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1 | /** @file\r | |
2 | Implementation of Managed Network Protocol private services.\r | |
3 | \r | |
4 | Copyright (c) 2005 - 2009, Intel Corporation.<BR>\r | |
5 | All rights reserved. This program and the accompanying materials\r | |
6 | are licensed and made available under the terms and conditions\r | |
7 | of the BSD License which accompanies this distribution. The full\r | |
8 | text of the license may be found at<BR>\r | |
9 | http://opensource.org/licenses/bsd-license.php\r | |
10 | \r | |
11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
13 | \r | |
14 | **/\r | |
15 | \r | |
16 | #include "MnpImpl.h"\r | |
17 | #include "MnpVlan.h"\r | |
18 | \r | |
19 | EFI_SERVICE_BINDING_PROTOCOL mMnpServiceBindingProtocol = {\r | |
20 | MnpServiceBindingCreateChild,\r | |
21 | MnpServiceBindingDestroyChild\r | |
22 | };\r | |
23 | \r | |
24 | EFI_MANAGED_NETWORK_PROTOCOL mMnpProtocolTemplate = {\r | |
25 | MnpGetModeData,\r | |
26 | MnpConfigure,\r | |
27 | MnpMcastIpToMac,\r | |
28 | MnpGroups,\r | |
29 | MnpTransmit,\r | |
30 | MnpReceive,\r | |
31 | MnpCancel,\r | |
32 | MnpPoll\r | |
33 | };\r | |
34 | \r | |
35 | EFI_MANAGED_NETWORK_CONFIG_DATA mMnpDefaultConfigData = {\r | |
36 | 10000000,\r | |
37 | 10000000,\r | |
38 | 0,\r | |
39 | FALSE,\r | |
40 | FALSE,\r | |
41 | FALSE,\r | |
42 | FALSE,\r | |
43 | FALSE,\r | |
44 | FALSE,\r | |
45 | FALSE\r | |
46 | };\r | |
47 | \r | |
48 | \r | |
49 | /**\r | |
50 | Add Count of net buffers to MnpDeviceData->FreeNbufQue. The length of the net\r | |
51 | buffer is specified by MnpDeviceData->BufferLength.\r | |
52 | \r | |
53 | @param[in, out] MnpDeviceData Pointer to the MNP_DEVICE_DATA.\r | |
54 | @param[in] Count Number of NET_BUFFERs to add.\r | |
55 | \r | |
56 | @retval EFI_SUCCESS The specified amount of NET_BUFs are allocated\r | |
57 | and added to MnpDeviceData->FreeNbufQue.\r | |
58 | @retval EFI_OUT_OF_RESOURCES Failed to allocate a NET_BUF structure.\r | |
59 | \r | |
60 | **/\r | |
61 | EFI_STATUS\r | |
62 | MnpAddFreeNbuf (\r | |
63 | IN OUT MNP_DEVICE_DATA *MnpDeviceData,\r | |
64 | IN UINTN Count\r | |
65 | )\r | |
66 | {\r | |
67 | EFI_STATUS Status;\r | |
68 | UINTN Index;\r | |
69 | NET_BUF *Nbuf;\r | |
70 | \r | |
71 | NET_CHECK_SIGNATURE (MnpDeviceData, MNP_DEVICE_DATA_SIGNATURE);\r | |
72 | ASSERT ((Count > 0) && (MnpDeviceData->BufferLength > 0));\r | |
73 | \r | |
74 | Status = EFI_SUCCESS;\r | |
75 | for (Index = 0; Index < Count; Index++) {\r | |
76 | Nbuf = NetbufAlloc (MnpDeviceData->BufferLength + MnpDeviceData->PaddingSize);\r | |
77 | if (Nbuf == NULL) {\r | |
78 | DEBUG ((EFI_D_ERROR, "MnpAddFreeNbuf: NetBufAlloc failed.\n"));\r | |
79 | \r | |
80 | Status = EFI_OUT_OF_RESOURCES;\r | |
81 | break;\r | |
82 | }\r | |
83 | \r | |
84 | if (MnpDeviceData->PaddingSize > 0) {\r | |
85 | //\r | |
86 | // Pad padding bytes before the media header\r | |
87 | //\r | |
88 | NetbufAllocSpace (Nbuf, MnpDeviceData->PaddingSize, NET_BUF_TAIL);\r | |
89 | NetbufTrim (Nbuf, MnpDeviceData->PaddingSize, NET_BUF_HEAD);\r | |
90 | }\r | |
91 | \r | |
92 | NetbufQueAppend (&MnpDeviceData->FreeNbufQue, Nbuf);\r | |
93 | }\r | |
94 | \r | |
95 | MnpDeviceData->NbufCnt += Index;\r | |
96 | return Status;\r | |
97 | }\r | |
98 | \r | |
99 | \r | |
100 | /**\r | |
101 | Allocate a free NET_BUF from MnpDeviceData->FreeNbufQue. If there is none\r | |
102 | in the queue, first try to allocate some and add them into the queue, then\r | |
103 | fetch the NET_BUF from the updated FreeNbufQue.\r | |
104 | \r | |
105 | @param[in, out] MnpDeviceData Pointer to the MNP_DEVICE_DATA.\r | |
106 | \r | |
107 | @return Pointer to the allocated free NET_BUF structure, if NULL the\r | |
108 | operation is failed.\r | |
109 | \r | |
110 | **/\r | |
111 | NET_BUF *\r | |
112 | MnpAllocNbuf (\r | |
113 | IN OUT MNP_DEVICE_DATA *MnpDeviceData\r | |
114 | )\r | |
115 | {\r | |
116 | EFI_STATUS Status;\r | |
117 | NET_BUF_QUEUE *FreeNbufQue;\r | |
118 | NET_BUF *Nbuf;\r | |
119 | EFI_TPL OldTpl;\r | |
120 | \r | |
121 | NET_CHECK_SIGNATURE (MnpDeviceData, MNP_DEVICE_DATA_SIGNATURE);\r | |
122 | \r | |
123 | FreeNbufQue = &MnpDeviceData->FreeNbufQue;\r | |
124 | OldTpl = gBS->RaiseTPL (TPL_NOTIFY);\r | |
125 | \r | |
126 | //\r | |
127 | // Check whether there are available buffers, or else try to add some.\r | |
128 | //\r | |
129 | if (FreeNbufQue->BufNum == 0) {\r | |
130 | if ((MnpDeviceData->NbufCnt + MNP_NET_BUFFER_INCREASEMENT) > MNP_MAX_NET_BUFFER_NUM) {\r | |
131 | DEBUG (\r | |
132 | (EFI_D_ERROR,\r | |
133 | "MnpAllocNbuf: The maximum NET_BUF size is reached for MNP driver instance %p.\n",\r | |
134 | MnpDeviceData)\r | |
135 | );\r | |
136 | \r | |
137 | Nbuf = NULL;\r | |
138 | goto ON_EXIT;\r | |
139 | }\r | |
140 | \r | |
141 | Status = MnpAddFreeNbuf (MnpDeviceData, MNP_NET_BUFFER_INCREASEMENT);\r | |
142 | if (EFI_ERROR (Status)) {\r | |
143 | DEBUG (\r | |
144 | (EFI_D_ERROR,\r | |
145 | "MnpAllocNbuf: Failed to add NET_BUFs into the FreeNbufQue, %r.\n",\r | |
146 | Status)\r | |
147 | );\r | |
148 | \r | |
149 | //\r | |
150 | // Don't return NULL, perhaps MnpAddFreeNbuf does add some NET_BUFs but\r | |
151 | // the amount is less than MNP_NET_BUFFER_INCREASEMENT.\r | |
152 | //\r | |
153 | }\r | |
154 | }\r | |
155 | \r | |
156 | Nbuf = NetbufQueRemove (FreeNbufQue);\r | |
157 | \r | |
158 | //\r | |
159 | // Increase the RefCnt.\r | |
160 | //\r | |
161 | if (Nbuf != NULL) {\r | |
162 | NET_GET_REF (Nbuf);\r | |
163 | }\r | |
164 | \r | |
165 | ON_EXIT:\r | |
166 | gBS->RestoreTPL (OldTpl);\r | |
167 | \r | |
168 | return Nbuf;\r | |
169 | }\r | |
170 | \r | |
171 | \r | |
172 | /**\r | |
173 | Try to reclaim the Nbuf into the buffer pool.\r | |
174 | \r | |
175 | @param[in, out] MnpDeviceData Pointer to the mnp device context data.\r | |
176 | @param[in, out] Nbuf Pointer to the NET_BUF to free.\r | |
177 | \r | |
178 | **/\r | |
179 | VOID\r | |
180 | MnpFreeNbuf (\r | |
181 | IN OUT MNP_DEVICE_DATA *MnpDeviceData,\r | |
182 | IN OUT NET_BUF *Nbuf\r | |
183 | )\r | |
184 | {\r | |
185 | EFI_TPL OldTpl;\r | |
186 | \r | |
187 | NET_CHECK_SIGNATURE (MnpDeviceData, MNP_DEVICE_DATA_SIGNATURE);\r | |
188 | ASSERT (Nbuf->RefCnt > 1);\r | |
189 | \r | |
190 | OldTpl = gBS->RaiseTPL (TPL_NOTIFY);\r | |
191 | \r | |
192 | NET_PUT_REF (Nbuf);\r | |
193 | \r | |
194 | if (Nbuf->RefCnt == 1) {\r | |
195 | //\r | |
196 | // Trim all buffer contained in the Nbuf, then append it to the NbufQue.\r | |
197 | //\r | |
198 | NetbufTrim (Nbuf, Nbuf->TotalSize, NET_BUF_TAIL);\r | |
199 | \r | |
200 | if (NetbufAllocSpace (Nbuf, NET_VLAN_TAG_LEN, NET_BUF_HEAD) != NULL) {\r | |
201 | //\r | |
202 | // There is space reserved for vlan tag in the head, reclaim it\r | |
203 | //\r | |
204 | NetbufTrim (Nbuf, NET_VLAN_TAG_LEN, NET_BUF_TAIL);\r | |
205 | }\r | |
206 | \r | |
207 | NetbufQueAppend (&MnpDeviceData->FreeNbufQue, Nbuf);\r | |
208 | }\r | |
209 | \r | |
210 | gBS->RestoreTPL (OldTpl);\r | |
211 | }\r | |
212 | \r | |
213 | \r | |
214 | /**\r | |
215 | Initialize the mnp device context data.\r | |
216 | \r | |
217 | @param[in, out] MnpDeviceData Pointer to the mnp device context data.\r | |
218 | @param[in] ImageHandle The driver image handle.\r | |
219 | @param[in] ControllerHandle Handle of device to bind driver to.\r | |
220 | \r | |
221 | @retval EFI_SUCCESS The mnp service context is initialized.\r | |
222 | @retval EFI_UNSUPPORTED ControllerHandle does not support Simple Network Protocol.\r | |
223 | @retval Others Other errors as indicated.\r | |
224 | \r | |
225 | **/\r | |
226 | EFI_STATUS\r | |
227 | MnpInitializeDeviceData (\r | |
228 | IN OUT MNP_DEVICE_DATA *MnpDeviceData,\r | |
229 | IN EFI_HANDLE ImageHandle,\r | |
230 | IN EFI_HANDLE ControllerHandle\r | |
231 | )\r | |
232 | {\r | |
233 | EFI_STATUS Status;\r | |
234 | EFI_SIMPLE_NETWORK_PROTOCOL *Snp;\r | |
235 | EFI_SIMPLE_NETWORK_MODE *SnpMode;\r | |
236 | \r | |
237 | MnpDeviceData->Signature = MNP_DEVICE_DATA_SIGNATURE;\r | |
238 | MnpDeviceData->ImageHandle = ImageHandle;\r | |
239 | MnpDeviceData->ControllerHandle = ControllerHandle;\r | |
240 | \r | |
241 | //\r | |
242 | // Copy the MNP Protocol interfaces from the template.\r | |
243 | //\r | |
244 | CopyMem (&MnpDeviceData->VlanConfig, &mVlanConfigProtocolTemplate, sizeof (EFI_VLAN_CONFIG_PROTOCOL));\r | |
245 | \r | |
246 | //\r | |
247 | // Open the Simple Network protocol.\r | |
248 | //\r | |
249 | Status = gBS->OpenProtocol (\r | |
250 | ControllerHandle,\r | |
251 | &gEfiSimpleNetworkProtocolGuid,\r | |
252 | (VOID **) &Snp,\r | |
253 | ImageHandle,\r | |
254 | ControllerHandle,\r | |
255 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
256 | );\r | |
257 | if (EFI_ERROR (Status)) {\r | |
258 | return EFI_UNSUPPORTED;\r | |
259 | }\r | |
260 | \r | |
261 | //\r | |
262 | // Get MTU from Snp.\r | |
263 | //\r | |
264 | SnpMode = Snp->Mode;\r | |
265 | MnpDeviceData->Snp = Snp;\r | |
266 | \r | |
267 | //\r | |
268 | // Initialize the lists.\r | |
269 | //\r | |
270 | InitializeListHead (&MnpDeviceData->ServiceList);\r | |
271 | InitializeListHead (&MnpDeviceData->GroupAddressList);\r | |
272 | \r | |
273 | //\r | |
274 | // Get the buffer length used to allocate NET_BUF to hold data received\r | |
275 | // from SNP. Do this before fill the FreeNetBufQue.\r | |
276 | //\r | |
277 | //\r | |
278 | MnpDeviceData->BufferLength = SnpMode->MediaHeaderSize + NET_VLAN_TAG_LEN + SnpMode->MaxPacketSize + NET_ETHER_FCS_SIZE;\r | |
279 | \r | |
280 | //\r | |
281 | // Make sure the protocol headers immediately following the media header\r | |
282 | // 4-byte aligned, and also preserve additional space for VLAN tag\r | |
283 | //\r | |
284 | MnpDeviceData->PaddingSize = ((4 - SnpMode->MediaHeaderSize) & 0x3) + NET_VLAN_TAG_LEN;\r | |
285 | \r | |
286 | //\r | |
287 | // Initialize MAC string which will be used as VLAN configuration variable name\r | |
288 | //\r | |
289 | Status = NetLibGetMacString (ControllerHandle, ImageHandle, &MnpDeviceData->MacString);\r | |
290 | if (EFI_ERROR (Status)) {\r | |
291 | goto ERROR;\r | |
292 | }\r | |
293 | \r | |
294 | //\r | |
295 | // Initialize the FreeNetBufQue and pre-allocate some NET_BUFs.\r | |
296 | //\r | |
297 | NetbufQueInit (&MnpDeviceData->FreeNbufQue);\r | |
298 | Status = MnpAddFreeNbuf (MnpDeviceData, MNP_INIT_NET_BUFFER_NUM);\r | |
299 | if (EFI_ERROR (Status)) {\r | |
300 | DEBUG ((EFI_D_ERROR, "MnpInitializeDeviceData: MnpAddFreeNbuf failed, %r.\n", Status));\r | |
301 | \r | |
302 | goto ERROR;\r | |
303 | }\r | |
304 | \r | |
305 | //\r | |
306 | // Get one NET_BUF from the FreeNbufQue for rx cache.\r | |
307 | //\r | |
308 | MnpDeviceData->RxNbufCache = MnpAllocNbuf (MnpDeviceData);\r | |
309 | NetbufAllocSpace (\r | |
310 | MnpDeviceData->RxNbufCache,\r | |
311 | MnpDeviceData->BufferLength,\r | |
312 | NET_BUF_TAIL\r | |
313 | );\r | |
314 | \r | |
315 | //\r | |
316 | // Allocate buffer pool for tx.\r | |
317 | //\r | |
318 | MnpDeviceData->TxBuf = AllocatePool (MnpDeviceData->BufferLength);\r | |
319 | if (MnpDeviceData->TxBuf == NULL) {\r | |
320 | DEBUG ((EFI_D_ERROR, "MnpInitializeDeviceData: AllocatePool failed.\n"));\r | |
321 | \r | |
322 | Status = EFI_OUT_OF_RESOURCES;\r | |
323 | goto ERROR;\r | |
324 | }\r | |
325 | \r | |
326 | //\r | |
327 | // Create the system poll timer.\r | |
328 | //\r | |
329 | Status = gBS->CreateEvent (\r | |
330 | EVT_NOTIFY_SIGNAL | EVT_TIMER,\r | |
331 | TPL_CALLBACK,\r | |
332 | MnpSystemPoll,\r | |
333 | MnpDeviceData,\r | |
334 | &MnpDeviceData->PollTimer\r | |
335 | );\r | |
336 | if (EFI_ERROR (Status)) {\r | |
337 | DEBUG ((EFI_D_ERROR, "MnpInitializeDeviceData: CreateEvent for poll timer failed.\n"));\r | |
338 | \r | |
339 | goto ERROR;\r | |
340 | }\r | |
341 | \r | |
342 | //\r | |
343 | // Create the timer for packet timeout check.\r | |
344 | //\r | |
345 | Status = gBS->CreateEvent (\r | |
346 | EVT_NOTIFY_SIGNAL | EVT_TIMER,\r | |
347 | TPL_CALLBACK,\r | |
348 | MnpCheckPacketTimeout,\r | |
349 | MnpDeviceData,\r | |
350 | &MnpDeviceData->TimeoutCheckTimer\r | |
351 | );\r | |
352 | if (EFI_ERROR (Status)) {\r | |
353 | DEBUG ((EFI_D_ERROR, "MnpInitializeDeviceData: CreateEvent for packet timeout check failed.\n"));\r | |
354 | \r | |
355 | goto ERROR;\r | |
356 | }\r | |
357 | \r | |
358 | //\r | |
359 | // Create the timer for tx timeout check.\r | |
360 | //\r | |
361 | Status = gBS->CreateEvent (\r | |
362 | EVT_TIMER,\r | |
363 | TPL_CALLBACK,\r | |
364 | NULL,\r | |
365 | NULL,\r | |
366 | &MnpDeviceData->TxTimeoutEvent\r | |
367 | );\r | |
368 | if (EFI_ERROR (Status)) {\r | |
369 | DEBUG ((EFI_D_ERROR, "MnpInitializeDeviceData: CreateEvent for tx timeout event failed.\n"));\r | |
370 | }\r | |
371 | \r | |
372 | ERROR:\r | |
373 | if (EFI_ERROR (Status)) {\r | |
374 | //\r | |
375 | // Free the dynamic allocated resources if necessary.\r | |
376 | //\r | |
377 | if (MnpDeviceData->MacString != NULL) {\r | |
378 | FreePool (MnpDeviceData->MacString);\r | |
379 | }\r | |
380 | \r | |
381 | if (MnpDeviceData->TimeoutCheckTimer != NULL) {\r | |
382 | gBS->CloseEvent (MnpDeviceData->TimeoutCheckTimer);\r | |
383 | }\r | |
384 | \r | |
385 | if (MnpDeviceData->PollTimer != NULL) {\r | |
386 | gBS->CloseEvent (MnpDeviceData->PollTimer);\r | |
387 | }\r | |
388 | \r | |
389 | if (MnpDeviceData->TxBuf != NULL) {\r | |
390 | FreePool (MnpDeviceData->TxBuf);\r | |
391 | }\r | |
392 | \r | |
393 | if (MnpDeviceData->RxNbufCache != NULL) {\r | |
394 | MnpFreeNbuf (MnpDeviceData, MnpDeviceData->RxNbufCache);\r | |
395 | }\r | |
396 | \r | |
397 | if (MnpDeviceData->FreeNbufQue.BufNum != 0) {\r | |
398 | NetbufQueFlush (&MnpDeviceData->FreeNbufQue);\r | |
399 | }\r | |
400 | \r | |
401 | //\r | |
402 | // Close the Simple Network Protocol.\r | |
403 | //\r | |
404 | gBS->CloseProtocol (\r | |
405 | ControllerHandle,\r | |
406 | &gEfiSimpleNetworkProtocolGuid,\r | |
407 | ImageHandle,\r | |
408 | ControllerHandle\r | |
409 | );\r | |
410 | }\r | |
411 | \r | |
412 | return Status;\r | |
413 | }\r | |
414 | \r | |
415 | \r | |
416 | /**\r | |
417 | Destroy the MNP device context data.\r | |
418 | \r | |
419 | @param[in, out] MnpDeviceData Pointer to the mnp device context data.\r | |
420 | @param[in] ImageHandle The driver image handle.\r | |
421 | \r | |
422 | **/\r | |
423 | VOID\r | |
424 | MnpDestroyDeviceData (\r | |
425 | IN OUT MNP_DEVICE_DATA *MnpDeviceData,\r | |
426 | IN EFI_HANDLE ImageHandle\r | |
427 | )\r | |
428 | {\r | |
429 | NET_CHECK_SIGNATURE (MnpDeviceData, MNP_DEVICE_DATA_SIGNATURE);\r | |
430 | \r | |
431 | //\r | |
432 | // Free Vlan Config variable name string\r | |
433 | //\r | |
434 | if (MnpDeviceData->MacString != NULL) {\r | |
435 | FreePool (MnpDeviceData->MacString);\r | |
436 | }\r | |
437 | \r | |
438 | //\r | |
439 | // The GroupAddressList must be empty.\r | |
440 | //\r | |
441 | ASSERT (IsListEmpty (&MnpDeviceData->GroupAddressList));\r | |
442 | \r | |
443 | //\r | |
444 | // Close the event.\r | |
445 | //\r | |
446 | gBS->CloseEvent (&MnpDeviceData->TxTimeoutEvent);\r | |
447 | gBS->CloseEvent (&MnpDeviceData->TimeoutCheckTimer);\r | |
448 | gBS->CloseEvent (&MnpDeviceData->PollTimer);\r | |
449 | \r | |
450 | //\r | |
451 | // Free the tx buffer.\r | |
452 | //\r | |
453 | FreePool (MnpDeviceData->TxBuf);\r | |
454 | \r | |
455 | //\r | |
456 | // Free the RxNbufCache.\r | |
457 | //\r | |
458 | MnpFreeNbuf (MnpDeviceData, MnpDeviceData->RxNbufCache);\r | |
459 | \r | |
460 | //\r | |
461 | // Flush the FreeNbufQue.\r | |
462 | //\r | |
463 | MnpDeviceData->NbufCnt -= MnpDeviceData->FreeNbufQue.BufNum;\r | |
464 | NetbufQueFlush (&MnpDeviceData->FreeNbufQue);\r | |
465 | \r | |
466 | //\r | |
467 | // Close the Simple Network Protocol.\r | |
468 | //\r | |
469 | gBS->CloseProtocol (\r | |
470 | MnpDeviceData->ControllerHandle,\r | |
471 | &gEfiSimpleNetworkProtocolGuid,\r | |
472 | ImageHandle,\r | |
473 | MnpDeviceData->ControllerHandle\r | |
474 | );\r | |
475 | }\r | |
476 | \r | |
477 | \r | |
478 | /**\r | |
479 | Create mnp service context data.\r | |
480 | \r | |
481 | @param[in] MnpDeviceData Pointer to the mnp device context data.\r | |
482 | @param[in] VlanId The VLAN ID.\r | |
483 | @param[in] Priority The VLAN priority. If VlanId is 0,\r | |
484 | Priority is ignored.\r | |
485 | \r | |
486 | @return A pointer to MNP_SERVICE_DATA or NULL if failed to create MNP service context.\r | |
487 | \r | |
488 | **/\r | |
489 | MNP_SERVICE_DATA *\r | |
490 | MnpCreateServiceData (\r | |
491 | IN MNP_DEVICE_DATA *MnpDeviceData,\r | |
492 | IN UINT16 VlanId,\r | |
493 | IN UINT8 Priority OPTIONAL\r | |
494 | )\r | |
495 | {\r | |
496 | EFI_HANDLE MnpServiceHandle;\r | |
497 | MNP_SERVICE_DATA *MnpServiceData;\r | |
498 | EFI_STATUS Status;\r | |
499 | EFI_SIMPLE_NETWORK_MODE *SnpMode;\r | |
500 | EFI_VLAN_CONFIG_PROTOCOL *VlanConfig;\r | |
501 | \r | |
502 | //\r | |
503 | // Initialize the Mnp Service Data.\r | |
504 | //\r | |
505 | MnpServiceData = AllocateZeroPool (sizeof (MNP_SERVICE_DATA));\r | |
506 | if (MnpServiceData == NULL) {\r | |
507 | DEBUG ((EFI_D_ERROR, "MnpCreateServiceData: Faild to allocate memory for the new Mnp Service Data.\n"));\r | |
508 | \r | |
509 | return NULL;\r | |
510 | }\r | |
511 | \r | |
512 | //\r | |
513 | // Add to MNP service list\r | |
514 | //\r | |
515 | InsertTailList (&MnpDeviceData->ServiceList, &MnpServiceData->Link);\r | |
516 | \r | |
517 | MnpServiceData->Signature = MNP_SERVICE_DATA_SIGNATURE;\r | |
518 | MnpServiceData->MnpDeviceData = MnpDeviceData;\r | |
519 | \r | |
520 | //\r | |
521 | // Copy the ServiceBinding structure.\r | |
522 | //\r | |
523 | CopyMem (&MnpServiceData->ServiceBinding, &mMnpServiceBindingProtocol, sizeof (EFI_SERVICE_BINDING_PROTOCOL));\r | |
524 | \r | |
525 | //\r | |
526 | // Initialize the lists.\r | |
527 | //\r | |
528 | InitializeListHead (&MnpServiceData->ChildrenList);\r | |
529 | \r | |
530 | SnpMode = MnpDeviceData->Snp->Mode;\r | |
531 | if (VlanId != 0) {\r | |
532 | //\r | |
533 | // Create VLAN child handle\r | |
534 | //\r | |
535 | MnpServiceHandle = MnpCreateVlanChild (\r | |
536 | MnpDeviceData->ImageHandle,\r | |
537 | MnpDeviceData->ControllerHandle,\r | |
538 | VlanId,\r | |
539 | &MnpServiceData->DevicePath\r | |
540 | );\r | |
541 | if (MnpServiceHandle == NULL) {\r | |
542 | DEBUG ((EFI_D_ERROR, "MnpCreateServiceData: Faild to create child handle.\n"));\r | |
543 | \r | |
544 | return NULL;\r | |
545 | }\r | |
546 | \r | |
547 | //\r | |
548 | // Open VLAN Config Protocol by child\r | |
549 | //\r | |
550 | Status = gBS->OpenProtocol (\r | |
551 | MnpDeviceData->ControllerHandle,\r | |
552 | &gEfiVlanConfigProtocolGuid,\r | |
553 | (VOID **) &VlanConfig,\r | |
554 | MnpDeviceData->ImageHandle,\r | |
555 | MnpServiceHandle,\r | |
556 | EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER\r | |
557 | );\r | |
558 | if (EFI_ERROR (Status)) {\r | |
559 | goto Exit;\r | |
560 | }\r | |
561 | \r | |
562 | //\r | |
563 | // Reduce MTU for VLAN device\r | |
564 | //\r | |
565 | MnpServiceData->Mtu = SnpMode->MaxPacketSize - NET_VLAN_TAG_LEN;\r | |
566 | } else {\r | |
567 | //\r | |
568 | // VlanId set to 0 means rx/tx untagged frame\r | |
569 | //\r | |
570 | MnpServiceHandle = MnpDeviceData->ControllerHandle;\r | |
571 | MnpServiceData->Mtu = SnpMode->MaxPacketSize;\r | |
572 | }\r | |
573 | \r | |
574 | MnpServiceData->ServiceHandle = MnpServiceHandle;\r | |
575 | MnpServiceData->VlanId = VlanId;\r | |
576 | MnpServiceData->Priority = Priority;\r | |
577 | \r | |
578 | //\r | |
579 | // Install the MNP Service Binding Protocol\r | |
580 | //\r | |
581 | Status = gBS->InstallMultipleProtocolInterfaces (\r | |
582 | &MnpServiceHandle,\r | |
583 | &gEfiManagedNetworkServiceBindingProtocolGuid,\r | |
584 | &MnpServiceData->ServiceBinding,\r | |
585 | NULL\r | |
586 | );\r | |
587 | \r | |
588 | Exit:\r | |
589 | if (EFI_ERROR (Status)) {\r | |
590 | MnpDestroyServiceData (MnpServiceData);\r | |
591 | MnpServiceData = NULL;\r | |
592 | }\r | |
593 | \r | |
594 | return MnpServiceData;\r | |
595 | }\r | |
596 | \r | |
597 | /**\r | |
598 | Destroy the MNP service context data.\r | |
599 | \r | |
600 | @param[in, out] MnpServiceData Pointer to the mnp service context data.\r | |
601 | \r | |
602 | @retval EFI_SUCCESS The mnp service context is destroyed.\r | |
603 | @retval Others Errors as indicated.\r | |
604 | \r | |
605 | **/\r | |
606 | EFI_STATUS\r | |
607 | MnpDestroyServiceData (\r | |
608 | IN OUT MNP_SERVICE_DATA *MnpServiceData\r | |
609 | )\r | |
610 | {\r | |
611 | EFI_STATUS Status;\r | |
612 | \r | |
613 | //\r | |
614 | // Uninstall the MNP Service Binding Protocol\r | |
615 | //\r | |
616 | Status = gBS->UninstallMultipleProtocolInterfaces (\r | |
617 | MnpServiceData->ServiceHandle,\r | |
618 | &gEfiManagedNetworkServiceBindingProtocolGuid,\r | |
619 | &MnpServiceData->ServiceBinding,\r | |
620 | NULL\r | |
621 | );\r | |
622 | if (EFI_ERROR (Status)) {\r | |
623 | return Status;\r | |
624 | }\r | |
625 | \r | |
626 | if (MnpServiceData->VlanId != 0) {\r | |
627 | //\r | |
628 | // Close VlanConfig Protocol opened by VLAN child handle\r | |
629 | //\r | |
630 | Status = gBS->CloseProtocol (\r | |
631 | MnpServiceData->MnpDeviceData->ControllerHandle,\r | |
632 | &gEfiVlanConfigProtocolGuid,\r | |
633 | MnpServiceData->MnpDeviceData->ImageHandle,\r | |
634 | MnpServiceData->ServiceHandle\r | |
635 | );\r | |
636 | if (EFI_ERROR (Status)) {\r | |
637 | return Status;\r | |
638 | }\r | |
639 | \r | |
640 | //\r | |
641 | // Uninstall Device Path Protocol to destroy the VLAN child handle\r | |
642 | //\r | |
643 | Status = gBS->UninstallMultipleProtocolInterfaces (\r | |
644 | MnpServiceData->ServiceHandle,\r | |
645 | &gEfiDevicePathProtocolGuid,\r | |
646 | MnpServiceData->DevicePath,\r | |
647 | NULL\r | |
648 | );\r | |
649 | if (EFI_ERROR (Status)) {\r | |
650 | return Status;\r | |
651 | }\r | |
652 | \r | |
653 | if (MnpServiceData->DevicePath != NULL) {\r | |
654 | FreePool (MnpServiceData->DevicePath);\r | |
655 | }\r | |
656 | }\r | |
657 | \r | |
658 | //\r | |
659 | // Remove from MnpDeviceData service list\r | |
660 | //\r | |
661 | RemoveEntryList (&MnpServiceData->Link);\r | |
662 | \r | |
663 | FreePool (MnpServiceData);\r | |
664 | \r | |
665 | return Status;\r | |
666 | }\r | |
667 | \r | |
668 | /**\r | |
669 | Destroy all child of the MNP service data.\r | |
670 | \r | |
671 | @param[in, out] MnpServiceData Pointer to the mnp service context data.\r | |
672 | \r | |
673 | @retval EFI_SUCCESS All child are destroyed.\r | |
674 | @retval Others Failed to destroy all child.\r | |
675 | \r | |
676 | **/\r | |
677 | EFI_STATUS\r | |
678 | MnpDestroyServiceChild (\r | |
679 | IN OUT MNP_SERVICE_DATA *MnpServiceData\r | |
680 | )\r | |
681 | {\r | |
682 | EFI_STATUS Status;\r | |
683 | MNP_INSTANCE_DATA *Instance;\r | |
684 | EFI_SERVICE_BINDING_PROTOCOL *ServiceBinding;\r | |
685 | \r | |
686 | ServiceBinding = &MnpServiceData->ServiceBinding;\r | |
687 | while (!IsListEmpty (&MnpServiceData->ChildrenList)) {\r | |
688 | //\r | |
689 | // Don't use NetListRemoveHead here, the remove opreration will be done\r | |
690 | // in ServiceBindingDestroyChild.\r | |
691 | //\r | |
692 | Instance = NET_LIST_HEAD (\r | |
693 | &MnpServiceData->ChildrenList,\r | |
694 | MNP_INSTANCE_DATA,\r | |
695 | InstEntry\r | |
696 | );\r | |
697 | \r | |
698 | Status = ServiceBinding->DestroyChild (ServiceBinding, Instance->Handle);\r | |
699 | if (EFI_ERROR (Status)) {\r | |
700 | return Status;\r | |
701 | }\r | |
702 | }\r | |
703 | \r | |
704 | return EFI_SUCCESS;\r | |
705 | }\r | |
706 | \r | |
707 | /**\r | |
708 | Find the MNP Service Data for given VLAN ID.\r | |
709 | \r | |
710 | @param[in] MnpDeviceData Pointer to the mnp device context data.\r | |
711 | @param[in] VlanId The VLAN ID.\r | |
712 | \r | |
713 | @return A pointer to MNP_SERVICE_DATA or NULL if not found.\r | |
714 | \r | |
715 | **/\r | |
716 | MNP_SERVICE_DATA *\r | |
717 | MnpFindServiceData (\r | |
718 | IN MNP_DEVICE_DATA *MnpDeviceData,\r | |
719 | IN UINT16 VlanId\r | |
720 | )\r | |
721 | {\r | |
722 | LIST_ENTRY *Entry;\r | |
723 | MNP_SERVICE_DATA *MnpServiceData;\r | |
724 | \r | |
725 | NET_LIST_FOR_EACH (Entry, &MnpDeviceData->ServiceList) {\r | |
726 | //\r | |
727 | // Check VLAN ID of each Mnp Service Data\r | |
728 | //\r | |
729 | MnpServiceData = MNP_SERVICE_DATA_FROM_LINK (Entry);\r | |
730 | if (MnpServiceData->VlanId == VlanId) {\r | |
731 | return MnpServiceData;\r | |
732 | }\r | |
733 | }\r | |
734 | \r | |
735 | return NULL;\r | |
736 | }\r | |
737 | \r | |
738 | /**\r | |
739 | Initialize the mnp instance context data.\r | |
740 | \r | |
741 | @param[in] MnpServiceData Pointer to the mnp service context data.\r | |
742 | @param[in, out] Instance Pointer to the mnp instance context data\r | |
743 | to initialize.\r | |
744 | \r | |
745 | **/\r | |
746 | VOID\r | |
747 | MnpInitializeInstanceData (\r | |
748 | IN MNP_SERVICE_DATA *MnpServiceData,\r | |
749 | IN OUT MNP_INSTANCE_DATA *Instance\r | |
750 | )\r | |
751 | {\r | |
752 | NET_CHECK_SIGNATURE (MnpServiceData, MNP_SERVICE_DATA_SIGNATURE);\r | |
753 | ASSERT (Instance != NULL);\r | |
754 | \r | |
755 | //\r | |
756 | // Set the signature.\r | |
757 | //\r | |
758 | Instance->Signature = MNP_INSTANCE_DATA_SIGNATURE;\r | |
759 | \r | |
760 | //\r | |
761 | // Copy the MNP Protocol interfaces from the template.\r | |
762 | //\r | |
763 | CopyMem (&Instance->ManagedNetwork, &mMnpProtocolTemplate, sizeof (Instance->ManagedNetwork));\r | |
764 | \r | |
765 | //\r | |
766 | // Copy the default config data.\r | |
767 | //\r | |
768 | CopyMem (&Instance->ConfigData, &mMnpDefaultConfigData, sizeof (Instance->ConfigData));\r | |
769 | \r | |
770 | //\r | |
771 | // Initialize the lists.\r | |
772 | //\r | |
773 | InitializeListHead (&Instance->GroupCtrlBlkList);\r | |
774 | InitializeListHead (&Instance->RcvdPacketQueue);\r | |
775 | InitializeListHead (&Instance->RxDeliveredPacketQueue);\r | |
776 | \r | |
777 | //\r | |
778 | // Initialize the RxToken Map.\r | |
779 | //\r | |
780 | NetMapInit (&Instance->RxTokenMap);\r | |
781 | \r | |
782 | //\r | |
783 | // Save the MnpServiceData info.\r | |
784 | //\r | |
785 | Instance->MnpServiceData = MnpServiceData;\r | |
786 | }\r | |
787 | \r | |
788 | \r | |
789 | /**\r | |
790 | Check whether the token specified by Arg matches the token in Item.\r | |
791 | \r | |
792 | @param[in] Map Pointer to the NET_MAP.\r | |
793 | @param[in] Item Pointer to the NET_MAP_ITEM.\r | |
794 | @param[in] Arg Pointer to the Arg, it's a pointer to the token to\r | |
795 | check.\r | |
796 | \r | |
797 | @retval EFI_SUCCESS The token specified by Arg is different from the\r | |
798 | token in Item.\r | |
799 | @retval EFI_ACCESS_DENIED The token specified by Arg is the same as that in\r | |
800 | Item.\r | |
801 | \r | |
802 | **/\r | |
803 | EFI_STATUS\r | |
804 | MnpTokenExist (\r | |
805 | IN NET_MAP *Map,\r | |
806 | IN NET_MAP_ITEM *Item,\r | |
807 | IN VOID *Arg\r | |
808 | )\r | |
809 | {\r | |
810 | EFI_MANAGED_NETWORK_COMPLETION_TOKEN *Token;\r | |
811 | EFI_MANAGED_NETWORK_COMPLETION_TOKEN *TokenInItem;\r | |
812 | \r | |
813 | Token = (EFI_MANAGED_NETWORK_COMPLETION_TOKEN *) Arg;\r | |
814 | TokenInItem = (EFI_MANAGED_NETWORK_COMPLETION_TOKEN *) Item->Key;\r | |
815 | \r | |
816 | if ((Token == TokenInItem) || (Token->Event == TokenInItem->Event)) {\r | |
817 | //\r | |
818 | // The token is the same either the two tokens equals or the Events in\r | |
819 | // the two tokens are the same.\r | |
820 | //\r | |
821 | return EFI_ACCESS_DENIED;\r | |
822 | }\r | |
823 | \r | |
824 | return EFI_SUCCESS;\r | |
825 | }\r | |
826 | \r | |
827 | /**\r | |
828 | Cancel the token specified by Arg if it matches the token in Item.\r | |
829 | \r | |
830 | @param[in, out] Map Pointer to the NET_MAP.\r | |
831 | @param[in, out] Item Pointer to the NET_MAP_ITEM.\r | |
832 | @param[in] Arg Pointer to the Arg, it's a pointer to the\r | |
833 | token to cancel.\r | |
834 | \r | |
835 | @retval EFI_SUCCESS The Arg is NULL, and the token in Item is cancelled,\r | |
836 | or the Arg isn't NULL, and the token in Item is\r | |
837 | different from the Arg.\r | |
838 | @retval EFI_ABORTED The Arg isn't NULL, the token in Item mathces the\r | |
839 | Arg, and the token is cancelled.\r | |
840 | \r | |
841 | **/\r | |
842 | EFI_STATUS\r | |
843 | MnpCancelTokens (\r | |
844 | IN OUT NET_MAP *Map,\r | |
845 | IN OUT NET_MAP_ITEM *Item,\r | |
846 | IN VOID *Arg\r | |
847 | )\r | |
848 | {\r | |
849 | EFI_MANAGED_NETWORK_COMPLETION_TOKEN *TokenToCancel;\r | |
850 | \r | |
851 | if ((Arg != NULL) && (Item->Key != Arg)) {\r | |
852 | //\r | |
853 | // The token in Item is not the token specified by Arg.\r | |
854 | //\r | |
855 | return EFI_SUCCESS;\r | |
856 | }\r | |
857 | \r | |
858 | TokenToCancel = (EFI_MANAGED_NETWORK_COMPLETION_TOKEN *) Item->Key;\r | |
859 | \r | |
860 | //\r | |
861 | // Remove the item from the map.\r | |
862 | //\r | |
863 | NetMapRemoveItem (Map, Item, NULL);\r | |
864 | \r | |
865 | //\r | |
866 | // Cancel this token with status set to EFI_ABORTED.\r | |
867 | //\r | |
868 | TokenToCancel->Status = EFI_ABORTED;\r | |
869 | gBS->SignalEvent (TokenToCancel->Event);\r | |
870 | \r | |
871 | if (Arg != NULL) {\r | |
872 | //\r | |
873 | // Only abort the token specified by Arg if Arg isn't NULL.\r | |
874 | //\r | |
875 | return EFI_ABORTED;\r | |
876 | }\r | |
877 | \r | |
878 | return EFI_SUCCESS;\r | |
879 | }\r | |
880 | \r | |
881 | \r | |
882 | /**\r | |
883 | Start and initialize the simple network.\r | |
884 | \r | |
885 | @param[in] Snp Pointer to the simple network protocol.\r | |
886 | \r | |
887 | @retval EFI_SUCCESS The simple network protocol is started.\r | |
888 | @retval Others Other errors as indicated.\r | |
889 | \r | |
890 | **/\r | |
891 | EFI_STATUS\r | |
892 | MnpStartSnp (\r | |
893 | IN EFI_SIMPLE_NETWORK_PROTOCOL *Snp\r | |
894 | )\r | |
895 | {\r | |
896 | EFI_STATUS Status;\r | |
897 | \r | |
898 | ASSERT (Snp != NULL);\r | |
899 | \r | |
900 | //\r | |
901 | // Start the simple network.\r | |
902 | //\r | |
903 | Status = Snp->Start (Snp);\r | |
904 | \r | |
905 | if (!EFI_ERROR (Status)) {\r | |
906 | //\r | |
907 | // Initialize the simple network.\r | |
908 | //\r | |
909 | Status = Snp->Initialize (Snp, 0, 0);\r | |
910 | }\r | |
911 | \r | |
912 | return Status;\r | |
913 | }\r | |
914 | \r | |
915 | \r | |
916 | /**\r | |
917 | Stop the simple network.\r | |
918 | \r | |
919 | @param[in] Snp Pointer to the simple network protocol.\r | |
920 | \r | |
921 | @retval EFI_SUCCESS The simple network is stopped.\r | |
922 | @retval Others Other errors as indicated.\r | |
923 | \r | |
924 | **/\r | |
925 | EFI_STATUS\r | |
926 | MnpStopSnp (\r | |
927 | IN EFI_SIMPLE_NETWORK_PROTOCOL *Snp\r | |
928 | )\r | |
929 | {\r | |
930 | EFI_STATUS Status;\r | |
931 | \r | |
932 | ASSERT (Snp != NULL);\r | |
933 | \r | |
934 | //\r | |
935 | // Shut down the simple network.\r | |
936 | //\r | |
937 | Status = Snp->Shutdown (Snp);\r | |
938 | if (!EFI_ERROR (Status)) {\r | |
939 | //\r | |
940 | // Stop the simple network.\r | |
941 | //\r | |
942 | Status = Snp->Stop (Snp);\r | |
943 | }\r | |
944 | \r | |
945 | return Status;\r | |
946 | }\r | |
947 | \r | |
948 | \r | |
949 | /**\r | |
950 | Start the managed network, this function is called when one instance is configured\r | |
951 | or reconfigured.\r | |
952 | \r | |
953 | @param[in, out] MnpServiceData Pointer to the mnp service context data.\r | |
954 | @param[in] IsConfigUpdate The instance is reconfigured or it's the first\r | |
955 | time the instanced is configured.\r | |
956 | @param[in] EnableSystemPoll Enable the system polling or not.\r | |
957 | \r | |
958 | @retval EFI_SUCCESS The managed network is started and some\r | |
959 | configuration is updated.\r | |
960 | @retval Others Other errors as indicated.\r | |
961 | \r | |
962 | **/\r | |
963 | EFI_STATUS\r | |
964 | MnpStart (\r | |
965 | IN OUT MNP_SERVICE_DATA *MnpServiceData,\r | |
966 | IN BOOLEAN IsConfigUpdate,\r | |
967 | IN BOOLEAN EnableSystemPoll\r | |
968 | )\r | |
969 | {\r | |
970 | EFI_STATUS Status;\r | |
971 | EFI_TIMER_DELAY TimerOpType;\r | |
972 | MNP_DEVICE_DATA *MnpDeviceData;\r | |
973 | \r | |
974 | NET_CHECK_SIGNATURE (MnpServiceData, MNP_SERVICE_DATA_SIGNATURE);\r | |
975 | \r | |
976 | Status = EFI_SUCCESS;\r | |
977 | MnpDeviceData = MnpServiceData->MnpDeviceData;\r | |
978 | \r | |
979 | if (!IsConfigUpdate) {\r | |
980 | //\r | |
981 | // If it's not a configuration update, increase the configured children number.\r | |
982 | //\r | |
983 | MnpDeviceData->ConfiguredChildrenNumber++;\r | |
984 | \r | |
985 | if (MnpDeviceData->ConfiguredChildrenNumber == 1) {\r | |
986 | //\r | |
987 | // It's the first configured child, start the simple network.\r | |
988 | //\r | |
989 | Status = MnpStartSnp (MnpDeviceData->Snp);\r | |
990 | if (EFI_ERROR (Status)) {\r | |
991 | DEBUG ((EFI_D_ERROR, "MnpStart: MnpStartSnp failed, %r.\n", Status));\r | |
992 | \r | |
993 | goto ErrorExit;\r | |
994 | }\r | |
995 | \r | |
996 | //\r | |
997 | // Start the timeout timer.\r | |
998 | //\r | |
999 | Status = gBS->SetTimer (\r | |
1000 | MnpDeviceData->TimeoutCheckTimer,\r | |
1001 | TimerPeriodic,\r | |
1002 | MNP_TIMEOUT_CHECK_INTERVAL\r | |
1003 | );\r | |
1004 | if (EFI_ERROR (Status)) {\r | |
1005 | DEBUG (\r | |
1006 | (EFI_D_ERROR,\r | |
1007 | "MnpStart, gBS->SetTimer for TimeoutCheckTimer %r.\n",\r | |
1008 | Status)\r | |
1009 | );\r | |
1010 | \r | |
1011 | goto ErrorExit;\r | |
1012 | }\r | |
1013 | }\r | |
1014 | }\r | |
1015 | \r | |
1016 | if (MnpDeviceData->EnableSystemPoll ^ EnableSystemPoll) {\r | |
1017 | //\r | |
1018 | // The EnableSystemPoll differs with the current state, disable or enable\r | |
1019 | // the system poll.\r | |
1020 | //\r | |
1021 | TimerOpType = EnableSystemPoll ? TimerPeriodic : TimerCancel;\r | |
1022 | \r | |
1023 | Status = gBS->SetTimer (MnpDeviceData->PollTimer, TimerOpType, MNP_SYS_POLL_INTERVAL);\r | |
1024 | if (EFI_ERROR (Status)) {\r | |
1025 | DEBUG ((EFI_D_ERROR, "MnpStart: gBS->SetTimer for PollTimer failed, %r.\n", Status));\r | |
1026 | \r | |
1027 | goto ErrorExit;\r | |
1028 | }\r | |
1029 | \r | |
1030 | MnpDeviceData->EnableSystemPoll = EnableSystemPoll;\r | |
1031 | }\r | |
1032 | \r | |
1033 | //\r | |
1034 | // Change the receive filters if need.\r | |
1035 | //\r | |
1036 | Status = MnpConfigReceiveFilters (MnpDeviceData);\r | |
1037 | \r | |
1038 | ErrorExit:\r | |
1039 | return Status;\r | |
1040 | }\r | |
1041 | \r | |
1042 | \r | |
1043 | /**\r | |
1044 | Stop the managed network.\r | |
1045 | \r | |
1046 | @param[in, out] MnpServiceData Pointer to the mnp service context data.\r | |
1047 | \r | |
1048 | @retval EFI_SUCCESS The managed network is stopped.\r | |
1049 | @retval Others Other errors as indicated.\r | |
1050 | \r | |
1051 | **/\r | |
1052 | EFI_STATUS\r | |
1053 | MnpStop (\r | |
1054 | IN OUT MNP_SERVICE_DATA *MnpServiceData\r | |
1055 | )\r | |
1056 | {\r | |
1057 | EFI_STATUS Status;\r | |
1058 | MNP_DEVICE_DATA *MnpDeviceData;\r | |
1059 | \r | |
1060 | NET_CHECK_SIGNATURE (MnpServiceData, MNP_SERVICE_DATA_SIGNATURE);\r | |
1061 | MnpDeviceData = MnpServiceData->MnpDeviceData;\r | |
1062 | ASSERT (MnpDeviceData->ConfiguredChildrenNumber > 0);\r | |
1063 | \r | |
1064 | //\r | |
1065 | // Configure the receive filters.\r | |
1066 | //\r | |
1067 | MnpConfigReceiveFilters (MnpDeviceData);\r | |
1068 | \r | |
1069 | //\r | |
1070 | // Decrease the children number.\r | |
1071 | //\r | |
1072 | MnpDeviceData->ConfiguredChildrenNumber--;\r | |
1073 | \r | |
1074 | if (MnpDeviceData->ConfiguredChildrenNumber > 0) {\r | |
1075 | //\r | |
1076 | // If there are other configured chilren, return and keep the timers and\r | |
1077 | // simple network unchanged.\r | |
1078 | //\r | |
1079 | return EFI_SUCCESS;\r | |
1080 | }\r | |
1081 | \r | |
1082 | //\r | |
1083 | // No configured children now.\r | |
1084 | //\r | |
1085 | if (MnpDeviceData->EnableSystemPoll) {\r | |
1086 | //\r | |
1087 | // The system poll in on, cancel the poll timer.\r | |
1088 | //\r | |
1089 | Status = gBS->SetTimer (MnpDeviceData->PollTimer, TimerCancel, 0);\r | |
1090 | MnpDeviceData->EnableSystemPoll = FALSE;\r | |
1091 | }\r | |
1092 | \r | |
1093 | //\r | |
1094 | // Cancel the timeout timer.\r | |
1095 | //\r | |
1096 | Status = gBS->SetTimer (MnpDeviceData->TimeoutCheckTimer, TimerCancel, 0);\r | |
1097 | \r | |
1098 | //\r | |
1099 | // Stop the simple network.\r | |
1100 | //\r | |
1101 | Status = MnpStopSnp (MnpDeviceData->Snp);\r | |
1102 | return Status;\r | |
1103 | }\r | |
1104 | \r | |
1105 | \r | |
1106 | /**\r | |
1107 | Flush the instance's received data.\r | |
1108 | \r | |
1109 | @param[in, out] Instance Pointer to the mnp instance context data.\r | |
1110 | \r | |
1111 | **/\r | |
1112 | VOID\r | |
1113 | MnpFlushRcvdDataQueue (\r | |
1114 | IN OUT MNP_INSTANCE_DATA *Instance\r | |
1115 | )\r | |
1116 | {\r | |
1117 | EFI_TPL OldTpl;\r | |
1118 | MNP_RXDATA_WRAP *RxDataWrap;\r | |
1119 | \r | |
1120 | NET_CHECK_SIGNATURE (Instance, MNP_INSTANCE_DATA_SIGNATURE);\r | |
1121 | \r | |
1122 | OldTpl = gBS->RaiseTPL (TPL_NOTIFY);\r | |
1123 | \r | |
1124 | while (!IsListEmpty (&Instance->RcvdPacketQueue)) {\r | |
1125 | //\r | |
1126 | // Remove all the Wraps.\r | |
1127 | //\r | |
1128 | RxDataWrap = NET_LIST_HEAD (&Instance->RcvdPacketQueue, MNP_RXDATA_WRAP, WrapEntry);\r | |
1129 | \r | |
1130 | //\r | |
1131 | // Recycle the RxDataWrap.\r | |
1132 | //\r | |
1133 | MnpRecycleRxData (NULL, (VOID *) RxDataWrap);\r | |
1134 | Instance->RcvdPacketQueueSize--;\r | |
1135 | }\r | |
1136 | \r | |
1137 | ASSERT (Instance->RcvdPacketQueueSize == 0);\r | |
1138 | \r | |
1139 | gBS->RestoreTPL (OldTpl);\r | |
1140 | }\r | |
1141 | \r | |
1142 | \r | |
1143 | /**\r | |
1144 | Configure the Instance using ConfigData.\r | |
1145 | \r | |
1146 | @param[in, out] Instance Pointer to the mnp instance context data.\r | |
1147 | @param[in] ConfigData Pointer to the configuration data used to configure\r | |
1148 | the isntance.\r | |
1149 | \r | |
1150 | @retval EFI_SUCCESS The Instance is configured.\r | |
1151 | @retval EFI_UNSUPPORTED EnableReceiveTimestamps is on and the\r | |
1152 | implementation doesn't support it.\r | |
1153 | @retval Others Other errors as indicated.\r | |
1154 | \r | |
1155 | **/\r | |
1156 | EFI_STATUS\r | |
1157 | MnpConfigureInstance (\r | |
1158 | IN OUT MNP_INSTANCE_DATA *Instance,\r | |
1159 | IN EFI_MANAGED_NETWORK_CONFIG_DATA *ConfigData OPTIONAL\r | |
1160 | )\r | |
1161 | {\r | |
1162 | EFI_STATUS Status;\r | |
1163 | MNP_SERVICE_DATA *MnpServiceData;\r | |
1164 | MNP_DEVICE_DATA *MnpDeviceData;\r | |
1165 | EFI_MANAGED_NETWORK_CONFIG_DATA *OldConfigData;\r | |
1166 | EFI_MANAGED_NETWORK_CONFIG_DATA *NewConfigData;\r | |
1167 | BOOLEAN IsConfigUpdate;\r | |
1168 | \r | |
1169 | NET_CHECK_SIGNATURE (Instance, MNP_INSTANCE_DATA_SIGNATURE);\r | |
1170 | \r | |
1171 | if ((ConfigData != NULL) && ConfigData->EnableReceiveTimestamps) {\r | |
1172 | //\r | |
1173 | // Don't support timestamp.\r | |
1174 | //\r | |
1175 | return EFI_UNSUPPORTED;\r | |
1176 | }\r | |
1177 | \r | |
1178 | Status = EFI_SUCCESS;\r | |
1179 | \r | |
1180 | MnpServiceData = Instance->MnpServiceData;\r | |
1181 | MnpDeviceData = MnpServiceData->MnpDeviceData;\r | |
1182 | NET_CHECK_SIGNATURE (MnpDeviceData, MNP_DEVICE_DATA_SIGNATURE);\r | |
1183 | \r | |
1184 | IsConfigUpdate = (BOOLEAN) ((Instance->Configured) && (ConfigData != NULL));\r | |
1185 | \r | |
1186 | OldConfigData = &Instance->ConfigData;\r | |
1187 | NewConfigData = ConfigData;\r | |
1188 | if (NewConfigData == NULL) {\r | |
1189 | //\r | |
1190 | // Restore back the default config data if a reset of this instance\r | |
1191 | // is required.\r | |
1192 | //\r | |
1193 | NewConfigData = &mMnpDefaultConfigData;\r | |
1194 | }\r | |
1195 | \r | |
1196 | //\r | |
1197 | // Reset the instance's receive filter.\r | |
1198 | //\r | |
1199 | Instance->ReceiveFilter = 0;\r | |
1200 | \r | |
1201 | //\r | |
1202 | // Clear the receive counters according to the old ConfigData.\r | |
1203 | //\r | |
1204 | if (OldConfigData->EnableUnicastReceive) {\r | |
1205 | MnpDeviceData->UnicastCount--;\r | |
1206 | }\r | |
1207 | \r | |
1208 | if (OldConfigData->EnableMulticastReceive) {\r | |
1209 | MnpDeviceData->MulticastCount--;\r | |
1210 | }\r | |
1211 | \r | |
1212 | if (OldConfigData->EnableBroadcastReceive) {\r | |
1213 | MnpDeviceData->BroadcastCount--;\r | |
1214 | }\r | |
1215 | \r | |
1216 | if (OldConfigData->EnablePromiscuousReceive) {\r | |
1217 | MnpDeviceData->PromiscuousCount--;\r | |
1218 | }\r | |
1219 | \r | |
1220 | //\r | |
1221 | // Set the receive filter counters and the receive filter of the\r | |
1222 | // instance according to the new ConfigData.\r | |
1223 | //\r | |
1224 | if (NewConfigData->EnableUnicastReceive) {\r | |
1225 | MnpDeviceData->UnicastCount++;\r | |
1226 | Instance->ReceiveFilter |= MNP_RECEIVE_UNICAST;\r | |
1227 | }\r | |
1228 | \r | |
1229 | if (NewConfigData->EnableMulticastReceive) {\r | |
1230 | MnpDeviceData->MulticastCount++;\r | |
1231 | }\r | |
1232 | \r | |
1233 | if (NewConfigData->EnableBroadcastReceive) {\r | |
1234 | MnpDeviceData->BroadcastCount++;\r | |
1235 | Instance->ReceiveFilter |= MNP_RECEIVE_BROADCAST;\r | |
1236 | }\r | |
1237 | \r | |
1238 | if (NewConfigData->EnablePromiscuousReceive) {\r | |
1239 | MnpDeviceData->PromiscuousCount++;\r | |
1240 | }\r | |
1241 | \r | |
1242 | if (OldConfigData->FlushQueuesOnReset) {\r | |
1243 | MnpFlushRcvdDataQueue (Instance);\r | |
1244 | }\r | |
1245 | \r | |
1246 | if (ConfigData == NULL) {\r | |
1247 | Instance->ManagedNetwork.Cancel (&Instance->ManagedNetwork, NULL);\r | |
1248 | }\r | |
1249 | \r | |
1250 | if (!NewConfigData->EnableMulticastReceive) {\r | |
1251 | MnpGroupOp (Instance, FALSE, NULL, NULL);\r | |
1252 | }\r | |
1253 | \r | |
1254 | //\r | |
1255 | // Save the new configuration data.\r | |
1256 | //\r | |
1257 | CopyMem (OldConfigData, NewConfigData, sizeof (*OldConfigData));\r | |
1258 | \r | |
1259 | Instance->Configured = (BOOLEAN) (ConfigData != NULL);\r | |
1260 | if (Instance->Configured) {\r | |
1261 | //\r | |
1262 | // The instance is configured, start the Mnp.\r | |
1263 | //\r | |
1264 | Status = MnpStart (\r | |
1265 | MnpServiceData,\r | |
1266 | IsConfigUpdate,\r | |
1267 | (BOOLEAN) !NewConfigData->DisableBackgroundPolling\r | |
1268 | );\r | |
1269 | } else {\r | |
1270 | //\r | |
1271 | // The instance is changed to the unconfigured state, stop the Mnp.\r | |
1272 | //\r | |
1273 | Status = MnpStop (MnpServiceData);\r | |
1274 | }\r | |
1275 | \r | |
1276 | return Status;\r | |
1277 | }\r | |
1278 | \r | |
1279 | /**\r | |
1280 | Configure the Snp receive filters according to the instances' receive filter\r | |
1281 | settings.\r | |
1282 | \r | |
1283 | @param[in] MnpDeviceData Pointer to the mnp device context data.\r | |
1284 | \r | |
1285 | @retval EFI_SUCCESS The receive filters is configured.\r | |
1286 | @retval EFI_OUT_OF_RESOURCES The receive filters can't be configured due\r | |
1287 | to lack of memory resource.\r | |
1288 | \r | |
1289 | **/\r | |
1290 | EFI_STATUS\r | |
1291 | MnpConfigReceiveFilters (\r | |
1292 | IN MNP_DEVICE_DATA *MnpDeviceData\r | |
1293 | )\r | |
1294 | {\r | |
1295 | EFI_STATUS Status;\r | |
1296 | EFI_SIMPLE_NETWORK_PROTOCOL *Snp;\r | |
1297 | EFI_MAC_ADDRESS *MCastFilter;\r | |
1298 | UINT32 MCastFilterCnt;\r | |
1299 | UINT32 EnableFilterBits;\r | |
1300 | UINT32 DisableFilterBits;\r | |
1301 | BOOLEAN ResetMCastFilters;\r | |
1302 | LIST_ENTRY *Entry;\r | |
1303 | UINT32 Index;\r | |
1304 | MNP_GROUP_ADDRESS *GroupAddress;\r | |
1305 | \r | |
1306 | NET_CHECK_SIGNATURE (MnpDeviceData, MNP_DEVICE_DATA_SIGNATURE);\r | |
1307 | \r | |
1308 | Snp = MnpDeviceData->Snp;\r | |
1309 | \r | |
1310 | //\r | |
1311 | // Initialize the enable filter and disable filter.\r | |
1312 | //\r | |
1313 | EnableFilterBits = 0;\r | |
1314 | DisableFilterBits = Snp->Mode->ReceiveFilterMask;\r | |
1315 | \r | |
1316 | if (MnpDeviceData->UnicastCount != 0) {\r | |
1317 | //\r | |
1318 | // Enable unicast if any instance wants to receive unicast.\r | |
1319 | //\r | |
1320 | EnableFilterBits |= EFI_SIMPLE_NETWORK_RECEIVE_UNICAST;\r | |
1321 | }\r | |
1322 | \r | |
1323 | if (MnpDeviceData->BroadcastCount != 0) {\r | |
1324 | //\r | |
1325 | // Enable broadcast if any instance wants to receive broadcast.\r | |
1326 | //\r | |
1327 | EnableFilterBits |= EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST;\r | |
1328 | }\r | |
1329 | \r | |
1330 | MCastFilter = NULL;\r | |
1331 | MCastFilterCnt = 0;\r | |
1332 | ResetMCastFilters = TRUE;\r | |
1333 | \r | |
1334 | if ((MnpDeviceData->MulticastCount != 0) && (MnpDeviceData->GroupAddressCount != 0)) {\r | |
1335 | //\r | |
1336 | // There are instances configured to receive multicast and already some group\r | |
1337 | // addresses are joined.\r | |
1338 | //\r | |
1339 | \r | |
1340 | ResetMCastFilters = FALSE;\r | |
1341 | \r | |
1342 | if (MnpDeviceData->GroupAddressCount <= Snp->Mode->MaxMCastFilterCount) {\r | |
1343 | //\r | |
1344 | // The joind group address is less than simple network's maximum count.\r | |
1345 | // Just configure the snp to do the multicast filtering.\r | |
1346 | //\r | |
1347 | \r | |
1348 | EnableFilterBits |= EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST;\r | |
1349 | \r | |
1350 | //\r | |
1351 | // Allocate pool for the mulicast addresses.\r | |
1352 | //\r | |
1353 | MCastFilterCnt = MnpDeviceData->GroupAddressCount;\r | |
1354 | MCastFilter = AllocatePool (sizeof (EFI_MAC_ADDRESS) * MCastFilterCnt);\r | |
1355 | if (MCastFilter == NULL) {\r | |
1356 | DEBUG ((EFI_D_ERROR, "MnpConfigReceiveFilters: Failed to allocate memory resource for MCastFilter.\n"));\r | |
1357 | \r | |
1358 | return EFI_OUT_OF_RESOURCES;\r | |
1359 | }\r | |
1360 | \r | |
1361 | //\r | |
1362 | // Fill the multicast HW address buffer.\r | |
1363 | //\r | |
1364 | Index = 0;\r | |
1365 | NET_LIST_FOR_EACH (Entry, &MnpDeviceData->GroupAddressList) {\r | |
1366 | \r | |
1367 | GroupAddress = NET_LIST_USER_STRUCT (Entry, MNP_GROUP_ADDRESS, AddrEntry);\r | |
1368 | CopyMem (MCastFilter + Index, &GroupAddress->Address, sizeof (*(MCastFilter + Index)));\r | |
1369 | Index++;\r | |
1370 | \r | |
1371 | ASSERT (Index <= MCastFilterCnt);\r | |
1372 | }\r | |
1373 | } else {\r | |
1374 | //\r | |
1375 | // The maximum multicast is reached, set the filter to be promiscuous\r | |
1376 | // multicast.\r | |
1377 | //\r | |
1378 | \r | |
1379 | if ((Snp->Mode->ReceiveFilterMask & EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST) != 0) {\r | |
1380 | EnableFilterBits |= EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST;\r | |
1381 | } else {\r | |
1382 | //\r | |
1383 | // Either MULTICAST or PROMISCUOUS_MULTICAST is not supported by Snp,\r | |
1384 | // set the NIC to be promiscuous although this will tremendously degrade\r | |
1385 | // the performance.\r | |
1386 | //\r | |
1387 | EnableFilterBits |= EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS;\r | |
1388 | }\r | |
1389 | }\r | |
1390 | }\r | |
1391 | \r | |
1392 | if (MnpDeviceData->PromiscuousCount != 0) {\r | |
1393 | //\r | |
1394 | // Enable promiscuous if any instance wants to receive promiscuous.\r | |
1395 | //\r | |
1396 | EnableFilterBits |= EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS;\r | |
1397 | }\r | |
1398 | \r | |
1399 | //\r | |
1400 | // Set the disable filter.\r | |
1401 | //\r | |
1402 | DisableFilterBits ^= EnableFilterBits;\r | |
1403 | \r | |
1404 | //\r | |
1405 | // Configure the receive filters of SNP.\r | |
1406 | //\r | |
1407 | Status = Snp->ReceiveFilters (\r | |
1408 | Snp,\r | |
1409 | EnableFilterBits,\r | |
1410 | DisableFilterBits,\r | |
1411 | ResetMCastFilters,\r | |
1412 | MCastFilterCnt,\r | |
1413 | MCastFilter\r | |
1414 | );\r | |
1415 | DEBUG_CODE (\r | |
1416 | if (EFI_ERROR (Status)) {\r | |
1417 | DEBUG (\r | |
1418 | (EFI_D_ERROR,\r | |
1419 | "MnpConfigReceiveFilters: Snp->ReceiveFilters failed, %r.\n",\r | |
1420 | Status)\r | |
1421 | );\r | |
1422 | }\r | |
1423 | );\r | |
1424 | \r | |
1425 | if (MCastFilter != NULL) {\r | |
1426 | //\r | |
1427 | // Free the buffer used to hold the group addresses.\r | |
1428 | //\r | |
1429 | FreePool (MCastFilter);\r | |
1430 | }\r | |
1431 | \r | |
1432 | return Status;\r | |
1433 | }\r | |
1434 | \r | |
1435 | \r | |
1436 | /**\r | |
1437 | Add a group address control block which controls the MacAddress for\r | |
1438 | this instance.\r | |
1439 | \r | |
1440 | @param[in, out] Instance Pointer to the mnp instance context data.\r | |
1441 | @param[in, out] CtrlBlk Pointer to the group address control block.\r | |
1442 | @param[in, out] GroupAddress Pointer to the group adress.\r | |
1443 | @param[in] MacAddress Pointer to the mac address.\r | |
1444 | @param[in] HwAddressSize The hardware address size.\r | |
1445 | \r | |
1446 | @retval EFI_SUCCESS The group address control block is added.\r | |
1447 | @retval EFI_OUT_OF_RESOURCES Failed due to lack of memory resources.\r | |
1448 | \r | |
1449 | **/\r | |
1450 | EFI_STATUS\r | |
1451 | MnpGroupOpAddCtrlBlk (\r | |
1452 | IN OUT MNP_INSTANCE_DATA *Instance,\r | |
1453 | IN OUT MNP_GROUP_CONTROL_BLOCK *CtrlBlk,\r | |
1454 | IN OUT MNP_GROUP_ADDRESS *GroupAddress OPTIONAL,\r | |
1455 | IN EFI_MAC_ADDRESS *MacAddress,\r | |
1456 | IN UINT32 HwAddressSize\r | |
1457 | )\r | |
1458 | {\r | |
1459 | MNP_DEVICE_DATA *MnpDeviceData;\r | |
1460 | \r | |
1461 | NET_CHECK_SIGNATURE (Instance, MNP_INSTANCE_DATA_SIGNATURE);\r | |
1462 | \r | |
1463 | MnpDeviceData = Instance->MnpServiceData->MnpDeviceData;\r | |
1464 | NET_CHECK_SIGNATURE (MnpDeviceData, MNP_DEVICE_DATA_SIGNATURE);\r | |
1465 | \r | |
1466 | if (GroupAddress == NULL) {\r | |
1467 | ASSERT (MacAddress != NULL);\r | |
1468 | \r | |
1469 | //\r | |
1470 | // Allocate a new GroupAddress to be added into MNP's GroupAddressList.\r | |
1471 | //\r | |
1472 | GroupAddress = AllocatePool (sizeof (MNP_GROUP_ADDRESS));\r | |
1473 | if (GroupAddress == NULL) {\r | |
1474 | \r | |
1475 | DEBUG ((EFI_D_ERROR, "MnpGroupOpFormCtrlBlk: Failed to allocate memory resource.\n"));\r | |
1476 | \r | |
1477 | return EFI_OUT_OF_RESOURCES;\r | |
1478 | }\r | |
1479 | \r | |
1480 | CopyMem (&GroupAddress->Address, MacAddress, sizeof (GroupAddress->Address));\r | |
1481 | GroupAddress->RefCnt = 0;\r | |
1482 | InsertTailList (\r | |
1483 | &MnpDeviceData->GroupAddressList,\r | |
1484 | &GroupAddress->AddrEntry\r | |
1485 | );\r | |
1486 | MnpDeviceData->GroupAddressCount++;\r | |
1487 | }\r | |
1488 | \r | |
1489 | //\r | |
1490 | // Increase the RefCnt.\r | |
1491 | //\r | |
1492 | GroupAddress->RefCnt++;\r | |
1493 | \r | |
1494 | //\r | |
1495 | // Add the CtrlBlk into the instance's GroupCtrlBlkList.\r | |
1496 | //\r | |
1497 | CtrlBlk->GroupAddress = GroupAddress;\r | |
1498 | InsertTailList (&Instance->GroupCtrlBlkList, &CtrlBlk->CtrlBlkEntry);\r | |
1499 | \r | |
1500 | return EFI_SUCCESS;\r | |
1501 | }\r | |
1502 | \r | |
1503 | \r | |
1504 | /**\r | |
1505 | Delete a group control block from the instance. If the controlled group address's\r | |
1506 | reference count reaches zero, the group address is removed too.\r | |
1507 | \r | |
1508 | @param[in] Instance Pointer to the instance context data.\r | |
1509 | @param[in] CtrlBlk Pointer to the group control block to delete.\r | |
1510 | \r | |
1511 | @return The group address controlled by the control block is no longer used or not.\r | |
1512 | \r | |
1513 | **/\r | |
1514 | BOOLEAN\r | |
1515 | MnpGroupOpDelCtrlBlk (\r | |
1516 | IN MNP_INSTANCE_DATA *Instance,\r | |
1517 | IN MNP_GROUP_CONTROL_BLOCK *CtrlBlk\r | |
1518 | )\r | |
1519 | {\r | |
1520 | MNP_DEVICE_DATA *MnpDeviceData;\r | |
1521 | MNP_GROUP_ADDRESS *GroupAddress;\r | |
1522 | \r | |
1523 | NET_CHECK_SIGNATURE (Instance, MNP_INSTANCE_DATA_SIGNATURE);\r | |
1524 | \r | |
1525 | MnpDeviceData = Instance->MnpServiceData->MnpDeviceData;\r | |
1526 | NET_CHECK_SIGNATURE (MnpDeviceData, MNP_DEVICE_DATA_SIGNATURE);\r | |
1527 | \r | |
1528 | //\r | |
1529 | // Remove and free the CtrlBlk.\r | |
1530 | //\r | |
1531 | GroupAddress = CtrlBlk->GroupAddress;\r | |
1532 | RemoveEntryList (&CtrlBlk->CtrlBlkEntry);\r | |
1533 | FreePool (CtrlBlk);\r | |
1534 | \r | |
1535 | ASSERT (GroupAddress->RefCnt > 0);\r | |
1536 | \r | |
1537 | //\r | |
1538 | // Count down the RefCnt.\r | |
1539 | //\r | |
1540 | GroupAddress->RefCnt--;\r | |
1541 | \r | |
1542 | if (GroupAddress->RefCnt == 0) {\r | |
1543 | //\r | |
1544 | // Free this GroupAddress entry if no instance uses it.\r | |
1545 | //\r | |
1546 | MnpDeviceData->GroupAddressCount--;\r | |
1547 | RemoveEntryList (&GroupAddress->AddrEntry);\r | |
1548 | FreePool (GroupAddress);\r | |
1549 | \r | |
1550 | return TRUE;\r | |
1551 | }\r | |
1552 | \r | |
1553 | return FALSE;\r | |
1554 | }\r | |
1555 | \r | |
1556 | \r | |
1557 | /**\r | |
1558 | Do the group operations for this instance.\r | |
1559 | \r | |
1560 | @param[in, out] Instance Pointer to the instance context data.\r | |
1561 | @param[in] JoinFlag Set to TRUE to join a group. Set to TRUE to\r | |
1562 | leave a group/groups.\r | |
1563 | @param[in] MacAddress Pointer to the group address to join or leave.\r | |
1564 | @param[in] CtrlBlk Pointer to the group control block if JoinFlag\r | |
1565 | is FALSE.\r | |
1566 | \r | |
1567 | @retval EFI_SUCCESS The group operation finished.\r | |
1568 | @retval EFI_OUT_OF_RESOURCES Failed due to lack of memory resources.\r | |
1569 | @retval Others Other errors as indicated.\r | |
1570 | \r | |
1571 | **/\r | |
1572 | EFI_STATUS\r | |
1573 | MnpGroupOp (\r | |
1574 | IN OUT MNP_INSTANCE_DATA *Instance,\r | |
1575 | IN BOOLEAN JoinFlag,\r | |
1576 | IN EFI_MAC_ADDRESS *MacAddress OPTIONAL,\r | |
1577 | IN MNP_GROUP_CONTROL_BLOCK *CtrlBlk OPTIONAL\r | |
1578 | )\r | |
1579 | {\r | |
1580 | MNP_DEVICE_DATA *MnpDeviceData;\r | |
1581 | LIST_ENTRY *Entry;\r | |
1582 | LIST_ENTRY *NextEntry;\r | |
1583 | MNP_GROUP_ADDRESS *GroupAddress;\r | |
1584 | EFI_SIMPLE_NETWORK_MODE *SnpMode;\r | |
1585 | MNP_GROUP_CONTROL_BLOCK *NewCtrlBlk;\r | |
1586 | EFI_STATUS Status;\r | |
1587 | BOOLEAN AddressExist;\r | |
1588 | BOOLEAN NeedUpdate;\r | |
1589 | \r | |
1590 | NET_CHECK_SIGNATURE (Instance, MNP_INSTANCE_DATA_SIGNATURE);\r | |
1591 | \r | |
1592 | MnpDeviceData = Instance->MnpServiceData->MnpDeviceData;\r | |
1593 | SnpMode = MnpDeviceData->Snp->Mode;\r | |
1594 | \r | |
1595 | if (JoinFlag) {\r | |
1596 | //\r | |
1597 | // A new gropu address is to be added.\r | |
1598 | //\r | |
1599 | GroupAddress = NULL;\r | |
1600 | AddressExist = FALSE;\r | |
1601 | \r | |
1602 | //\r | |
1603 | // Allocate memory for the control block.\r | |
1604 | //\r | |
1605 | NewCtrlBlk = AllocatePool (sizeof (MNP_GROUP_CONTROL_BLOCK));\r | |
1606 | if (NewCtrlBlk == NULL) {\r | |
1607 | DEBUG ((EFI_D_ERROR, "MnpGroupOp: Failed to allocate memory resource.\n"));\r | |
1608 | \r | |
1609 | return EFI_OUT_OF_RESOURCES;\r | |
1610 | }\r | |
1611 | \r | |
1612 | NET_LIST_FOR_EACH (Entry, &MnpDeviceData->GroupAddressList) {\r | |
1613 | //\r | |
1614 | // Check whether the MacAddress is already joined by other instances.\r | |
1615 | //\r | |
1616 | GroupAddress = NET_LIST_USER_STRUCT (Entry, MNP_GROUP_ADDRESS, AddrEntry);\r | |
1617 | if (CompareMem (MacAddress, &GroupAddress->Address, SnpMode->HwAddressSize) == 0) {\r | |
1618 | AddressExist = TRUE;\r | |
1619 | break;\r | |
1620 | }\r | |
1621 | }\r | |
1622 | \r | |
1623 | if (!AddressExist) {\r | |
1624 | GroupAddress = NULL;\r | |
1625 | }\r | |
1626 | \r | |
1627 | //\r | |
1628 | // Add the GroupAddress for this instance.\r | |
1629 | //\r | |
1630 | Status = MnpGroupOpAddCtrlBlk (\r | |
1631 | Instance,\r | |
1632 | NewCtrlBlk,\r | |
1633 | GroupAddress,\r | |
1634 | MacAddress,\r | |
1635 | SnpMode->HwAddressSize\r | |
1636 | );\r | |
1637 | if (EFI_ERROR (Status)) {\r | |
1638 | return Status;\r | |
1639 | }\r | |
1640 | \r | |
1641 | NeedUpdate = TRUE;\r | |
1642 | } else {\r | |
1643 | if (MacAddress != NULL) {\r | |
1644 | ASSERT (CtrlBlk != NULL);\r | |
1645 | \r | |
1646 | //\r | |
1647 | // Leave the specific multicast mac address.\r | |
1648 | //\r | |
1649 | NeedUpdate = MnpGroupOpDelCtrlBlk (Instance, CtrlBlk);\r | |
1650 | } else {\r | |
1651 | //\r | |
1652 | // Leave all multicast mac addresses.\r | |
1653 | //\r | |
1654 | NeedUpdate = FALSE;\r | |
1655 | \r | |
1656 | NET_LIST_FOR_EACH_SAFE (Entry, NextEntry, &Instance->GroupCtrlBlkList) {\r | |
1657 | \r | |
1658 | NewCtrlBlk = NET_LIST_USER_STRUCT (\r | |
1659 | Entry,\r | |
1660 | MNP_GROUP_CONTROL_BLOCK,\r | |
1661 | CtrlBlkEntry\r | |
1662 | );\r | |
1663 | //\r | |
1664 | // Update is required if the group address left is no longer used\r | |
1665 | // by other instances.\r | |
1666 | //\r | |
1667 | NeedUpdate = MnpGroupOpDelCtrlBlk (Instance, NewCtrlBlk);\r | |
1668 | }\r | |
1669 | }\r | |
1670 | }\r | |
1671 | \r | |
1672 | Status = EFI_SUCCESS;\r | |
1673 | \r | |
1674 | if (NeedUpdate) {\r | |
1675 | //\r | |
1676 | // Reconfigure the receive filters if necessary.\r | |
1677 | //\r | |
1678 | Status = MnpConfigReceiveFilters (MnpDeviceData);\r | |
1679 | }\r | |
1680 | \r | |
1681 | return Status;\r | |
1682 | }\r |