | \r | |
a15a4195 | 87 | /**\r |
4cda7726 | 88 | Test to see if this driver supports ControllerHandle. This service\r |
89 | is called by the EFI boot service ConnectController(). In\r | |
90 | order to make drivers as small as possible, there are a few calling\r | |
91 | restrictions for this service. ConnectController() must\r | |
92 | follow these calling restrictions. If any other agent wishes to call\r | |
93 | Supported() it must also follow these calling restrictions.\r | |
94 | \r | |
95 | @param This Protocol instance pointer.\r | |
f3816027 | 96 | @param ControllerHandle Handle of device to test.\r |
4cda7726 | 97 | @param RemainingDevicePath Optional parameter use to pick a specific child\r |
98 | device to start.\r | |
99 | \r | |
f3816027 | 100 | @retval EFI_SUCCESS This driver supports this device.\r |
101 | @retval EFI_ALREADY_STARTED This driver is already running on this device.\r | |
102 | @retval other This driver does not support this device.\r | |
a15a4195 | 103 | \r |
104 | **/\r | |
105 | EFI_STATUS\r | |
106 | EFIAPI\r | |
107 | SimpleNetworkDriverSupported (\r | |
108 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
109 | IN EFI_HANDLE Controller,\r | |
110 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
111 | )\r | |
112 | {\r | |
113 | EFI_STATUS Status;\r | |
114 | EFI_NETWORK_INTERFACE_IDENTIFIER_PROTOCOL *NiiProtocol;\r | |
4cda7726 | 115 | PXE_UNDI *Pxe;\r |
a15a4195 | 116 | \r |
117 | Status = gBS->OpenProtocol (\r | |
118 | Controller,\r | |
119 | &gEfiDevicePathProtocolGuid,\r | |
120 | NULL,\r | |
121 | This->DriverBindingHandle,\r | |
122 | Controller,\r | |
123 | EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r | |
124 | );\r | |
125 | if (EFI_ERROR (Status)) {\r | |
126 | return Status;\r | |
127 | }\r | |
128 | \r | |
129 | Status = gBS->OpenProtocol (\r | |
130 | Controller,\r | |
131 | &gEfiNetworkInterfaceIdentifierProtocolGuid_31,\r | |
132 | (VOID **) &NiiProtocol,\r | |
133 | This->DriverBindingHandle,\r | |
134 | Controller,\r | |
135 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
136 | );\r | |
137 | \r | |
138 | if (EFI_ERROR (Status)) {\r | |
139 | if (Status == EFI_ALREADY_STARTED) {\r | |
0e549d5b | 140 | DEBUG ((EFI_D_INFO, "Support(): Already Started. on handle %p\n", Controller));\r |
a15a4195 | 141 | }\r |
142 | return Status;\r | |
143 | }\r | |
144 | \r | |
0e549d5b | 145 | DEBUG ((EFI_D_INFO, "Support(): UNDI3.1 found on handle %p\n", Controller));\r |
a15a4195 | 146 | \r |
147 | //\r | |
148 | // check the version, we don't want to connect to the undi16\r | |
149 | //\r | |
150 | if (NiiProtocol->Type != EfiNetworkInterfaceUndi) {\r | |
151 | Status = EFI_UNSUPPORTED;\r | |
152 | goto Done;\r | |
153 | }\r | |
154 | //\r | |
155 | // Check to see if !PXE structure is valid. Paragraph alignment of !PXE structure is required.\r | |
156 | //\r | |
157 | if (NiiProtocol->ID & 0x0F) {\r | |
9cff2f8d | 158 | DEBUG ((EFI_D_NET, "\n!PXE structure is not paragraph aligned.\n"));\r |
a15a4195 | 159 | Status = EFI_UNSUPPORTED;\r |
160 | goto Done;\r | |
161 | }\r | |
162 | \r | |
4cda7726 | 163 | Pxe = (PXE_UNDI *) (UINTN) (NiiProtocol->ID);\r |
a15a4195 | 164 | \r |
165 | //\r | |
166 | // Verify !PXE revisions.\r | |
167 | //\r | |
4cda7726 | 168 | if (Pxe->hw.Signature != PXE_ROMID_SIGNATURE) {\r |
9cff2f8d | 169 | DEBUG ((EFI_D_NET, "\n!PXE signature is not valid.\n"));\r |
a15a4195 | 170 | Status = EFI_UNSUPPORTED;\r |
171 | goto Done;\r | |
172 | }\r | |
173 | \r | |
4cda7726 | 174 | if (Pxe->hw.Rev < PXE_ROMID_REV) {\r |
9cff2f8d | 175 | DEBUG ((EFI_D_NET, "\n!PXE.Rev is not supported.\n"));\r |
a15a4195 | 176 | Status = EFI_UNSUPPORTED;\r |
177 | goto Done;\r | |
178 | }\r | |
179 | \r | |
4cda7726 | 180 | if (Pxe->hw.MajorVer < PXE_ROMID_MAJORVER) {\r |
a15a4195 | 181 | \r |
9cff2f8d | 182 | DEBUG ((EFI_D_NET, "\n!PXE.MajorVer is not supported.\n"));\r |
a15a4195 | 183 | Status = EFI_UNSUPPORTED;\r |
184 | goto Done;\r | |
185 | \r | |
4cda7726 | 186 | } else if (Pxe->hw.MajorVer == PXE_ROMID_MAJORVER && Pxe->hw.MinorVer < PXE_ROMID_MINORVER) {\r |
9cff2f8d | 187 | DEBUG ((EFI_D_NET, "\n!PXE.MinorVer is not supported."));\r |
a15a4195 | 188 | Status = EFI_UNSUPPORTED;\r |
189 | goto Done;\r | |
190 | }\r | |
191 | //\r | |
192 | // Do S/W UNDI specific checks.\r | |
193 | //\r | |
4cda7726 | 194 | if ((Pxe->hw.Implementation & PXE_ROMID_IMP_HW_UNDI) == 0) {\r |
195 | if (Pxe->sw.EntryPoint < Pxe->sw.Len) {\r | |
9cff2f8d | 196 | DEBUG ((EFI_D_NET, "\n!PXE S/W entry point is not valid."));\r |
a15a4195 | 197 | Status = EFI_UNSUPPORTED;\r |
198 | goto Done;\r | |
199 | }\r | |
200 | \r | |
4cda7726 | 201 | if (Pxe->sw.BusCnt == 0) {\r |
9cff2f8d | 202 | DEBUG ((EFI_D_NET, "\n!PXE.BusCnt is zero."));\r |
a15a4195 | 203 | Status = EFI_UNSUPPORTED;\r |
204 | goto Done;\r | |
205 | }\r | |
206 | }\r | |
207 | \r | |
208 | Status = EFI_SUCCESS;\r | |
0e549d5b | 209 | DEBUG ((EFI_D_INFO, "Support(): supported on %p\n", Controller));\r |
a15a4195 | 210 | \r |
211 | Done:\r | |
212 | gBS->CloseProtocol (\r | |
213 | Controller,\r | |
214 | &gEfiNetworkInterfaceIdentifierProtocolGuid_31,\r | |
215 | This->DriverBindingHandle,\r | |
216 | Controller\r | |
217 | );\r | |
218 | \r | |
219 | return Status;\r | |
220 | }\r | |
221 | \r | |
a15a4195 | 222 | /**\r |
4cda7726 | 223 | Start this driver on ControllerHandle. This service is called by the\r |
224 | EFI boot service ConnectController(). In order to make\r | |
225 | drivers as small as possible, there are a few calling restrictions for\r | |
226 | this service. ConnectController() must follow these\r | |
227 | calling restrictions. If any other agent wishes to call Start() it\r | |
228 | must also follow these calling restrictions.\r | |
a15a4195 | 229 | \r |
230 | @param This Protocol instance pointer.\r | |
4cda7726 | 231 | @param ControllerHandle Handle of device to bind driver to.\r |
232 | @param RemainingDevicePath Optional parameter use to pick a specific child\r | |
233 | device to start.\r | |
a15a4195 | 234 | \r |
4cda7726 | 235 | @retval EFI_SUCCESS This driver is added to ControllerHandle\r |
236 | @retval EFI_ALREADY_STARTED This driver is already running on ControllerHandle\r | |
237 | @retval other This driver does not support this device\r | |
a15a4195 | 238 | \r |
239 | **/\r | |
240 | EFI_STATUS\r | |
241 | EFIAPI\r | |
242 | SimpleNetworkDriverStart (\r | |
243 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
244 | IN EFI_HANDLE Controller,\r | |
245 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
246 | )\r | |
247 | {\r | |
248 | EFI_NETWORK_INTERFACE_IDENTIFIER_PROTOCOL *Nii;\r | |
249 | EFI_DEVICE_PATH_PROTOCOL *NiiDevicePath;\r | |
250 | EFI_STATUS Status;\r | |
4cda7726 | 251 | PXE_UNDI *Pxe;\r |
252 | SNP_DRIVER *Snp;\r | |
253 | VOID *Address;\r | |
a15a4195 | 254 | EFI_HANDLE Handle;\r |
255 | PXE_PCI_CONFIG_INFO ConfigInfo;\r | |
256 | PCI_TYPE00 *ConfigHeader;\r | |
257 | UINT32 *TempBar;\r | |
258 | UINT8 BarIndex;\r | |
259 | PXE_STATFLAGS InitStatFlags;\r | |
260 | \r | |
9cff2f8d | 261 | DEBUG ((EFI_D_NET, "\nSnpNotifyNetworkInterfaceIdentifier() "));\r |
a15a4195 | 262 | \r |
263 | Status = gBS->OpenProtocol (\r | |
264 | Controller,\r | |
265 | &gEfiDevicePathProtocolGuid,\r | |
266 | (VOID **) &NiiDevicePath,\r | |
267 | This->DriverBindingHandle,\r | |
268 | Controller,\r | |
269 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
270 | );\r | |
271 | \r | |
272 | if (EFI_ERROR (Status)) {\r | |
273 | return Status;\r | |
274 | }\r | |
275 | \r | |
276 | Status = gBS->LocateDevicePath (\r | |
277 | &gEfiPciIoProtocolGuid,\r | |
278 | &NiiDevicePath,\r | |
279 | &Handle\r | |
280 | );\r | |
281 | \r | |
282 | if (EFI_ERROR (Status)) {\r | |
283 | return Status;\r | |
284 | }\r | |
285 | \r | |
286 | Status = gBS->OpenProtocol (\r | |
287 | Handle,\r | |
288 | &gEfiPciIoProtocolGuid,\r | |
4cda7726 | 289 | (VOID **) &mPciIo,\r |
a15a4195 | 290 | This->DriverBindingHandle,\r |
291 | Controller,\r | |
292 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
293 | );\r | |
294 | if (EFI_ERROR (Status)) {\r | |
295 | return Status;\r | |
296 | }\r | |
297 | //\r | |
298 | // Get the NII interface.\r | |
299 | //\r | |
300 | Status = gBS->OpenProtocol (\r | |
301 | Controller,\r | |
302 | &gEfiNetworkInterfaceIdentifierProtocolGuid_31,\r | |
303 | (VOID **) &Nii,\r | |
304 | This->DriverBindingHandle,\r | |
305 | Controller,\r | |
306 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
307 | );\r | |
308 | if (EFI_ERROR (Status)) {\r | |
309 | gBS->CloseProtocol (\r | |
310 | Controller,\r | |
311 | &gEfiDevicePathProtocolGuid,\r | |
312 | This->DriverBindingHandle,\r | |
313 | Controller\r | |
314 | );\r | |
315 | return Status;\r | |
316 | }\r | |
317 | \r | |
318 | DEBUG ((EFI_D_INFO, "Start(): UNDI3.1 found\n"));\r | |
319 | \r | |
4cda7726 | 320 | Pxe = (PXE_UNDI *) (UINTN) (Nii->ID);\r |
a15a4195 | 321 | \r |
4cda7726 | 322 | if (Calc8BitCksum (Pxe, Pxe->hw.Len) != 0) {\r |
9cff2f8d | 323 | DEBUG ((EFI_D_NET, "\n!PXE checksum is not correct.\n"));\r |
a15a4195 | 324 | goto NiiError;\r |
325 | }\r | |
326 | \r | |
4cda7726 | 327 | if ((Pxe->hw.Implementation & PXE_ROMID_IMP_PROMISCUOUS_RX_SUPPORTED) != 0) {\r |
a15a4195 | 328 | //\r |
329 | // We can get any packets.\r | |
330 | //\r | |
4cda7726 | 331 | } else if ((Pxe->hw.Implementation & PXE_ROMID_IMP_BROADCAST_RX_SUPPORTED) != 0) {\r |
a15a4195 | 332 | //\r |
333 | // We need to be able to get broadcast packets for DHCP.\r | |
334 | // If we do not have promiscuous support, we must at least have\r | |
335 | // broadcast support or we cannot do DHCP!\r | |
336 | //\r | |
337 | } else {\r | |
9cff2f8d | 338 | DEBUG ((EFI_D_NET, "\nUNDI does not have promiscuous or broadcast support."));\r |
a15a4195 | 339 | goto NiiError;\r |
340 | }\r | |
341 | //\r | |
342 | // OK, we like this UNDI, and we know snp is not already there on this handle\r | |
343 | // Allocate and initialize a new simple network protocol structure.\r | |
344 | //\r | |
4cda7726 | 345 | Status = mPciIo->AllocateBuffer (\r |
346 | mPciIo,\r | |
a15a4195 | 347 | AllocateAnyPages,\r |
348 | EfiBootServicesData,\r | |
349 | SNP_MEM_PAGES (sizeof (SNP_DRIVER)),\r | |
4cda7726 | 350 | &Address,\r |
a15a4195 | 351 | 0\r |
352 | );\r | |
353 | \r | |
354 | if (Status != EFI_SUCCESS) {\r | |
9cff2f8d | 355 | DEBUG ((EFI_D_NET, "\nCould not allocate SNP_DRIVER structure.\n"));\r |
a15a4195 | 356 | goto NiiError;\r |
357 | }\r | |
358 | \r | |
4cda7726 | 359 | Snp = (SNP_DRIVER *) (UINTN) Address;\r |
a15a4195 | 360 | \r |
4cda7726 | 361 | ZeroMem (Snp, sizeof (SNP_DRIVER));\r |
a15a4195 | 362 | \r |
4cda7726 | 363 | Snp->PciIo = mPciIo;\r |
364 | Snp->Signature = SNP_DRIVER_SIGNATURE;\r | |
a15a4195 | 365 | \r |
4cda7726 | 366 | EfiInitializeLock (&Snp->Lock, TPL_NOTIFY);\r |
a15a4195 | 367 | \r |
4cda7726 | 368 | Snp->Snp.Revision = EFI_SIMPLE_NETWORK_PROTOCOL_REVISION;\r |
369 | Snp->Snp.Start = SnpUndi32Start;\r | |
370 | Snp->Snp.Stop = SnpUndi32Stop;\r | |
371 | Snp->Snp.Initialize = SnpUndi32Initialize;\r | |
372 | Snp->Snp.Reset = SnpUndi32Reset;\r | |
373 | Snp->Snp.Shutdown = SnpUndi32Shutdown;\r | |
374 | Snp->Snp.ReceiveFilters = SnpUndi32ReceiveFilters;\r | |
375 | Snp->Snp.StationAddress = SnpUndi32StationAddress;\r | |
376 | Snp->Snp.Statistics = SnpUndi32Statistics;\r | |
377 | Snp->Snp.MCastIpToMac = SnpUndi32McastIpToMac;\r | |
378 | Snp->Snp.NvData = SnpUndi32NvData;\r | |
379 | Snp->Snp.GetStatus = SnpUndi32GetStatus;\r | |
380 | Snp->Snp.Transmit = SnpUndi32Transmit;\r | |
381 | Snp->Snp.Receive = SnpUndi32Receive;\r | |
382 | Snp->Snp.WaitForPacket = NULL;\r | |
a15a4195 | 383 | \r |
4cda7726 | 384 | Snp->Snp.Mode = &Snp->Mode;\r |
a15a4195 | 385 | \r |
4cda7726 | 386 | Snp->TxRxBufferSize = 0;\r |
387 | Snp->TxRxBuffer = NULL;\r | |
a15a4195 | 388 | \r |
4cda7726 | 389 | Snp->IfNum = Nii->IfNum;\r |
a15a4195 | 390 | \r |
4cda7726 | 391 | if ((Pxe->hw.Implementation & PXE_ROMID_IMP_HW_UNDI) != 0) {\r |
392 | Snp->IsSwUndi = FALSE;\r | |
393 | Snp->IssueUndi32Command = &IssueHwUndiCommand;\r | |
a15a4195 | 394 | } else {\r |
4cda7726 | 395 | Snp->IsSwUndi = TRUE;\r |
a15a4195 | 396 | \r |
4cda7726 | 397 | if ((Pxe->sw.Implementation & PXE_ROMID_IMP_SW_VIRT_ADDR) != 0) {\r |
398 | Snp->IssueUndi32Command = (ISSUE_UNDI32_COMMAND) (UINTN) Pxe->sw.EntryPoint;\r | |
a15a4195 | 399 | } else {\r |
4cda7726 | 400 | Snp->IssueUndi32Command = (ISSUE_UNDI32_COMMAND) (UINTN) ((UINT8) (UINTN) Pxe + Pxe->sw.EntryPoint);\r |
a15a4195 | 401 | }\r |
402 | }\r | |
403 | //\r | |
404 | // Allocate a global CPB and DB buffer for this UNDI interface.\r | |
405 | // we do this because:\r | |
406 | //\r | |
407 | // -UNDI 3.0 wants all the addresses passed to it (even the cpb and db) to be\r | |
408 | // within 2GB limit, create them here and map them so that when undi calls\r | |
409 | // v2p callback to check if the physical address is < 2gb, we will pass.\r | |
410 | //\r | |
411 | // -This is not a requirement for 3.1 or later UNDIs but the code looks\r | |
412 | // simpler if we use the same cpb, db variables for both old and new undi\r | |
413 | // interfaces from all the SNP interface calls (we don't map the buffers\r | |
414 | // for the newer undi interfaces though)\r | |
415 | // .\r | |
416 | // -it is OK to allocate one global set of CPB, DB pair for each UNDI\r | |
417 | // interface as EFI does not multi-task and so SNP will not be re-entered!\r | |
418 | //\r | |
4cda7726 | 419 | Status = mPciIo->AllocateBuffer (\r |
420 | mPciIo,\r | |
a15a4195 | 421 | AllocateAnyPages,\r |
422 | EfiBootServicesData,\r | |
423 | SNP_MEM_PAGES (4096),\r | |
4cda7726 | 424 | &Address,\r |
a15a4195 | 425 | 0\r |
426 | );\r | |
427 | \r | |
428 | if (Status != EFI_SUCCESS) {\r | |
9cff2f8d | 429 | DEBUG ((EFI_D_NET, "\nCould not allocate CPB and DB structures.\n"));\r |
a15a4195 | 430 | goto Error_DeleteSNP;\r |
431 | }\r | |
432 | \r | |
4cda7726 | 433 | Snp->Cpb = (VOID *) (UINTN) Address;\r |
434 | Snp->Db = (VOID *) ((UINTN) Address + 2048);\r | |
a15a4195 | 435 | \r |
436 | //\r | |
4cda7726 | 437 | // PxeStart call is going to give the callback functions to UNDI, these callback\r |
a15a4195 | 438 | // functions use the BarIndex values from the snp structure, so these must be initialized\r |
4cda7726 | 439 | // with default values before doing a PxeStart. The correct values can be obtained after\r |
a15a4195 | 440 | // getting the config information from UNDI\r |
441 | //\r | |
4cda7726 | 442 | Snp->MemoryBarIndex = 0;\r |
443 | Snp->IoBarIndex = 1;\r | |
a15a4195 | 444 | \r |
445 | //\r | |
446 | // we need the undi init information many times in this snp code, just get it\r | |
447 | // once here and store it in the snp driver structure. to get Init Info\r | |
448 | // from UNDI we have to start undi first.\r | |
449 | //\r | |
4cda7726 | 450 | Status = PxeStart (Snp);\r |
a15a4195 | 451 | \r |
452 | if (Status != EFI_SUCCESS) {\r | |
453 | goto Error_DeleteSNP;\r | |
454 | }\r | |
455 | \r | |
4cda7726 | 456 | Snp->Cdb.OpCode = PXE_OPCODE_GET_INIT_INFO;\r |
457 | Snp->Cdb.OpFlags = PXE_OPFLAGS_NOT_USED;\r | |
a15a4195 | 458 | \r |
4cda7726 | 459 | Snp->Cdb.CPBsize = PXE_CPBSIZE_NOT_USED;\r |
460 | Snp->Cdb.CPBaddr = PXE_DBADDR_NOT_USED;\r | |
a15a4195 | 461 | \r |
4cda7726 | 462 | Snp->Cdb.DBsize = sizeof Snp->InitInfo;\r |
463 | Snp->Cdb.DBaddr = (UINT64)(UINTN) &Snp->InitInfo;\r | |
a15a4195 | 464 | \r |
4cda7726 | 465 | Snp->Cdb.StatCode = PXE_STATCODE_INITIALIZE;\r |
466 | Snp->Cdb.StatFlags = PXE_STATFLAGS_INITIALIZE;\r | |
a15a4195 | 467 | \r |
4cda7726 | 468 | Snp->Cdb.IFnum = Snp->IfNum;\r |
469 | Snp->Cdb.Control = PXE_CONTROL_LAST_CDB_IN_LIST;\r | |
a15a4195 | 470 | \r |
9cff2f8d | 471 | DEBUG ((EFI_D_NET, "\nSnp->undi.get_init_info() "));\r |
a15a4195 | 472 | \r |
4cda7726 | 473 | (*Snp->IssueUndi32Command) ((UINT64)(UINTN) &Snp->Cdb);\r |
a15a4195 | 474 | \r |
475 | //\r | |
476 | // Save the INIT Stat Code...\r | |
477 | //\r | |
4cda7726 | 478 | InitStatFlags = Snp->Cdb.StatFlags;\r |
a15a4195 | 479 | \r |
4cda7726 | 480 | if (Snp->Cdb.StatCode != PXE_STATCODE_SUCCESS) {\r |
9cff2f8d | 481 | DEBUG ((EFI_D_NET, "\nSnp->undi.init_info() %xh:%xh\n", Snp->Cdb.StatFlags, Snp->Cdb.StatCode));\r |
4cda7726 | 482 | PxeStop (Snp);\r |
a15a4195 | 483 | goto Error_DeleteSNP;\r |
484 | }\r | |
485 | \r | |
4cda7726 | 486 | Snp->Cdb.OpCode = PXE_OPCODE_GET_CONFIG_INFO;\r |
487 | Snp->Cdb.OpFlags = PXE_OPFLAGS_NOT_USED;\r | |
a15a4195 | 488 | \r |
4cda7726 | 489 | Snp->Cdb.CPBsize = PXE_CPBSIZE_NOT_USED;\r |
490 | Snp->Cdb.CPBaddr = PXE_DBADDR_NOT_USED;\r | |
a15a4195 | 491 | \r |
4cda7726 | 492 | Snp->Cdb.DBsize = sizeof ConfigInfo;\r |
493 | Snp->Cdb.DBaddr = (UINT64)(UINTN) &ConfigInfo;\r | |
a15a4195 | 494 | \r |
4cda7726 | 495 | Snp->Cdb.StatCode = PXE_STATCODE_INITIALIZE;\r |
496 | Snp->Cdb.StatFlags = PXE_STATFLAGS_INITIALIZE;\r | |
a15a4195 | 497 | \r |
4cda7726 | 498 | Snp->Cdb.IFnum = Snp->IfNum;\r |
499 | Snp->Cdb.Control = PXE_CONTROL_LAST_CDB_IN_LIST;\r | |
a15a4195 | 500 | \r |
9cff2f8d | 501 | DEBUG ((EFI_D_NET, "\nSnp->undi.get_config_info() "));\r |
a15a4195 | 502 | \r |
4cda7726 | 503 | (*Snp->IssueUndi32Command) ((UINT64)(UINTN) &Snp->Cdb);\r |
a15a4195 | 504 | \r |
4cda7726 | 505 | if (Snp->Cdb.StatCode != PXE_STATCODE_SUCCESS) {\r |
9cff2f8d | 506 | DEBUG ((EFI_D_NET, "\nSnp->undi.config_info() %xh:%xh\n", Snp->Cdb.StatFlags, Snp->Cdb.StatCode));\r |
4cda7726 | 507 | PxeStop (Snp);\r |
a15a4195 | 508 | goto Error_DeleteSNP;\r |
509 | }\r | |
510 | //\r | |
511 | // Find the correct BAR to do IO.\r | |
512 | //\r | |
513 | //\r | |
514 | // Enumerate through the PCI BARs for the device to determine which one is\r | |
515 | // the IO BAR. Save the index of the BAR into the adapter info structure.\r | |
516 | // for regular 32bit BARs, 0 is memory mapped, 1 is io mapped\r | |
517 | //\r | |
518 | ConfigHeader = (PCI_TYPE00 *) &ConfigInfo.Config.Byte[0];\r | |
519 | TempBar = (UINT32 *) &ConfigHeader->Device.Bar[0];\r | |
520 | for (BarIndex = 0; BarIndex <= 5; BarIndex++) {\r | |
521 | if ((*TempBar & PCI_BAR_MEM_MASK) == PCI_BAR_MEM_64BIT) {\r | |
522 | //\r | |
523 | // This is a 64-bit memory bar, skip this and the\r | |
524 | // next bar as well.\r | |
525 | //\r | |
526 | TempBar++;\r | |
527 | }\r | |
528 | \r | |
529 | if ((*TempBar & PCI_BAR_IO_MASK) == PCI_BAR_IO_MODE) {\r | |
4cda7726 | 530 | Snp->IoBarIndex = BarIndex;\r |
a15a4195 | 531 | break;\r |
532 | }\r | |
533 | \r | |
534 | TempBar++;\r | |
535 | }\r | |
536 | \r | |
537 | //\r | |
538 | // Initialize simple network protocol mode structure\r | |
539 | //\r | |
4cda7726 | 540 | Snp->Mode.State = EfiSimpleNetworkStopped;\r |
541 | Snp->Mode.HwAddressSize = Snp->InitInfo.HWaddrLen;\r | |
542 | Snp->Mode.MediaHeaderSize = Snp->InitInfo.MediaHeaderLen;\r | |
543 | Snp->Mode.MaxPacketSize = Snp->InitInfo.FrameDataLen;\r | |
544 | Snp->Mode.NvRamAccessSize = Snp->InitInfo.NvWidth;\r | |
545 | Snp->Mode.NvRamSize = Snp->InitInfo.NvCount * Snp->Mode.NvRamAccessSize;\r | |
546 | Snp->Mode.IfType = Snp->InitInfo.IFtype;\r | |
547 | Snp->Mode.MaxMCastFilterCount = Snp->InitInfo.MCastFilterCnt;\r | |
548 | Snp->Mode.MCastFilterCount = 0;\r | |
a15a4195 | 549 | \r |
550 | switch (InitStatFlags & PXE_STATFLAGS_CABLE_DETECT_MASK) {\r | |
551 | case PXE_STATFLAGS_CABLE_DETECT_SUPPORTED:\r | |
4cda7726 | 552 | Snp->Mode.MediaPresentSupported = TRUE;\r |
a15a4195 | 553 | break;\r |
554 | \r | |
555 | case PXE_STATFLAGS_CABLE_DETECT_NOT_SUPPORTED:\r | |
556 | default:\r | |
4cda7726 | 557 | Snp->Mode.MediaPresentSupported = FALSE;\r |
a15a4195 | 558 | }\r |
559 | \r | |
4cda7726 | 560 | if ((Pxe->hw.Implementation & PXE_ROMID_IMP_STATION_ADDR_SETTABLE) != 0) {\r |
561 | Snp->Mode.MacAddressChangeable = TRUE;\r | |
a15a4195 | 562 | } else {\r |
4cda7726 | 563 | Snp->Mode.MacAddressChangeable = FALSE;\r |
a15a4195 | 564 | }\r |
565 | \r | |
4cda7726 | 566 | if ((Pxe->hw.Implementation & PXE_ROMID_IMP_MULTI_FRAME_SUPPORTED) != 0) {\r |
567 | Snp->Mode.MultipleTxSupported = TRUE;\r | |
a15a4195 | 568 | } else {\r |
4cda7726 | 569 | Snp->Mode.MultipleTxSupported = FALSE;\r |
a15a4195 | 570 | }\r |
571 | \r | |
4cda7726 | 572 | Snp->Mode.ReceiveFilterMask = EFI_SIMPLE_NETWORK_RECEIVE_UNICAST;\r |
a15a4195 | 573 | \r |
4cda7726 | 574 | if ((Pxe->hw.Implementation & PXE_ROMID_IMP_PROMISCUOUS_MULTICAST_RX_SUPPORTED) != 0) {\r |
575 | Snp->Mode.ReceiveFilterMask |= EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST;\r | |
a15a4195 | 576 | \r |
577 | }\r | |
578 | \r | |
4cda7726 | 579 | if ((Pxe->hw.Implementation & PXE_ROMID_IMP_PROMISCUOUS_RX_SUPPORTED) != 0) {\r |
580 | Snp->Mode.ReceiveFilterMask |= EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS;\r | |
a15a4195 | 581 | \r |
582 | }\r | |
583 | \r | |
4cda7726 | 584 | if ((Pxe->hw.Implementation & PXE_ROMID_IMP_BROADCAST_RX_SUPPORTED) != 0) {\r |
585 | Snp->Mode.ReceiveFilterMask |= EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST;\r | |
a15a4195 | 586 | \r |
587 | }\r | |
588 | \r | |
4cda7726 | 589 | if ((Pxe->hw.Implementation & PXE_ROMID_IMP_FILTERED_MULTICAST_RX_SUPPORTED) != 0) {\r |
590 | Snp->Mode.ReceiveFilterMask |= EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST;\r | |
a15a4195 | 591 | \r |
592 | }\r | |
593 | \r | |
4cda7726 | 594 | if (Pxe->hw.Implementation & PXE_ROMID_IMP_PROMISCUOUS_MULTICAST_RX_SUPPORTED) {\r |
595 | Snp->Mode.ReceiveFilterMask |= EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST;\r | |
a15a4195 | 596 | \r |
597 | }\r | |
598 | \r | |
4cda7726 | 599 | Snp->Mode.ReceiveFilterSetting = 0;\r |
a15a4195 | 600 | \r |
601 | //\r | |
602 | // need to get the station address to save in the mode structure. we need to\r | |
603 | // initialize the UNDI first for this.\r | |
604 | //\r | |
4cda7726 | 605 | Snp->TxRxBufferSize = Snp->InitInfo.MemoryRequired;\r |
606 | Status = PxeInit (Snp, PXE_OPFLAGS_INITIALIZE_DO_NOT_DETECT_CABLE);\r | |
a15a4195 | 607 | \r |
4cda7726 | 608 | if (EFI_ERROR (Status)) {\r |
609 | PxeStop (Snp);\r | |
a15a4195 | 610 | goto Error_DeleteSNP;\r |
611 | }\r | |
612 | \r | |
4cda7726 | 613 | Status = PxeGetStnAddr (Snp);\r |
a15a4195 | 614 | \r |
615 | if (Status != EFI_SUCCESS) {\r | |
f3816027 | 616 | DEBUG ((EFI_D_ERROR, "\nSnp->undi.get_station_addr() failed.\n"));\r |
4cda7726 | 617 | PxeShutdown (Snp);\r |
618 | PxeStop (Snp);\r | |
a15a4195 | 619 | goto Error_DeleteSNP;\r |
620 | }\r | |
621 | \r | |
4cda7726 | 622 | Snp->Mode.MediaPresent = FALSE;\r |
a15a4195 | 623 | \r |
624 | //\r | |
625 | // We should not leave UNDI started and initialized here. this DriverStart()\r | |
626 | // routine must only find and attach the SNP interface to UNDI layer that it\r | |
627 | // finds on the given handle!\r | |
4cda7726 | 628 | // The UNDI layer will be started when upper layers call Snp->start.\r |
a15a4195 | 629 | // How ever, this DriverStart() must fill up the snp mode structure which\r |
630 | // contains the MAC address of the NIC. For this reason we started and\r | |
631 | // initialized UNDI here, now we are done, do a shutdown and stop of the\r | |
632 | // UNDI interface!\r | |
633 | //\r | |
4cda7726 | 634 | PxeShutdown (Snp);\r |
635 | PxeStop (Snp);\r | |
a15a4195 | 636 | \r |
637 | //\r | |
638 | // add SNP to the undi handle\r | |
639 | //\r | |
640 | Status = gBS->InstallProtocolInterface (\r | |
641 | &Controller,\r | |
642 | &gEfiSimpleNetworkProtocolGuid,\r | |
643 | EFI_NATIVE_INTERFACE,\r | |
4cda7726 | 644 | &(Snp->Snp)\r |
a15a4195 | 645 | );\r |
646 | \r | |
647 | if (!EFI_ERROR (Status)) {\r | |
648 | return Status;\r | |
649 | }\r | |
650 | \r | |
4cda7726 | 651 | Status = mPciIo->FreeBuffer (\r |
652 | mPciIo,\r | |
a15a4195 | 653 | SNP_MEM_PAGES (4096),\r |
4cda7726 | 654 | Snp->Cpb\r |
a15a4195 | 655 | );\r |
656 | \r | |
657 | Error_DeleteSNP:\r | |
658 | \r | |
4cda7726 | 659 | mPciIo->FreeBuffer (\r |
660 | mPciIo,\r | |
a15a4195 | 661 | SNP_MEM_PAGES (sizeof (SNP_DRIVER)),\r |
4cda7726 | 662 | Snp\r |
a15a4195 | 663 | );\r |
664 | NiiError:\r | |
665 | gBS->CloseProtocol (\r | |
666 | Controller,\r | |
667 | &gEfiNetworkInterfaceIdentifierProtocolGuid_31,\r | |
668 | This->DriverBindingHandle,\r | |
669 | Controller\r | |
670 | );\r | |
671 | \r | |
672 | gBS->CloseProtocol (\r | |
673 | Controller,\r | |
674 | &gEfiDevicePathProtocolGuid,\r | |
675 | This->DriverBindingHandle,\r | |
676 | Controller\r | |
677 | );\r | |
678 | \r | |
679 | return Status;\r | |
680 | }\r | |
681 | \r | |
a15a4195 | 682 | /**\r |
4cda7726 | 683 | Stop this driver on ControllerHandle. This service is called by the\r |
684 | EFI boot service DisconnectController(). In order to\r | |
685 | make drivers as small as possible, there are a few calling\r | |
686 | restrictions for this service. DisconnectController()\r | |
687 | must follow these calling restrictions. If any other agent wishes\r | |
688 | to call Stop() it must also follow these calling restrictions.\r | |
689 | \r | |
690 | @param This Protocol instance pointer.\r | |
691 | @param ControllerHandle Handle of device to stop driver on\r | |
692 | @param NumberOfChildren Number of Handles in ChildHandleBuffer. If number of\r | |
693 | children is zero stop the entire bus driver.\r | |
694 | @param ChildHandleBuffer List of Child Handles to Stop.\r | |
695 | \r | |
696 | @retval EFI_SUCCESS This driver is removed ControllerHandle\r | |
697 | @retval other This driver was not removed from this device\r | |
a15a4195 | 698 | \r |
699 | **/\r | |
700 | EFI_STATUS\r | |
701 | EFIAPI\r | |
702 | SimpleNetworkDriverStop (\r | |
703 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
704 | IN EFI_HANDLE Controller,\r | |
705 | IN UINTN NumberOfChildren,\r | |
706 | IN EFI_HANDLE *ChildHandleBuffer\r | |
707 | )\r | |
708 | {\r | |
709 | EFI_STATUS Status;\r | |
710 | EFI_SIMPLE_NETWORK_PROTOCOL *SnpProtocol;\r | |
711 | SNP_DRIVER *Snp;\r | |
712 | \r | |
713 | //\r | |
714 | // Get our context back.\r | |
715 | //\r | |
716 | Status = gBS->OpenProtocol (\r | |
717 | Controller,\r | |
718 | &gEfiSimpleNetworkProtocolGuid,\r | |
719 | (VOID **) &SnpProtocol,\r | |
720 | This->DriverBindingHandle,\r | |
721 | Controller,\r | |
722 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
723 | );\r | |
724 | \r | |
725 | if (EFI_ERROR (Status)) {\r | |
726 | return EFI_UNSUPPORTED;\r | |
727 | }\r | |
728 | \r | |
729 | Snp = EFI_SIMPLE_NETWORK_DEV_FROM_THIS (SnpProtocol);\r | |
730 | \r | |
731 | Status = gBS->UninstallProtocolInterface (\r | |
732 | Controller,\r | |
733 | &gEfiSimpleNetworkProtocolGuid,\r | |
4cda7726 | 734 | &Snp->Snp\r |
a15a4195 | 735 | );\r |
736 | \r | |
737 | if (EFI_ERROR (Status)) {\r | |
738 | return Status;\r | |
739 | }\r | |
740 | \r | |
741 | Status = gBS->CloseProtocol (\r | |
742 | Controller,\r | |
743 | &gEfiNetworkInterfaceIdentifierProtocolGuid_31,\r | |
744 | This->DriverBindingHandle,\r | |
745 | Controller\r | |
746 | );\r | |
747 | \r | |
748 | Status = gBS->CloseProtocol (\r | |
749 | Controller,\r | |
750 | &gEfiDevicePathProtocolGuid,\r | |
751 | This->DriverBindingHandle,\r | |
752 | Controller\r | |
753 | );\r | |
754 | \r | |
4cda7726 | 755 | PxeShutdown (Snp);\r |
756 | PxeStop (Snp);\r | |
a15a4195 | 757 | \r |
4cda7726 | 758 | mPciIo->FreeBuffer (\r |
759 | mPciIo,\r | |
a15a4195 | 760 | SNP_MEM_PAGES (4096),\r |
4cda7726 | 761 | Snp->Cpb\r |
a15a4195 | 762 | );\r |
763 | \r | |
4cda7726 | 764 | mPciIo->FreeBuffer (\r |
765 | mPciIo,\r | |
a15a4195 | 766 | SNP_MEM_PAGES (sizeof (SNP_DRIVER)),\r |
767 | Snp\r | |
768 | );\r | |
769 | \r | |
770 | return Status;\r | |
771 | }\r | |
772 | \r | |
4cda7726 | 773 | //\r |
774 | // Simple Network Protocol Driver Global Variables\r | |
775 | //\r | |
776 | EFI_DRIVER_BINDING_PROTOCOL mSimpleNetworkDriverBinding = {\r | |
777 | SimpleNetworkDriverSupported,\r | |
778 | SimpleNetworkDriverStart,\r | |
779 | SimpleNetworkDriverStop,\r | |
780 | 0xa,\r | |
781 | NULL,\r | |
782 | NULL\r | |
783 | };\r | |
784 | \r | |
785 | \r | |
786 | /**\r | |
787 | This routine maps the given CPU address to a Device address. It creates a\r | |
788 | an entry in the map list with the virtual and physical addresses and the\r | |
789 | un map cookie.\r | |
790 | \r | |
791 | @param V2p pointer to return a map list node pointer.\r | |
792 | @param Type the direction in which the data flows from the given\r | |
793 | virtual address device->cpu or cpu->device or both\r | |
794 | ways.\r | |
795 | @param VirtualAddress virtual address (or CPU address) to be mapped.\r | |
796 | @param BufferSize size of the buffer to be mapped.\r | |
797 | \r | |
798 | @retval EFI_SUCEESS routine has completed the mapping.\r | |
799 | @retval EFI_INVALID_PARAMETER invalid parameter.\r | |
800 | @retval EFI_OUT_OF_RESOURCES out of resource.\r | |
801 | @retval other error as indicated.\r | |
802 | \r | |
803 | **/\r | |
804 | EFI_STATUS\r | |
805 | AddV2P (\r | |
806 | IN OUT V2P **V2p,\r | |
807 | EFI_PCI_IO_PROTOCOL_OPERATION Type,\r | |
808 | VOID *VirtualAddress,\r | |
809 | UINTN BufferSize\r | |
810 | )\r | |
811 | {\r | |
812 | EFI_STATUS Status;\r | |
813 | \r | |
814 | if ((V2p == NULL) || (VirtualAddress == NULL) || (BufferSize == 0)) {\r | |
815 | return EFI_INVALID_PARAMETER;\r | |
816 | }\r | |
817 | \r | |
f3816027 | 818 | *V2p = AllocatePool (sizeof (V2P));\r |
4cda7726 | 819 | if (*V2p != NULL) {\r |
820 | return EFI_OUT_OF_RESOURCES;\r | |
821 | }\r | |
822 | \r | |
823 | Status = mPciIo->Map (\r | |
f3816027 | 824 | mPciIo,\r |
825 | Type,\r | |
826 | VirtualAddress,\r | |
827 | &BufferSize,\r | |
828 | &(*V2p)->PhysicalAddress,\r | |
829 | &(*V2p)->Unmap\r | |
830 | );\r | |
4cda7726 | 831 | if (Status != EFI_SUCCESS) {\r |
832 | FreePool (*V2p);\r | |
833 | return Status;\r | |
834 | }\r | |
835 | (*V2p)->VirtualAddress = VirtualAddress;\r | |
f3816027 | 836 | (*V2p)->BufferSize = BufferSize;\r |
837 | (*V2p)->Next = mV2p;\r | |
838 | mV2p = *V2p;\r | |
4cda7726 | 839 | \r |
840 | return EFI_SUCCESS;\r | |
841 | }\r | |
842 | \r | |
843 | \r | |
844 | /**\r | |
845 | This routine searches the linked list of mapped address nodes (for undi3.0\r | |
846 | interface) to find the node that corresponds to the given virtual address and\r | |
847 | returns a pointer to that node.\r | |
848 | \r | |
849 | @param V2p pointer to return a map list node pointer.\r | |
850 | @param VirtualAddr virtual address (or CPU address) to be searched in\r | |
851 | the map list\r | |
852 | \r | |
f3816027 | 853 | @retval EFI_SUCEESS A match was found.\r |
854 | @retval Other A match cannot be found.\r | |
4cda7726 | 855 | \r |
856 | **/\r | |
857 | EFI_STATUS\r | |
858 | FindV2p (\r | |
859 | V2P **V2p,\r | |
860 | VOID *VirtualAddr\r | |
861 | )\r | |
862 | {\r | |
863 | V2P *Ptr;\r | |
864 | \r | |
865 | if (V2p == NULL || VirtualAddr == NULL) {\r | |
866 | return EFI_INVALID_PARAMETER;\r | |
867 | }\r | |
868 | \r | |
869 | for (Ptr = mV2p; Ptr != NULL; Ptr = Ptr->Next) {\r | |
870 | if (Ptr->VirtualAddress == VirtualAddr) {\r | |
871 | *V2p = Ptr;\r | |
872 | return EFI_SUCCESS;\r | |
873 | }\r | |
874 | }\r | |
875 | \r | |
876 | return EFI_NOT_FOUND;\r | |
877 | }\r | |
878 | \r | |
879 | \r | |
880 | /**\r | |
f3816027 | 881 | Unmap the given virtual address and free the memory allocated for the map list\r |
882 | node corresponding to that address.\r | |
4cda7726 | 883 | \r |
f3816027 | 884 | @param VirtualAddress virtual address (or CPU address) to be unmapped.\r |
4cda7726 | 885 | \r |
f3816027 | 886 | @retval EFI_SUCEESS Successfully unmapped.\r |
887 | @retval Other Other errors as indicated.\r | |
4cda7726 | 888 | \r |
889 | **/\r | |
890 | EFI_STATUS\r | |
891 | DelV2p (\r | |
892 | VOID *VirtualAddress\r | |
893 | )\r | |
894 | {\r | |
895 | V2P *Current;\r | |
896 | V2P *Next;\r | |
897 | EFI_STATUS Status;\r | |
898 | \r | |
899 | if (VirtualAddress == NULL) {\r | |
900 | return EFI_INVALID_PARAMETER;\r | |
901 | }\r | |
902 | \r | |
903 | if (mV2p == NULL) {\r | |
904 | return EFI_NOT_FOUND;\r | |
905 | }\r | |
906 | //\r | |
907 | // Is our node at the head of the list??\r | |
908 | //\r | |
909 | if ((Current = mV2p)->VirtualAddress == VirtualAddress) {\r | |
910 | mV2p = mV2p->Next;\r | |
911 | \r | |
912 | Status = mPciIo->Unmap (mPciIo, Current->Unmap);\r | |
913 | \r | |
914 | FreePool (Current);\r | |
915 | \r | |
916 | if (EFI_ERROR (Status)) {\r | |
917 | DEBUG ((EFI_D_ERROR, "Unmap failed with status = %r\n", Status));\r | |
918 | }\r | |
919 | return Status;\r | |
920 | }\r | |
921 | \r | |
922 | for (; Current->Next != NULL; Current = Next) {\r | |
923 | if ((Next = Current->Next)->VirtualAddress == VirtualAddress) {\r | |
924 | Current->Next = Next->Next;\r | |
925 | Status = mPciIo->Unmap (mPciIo, Next->Unmap);\r | |
926 | FreePool (Next);\r | |
927 | \r | |
928 | if (EFI_ERROR (Status)) {\r | |
929 | DEBUG ((EFI_D_ERROR, "Unmap failed with status = %r\n", Status));\r | |
930 | }\r | |
931 | return Status;\r | |
932 | }\r | |
933 | }\r | |
934 | \r | |
935 | return EFI_NOT_FOUND;\r | |
936 | }\r | |
a15a4195 | 937 | \r |
938 | /**\r | |
4cda7726 | 939 | The SNP driver entry point.\r |
a15a4195 | 940 | \r |
4cda7726 | 941 | @param ImageHandle The driver image handle.\r |
942 | @param SystemTable The system table.\r | |
a15a4195 | 943 | \r |
4cda7726 | 944 | @retval EFI_SUCEESS Initialization routine has found UNDI hardware,\r |
945 | loaded it's ROM, and installed a notify event for\r | |
946 | the Network Indentifier Interface Protocol\r | |
947 | successfully.\r | |
948 | @retval Other Return value from HandleProtocol for\r | |
949 | DeviceIoProtocol or LoadedImageProtocol\r | |
a15a4195 | 950 | \r |
951 | **/\r | |
952 | EFI_STATUS\r | |
953 | EFIAPI\r | |
954 | InitializeSnpNiiDriver (\r | |
955 | IN EFI_HANDLE ImageHandle,\r | |
956 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
957 | )\r | |
958 | {\r | |
959 | return EfiLibInstallDriverBindingComponentName2 (\r | |
960 | ImageHandle,\r | |
961 | SystemTable,\r | |
962 | &mSimpleNetworkDriverBinding,\r | |
963 | NULL,\r | |
964 | &gSimpleNetworkComponentName,\r | |
965 | &gSimpleNetworkComponentName2\r | |
966 | );\r | |
967 | }\r |