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8a67d61d | 1 | /** @file\r |
3e8c18da | 2 | Implementation of Managed Network Protocol public services.\r |
8a67d61d | 3 | \r |
e5eed7d3 HT |
4 | Copyright (c) 2005 - 2010, Intel Corporation. All rights reserved.<BR>\r |
5 | This program and the accompanying materials\r | |
779ae357 | 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 | |
8a67d61d | 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 | |
8a67d61d | 14 | **/\r |
8a67d61d | 15 | \r |
6e4bac4d | 16 | #include "MnpImpl.h"\r |
8a67d61d | 17 | \r |
18 | /**\r | |
b6c4ecad | 19 | Returns the operational parameters for the current MNP child driver. May also\r |
779ae357 | 20 | support returning the underlying SNP driver mode data.\r |
21 | \r | |
b6c4ecad | 22 | The GetModeData() function is used to read the current mode data (operational\r |
779ae357 | 23 | parameters) from the MNP or the underlying SNP.\r |
b6c4ecad | 24 | \r |
3e8c18da | 25 | @param[in] This Pointer to the EFI_MANAGED_NETWORK_PROTOCOL instance.\r |
26 | @param[out] MnpConfigData Pointer to storage for MNP operational parameters. Type\r | |
27 | EFI_MANAGED_NETWORK_CONFIG_DATA is defined in "Related\r | |
28 | Definitions" below.\r | |
29 | @param[out] SnpModeData Pointer to storage for SNP operational parameters. This\r | |
30 | feature may be unsupported. Type EFI_SIMPLE_NETWORK_MODE\r | |
31 | is defined in the EFI_SIMPLE_NETWORK_PROTOCOL.\r | |
779ae357 | 32 | \r |
b6c4ecad | 33 | @retval EFI_SUCCESS The operation completed successfully.\r |
34 | @retval EFI_INVALID_PARAMETER This is NULL.\r | |
35 | @retval EFI_UNSUPPORTED The requested feature is unsupported in this\r | |
36 | MNP implementation.\r | |
37 | @retval EFI_NOT_STARTED This MNP child driver instance has not been\r | |
38 | configured. The default values are returned in\r | |
39 | MnpConfigData if it is not NULL.\r | |
6e4bac4d | 40 | @retval Others The mode data could not be read.\r |
8a67d61d | 41 | \r |
42 | **/\r | |
43 | EFI_STATUS\r | |
44 | EFIAPI\r | |
45 | MnpGetModeData (\r | |
779ae357 | 46 | IN EFI_MANAGED_NETWORK_PROTOCOL *This,\r |
47 | OUT EFI_MANAGED_NETWORK_CONFIG_DATA *MnpConfigData OPTIONAL,\r | |
48 | OUT EFI_SIMPLE_NETWORK_MODE *SnpModeData OPTIONAL\r | |
8a67d61d | 49 | )\r |
50 | {\r | |
51 | MNP_INSTANCE_DATA *Instance;\r | |
52 | EFI_SIMPLE_NETWORK_PROTOCOL *Snp;\r | |
53 | EFI_TPL OldTpl;\r | |
54 | EFI_STATUS Status;\r | |
dd29f3ed | 55 | UINT32 InterruptStatus;\r |
8a67d61d | 56 | \r |
57 | if (This == NULL) {\r | |
8a67d61d | 58 | return EFI_INVALID_PARAMETER;\r |
59 | }\r | |
60 | \r | |
61 | Instance = MNP_INSTANCE_DATA_FROM_THIS (This);\r | |
62 | \r | |
e48e37fc | 63 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r |
8a67d61d | 64 | \r |
65 | if (MnpConfigData != NULL) {\r | |
66 | //\r | |
67 | // Copy the instance configuration data.\r | |
68 | //\r | |
687a2e5f | 69 | CopyMem (MnpConfigData, &Instance->ConfigData, sizeof (*MnpConfigData));\r |
8a67d61d | 70 | }\r |
71 | \r | |
72 | if (SnpModeData != NULL) {\r | |
73 | //\r | |
74 | // Copy the underlayer Snp mode data.\r | |
75 | //\r | |
779ae357 | 76 | Snp = Instance->MnpServiceData->MnpDeviceData->Snp;\r |
dd29f3ed | 77 | \r |
78 | //\r | |
79 | // Upon successful return of GetStatus(), the Snp->Mode->MediaPresent\r | |
80 | // will be updated to reflect any change of media status\r | |
81 | //\r | |
82 | Snp->GetStatus (Snp, &InterruptStatus, NULL);\r | |
687a2e5f | 83 | CopyMem (SnpModeData, Snp->Mode, sizeof (*SnpModeData));\r |
8a67d61d | 84 | }\r |
85 | \r | |
86 | if (!Instance->Configured) {\r | |
87 | Status = EFI_NOT_STARTED;\r | |
88 | } else {\r | |
89 | Status = EFI_SUCCESS;\r | |
90 | }\r | |
91 | \r | |
e48e37fc | 92 | gBS->RestoreTPL (OldTpl);\r |
8a67d61d | 93 | \r |
94 | return Status;\r | |
95 | }\r | |
96 | \r | |
97 | \r | |
98 | /**\r | |
779ae357 | 99 | Sets or clears the operational parameters for the MNP child driver.\r |
100 | \r | |
101 | The Configure() function is used to set, change, or reset the operational\r | |
b6c4ecad | 102 | parameters for the MNP child driver instance. Until the operational parameters\r |
103 | have been set, no network traffic can be sent or received by this MNP child\r | |
104 | driver instance. Once the operational parameters have been reset, no more\r | |
105 | traffic can be sent or received until the operational parameters have been set\r | |
106 | again.\r | |
107 | Each MNP child driver instance can be started and stopped independently of\r | |
108 | each other by setting or resetting their receive filter settings with the\r | |
109 | Configure() function.\r | |
110 | After any successful call to Configure(), the MNP child driver instance is\r | |
111 | started. The internal periodic timer (if supported) is enabled. Data can be\r | |
112 | transmitted and may be received if the receive filters have also been enabled.\r | |
113 | Note: If multiple MNP child driver instances will receive the same packet\r | |
114 | because of overlapping receive filter settings, then the first MNP child\r | |
115 | driver instance will receive the original packet and additional instances will\r | |
116 | receive copies of the original packet.\r | |
117 | Note: Warning: Receive filter settings that overlap will consume extra\r | |
118 | processor and/or DMA resources and degrade system and network performance.\r | |
119 | \r | |
6e4bac4d | 120 | @param[in] This Pointer to the EFI_MANAGED_NETWORK_PROTOCOL instance.\r |
121 | @param[in] MnpConfigData Pointer to configuration data that will be assigned\r | |
122 | to the MNP child driver instance. If NULL, the MNP\r | |
123 | child driver instance is reset to startup defaults\r | |
124 | and all pending transmit and receive requests are\r | |
125 | flushed. Type EFI_MANAGED_NETWORK_CONFIG_DATA is\r | |
126 | defined in EFI_MANAGED_NETWORK_PROTOCOL.GetModeData().\r | |
8a67d61d | 127 | \r |
128 | @retval EFI_SUCCESS The operation completed successfully.\r | |
b6c4ecad | 129 | @retval EFI_INVALID_PARAMETER One or more of the following conditions is\r |
130 | TRUE:\r | |
131 | * This is NULL.\r | |
132 | * MnpConfigData.ProtocolTypeFilter is not\r | |
133 | valid.\r | |
134 | The operational data for the MNP child driver\r | |
135 | instance is unchanged.\r | |
136 | @retval EFI_OUT_OF_RESOURCES Required system resources (usually memory)\r | |
137 | could not be allocated.\r | |
138 | The MNP child driver instance has been reset to\r | |
139 | startup defaults.\r | |
140 | @retval EFI_UNSUPPORTED The requested feature is unsupported in\r | |
141 | this [MNP] implementation. The operational data\r | |
142 | for the MNP child driver instance is unchanged.\r | |
143 | @retval EFI_DEVICE_ERROR An unexpected network or system error\r | |
144 | occurred. The MNP child driver instance has\r | |
145 | been reset to startup defaults.\r | |
6e4bac4d | 146 | @retval Others The MNP child driver instance has been reset to\r |
8a67d61d | 147 | startup defaults.\r |
148 | \r | |
149 | **/\r | |
150 | EFI_STATUS\r | |
151 | EFIAPI\r | |
152 | MnpConfigure (\r | |
779ae357 | 153 | IN EFI_MANAGED_NETWORK_PROTOCOL *This,\r |
154 | IN EFI_MANAGED_NETWORK_CONFIG_DATA *MnpConfigData OPTIONAL\r | |
8a67d61d | 155 | )\r |
156 | {\r | |
157 | MNP_INSTANCE_DATA *Instance;\r | |
158 | EFI_TPL OldTpl;\r | |
159 | EFI_STATUS Status;\r | |
160 | \r | |
161 | if ((This == NULL) ||\r | |
779ae357 | 162 | ((MnpConfigData != NULL) &&\r |
163 | (MnpConfigData->ProtocolTypeFilter > 0) &&\r | |
164 | (MnpConfigData->ProtocolTypeFilter <= 1500))\r | |
165 | ) {\r | |
8a67d61d | 166 | return EFI_INVALID_PARAMETER;\r |
167 | }\r | |
168 | \r | |
169 | Instance = MNP_INSTANCE_DATA_FROM_THIS (This);\r | |
170 | \r | |
e48e37fc | 171 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r |
8a67d61d | 172 | \r |
173 | if ((MnpConfigData == NULL) && (!Instance->Configured)) {\r | |
174 | //\r | |
175 | // If the instance is not configured and a reset is requested, just return.\r | |
176 | //\r | |
177 | Status = EFI_SUCCESS;\r | |
178 | goto ON_EXIT;\r | |
179 | }\r | |
180 | \r | |
181 | //\r | |
182 | // Configure the instance.\r | |
183 | //\r | |
184 | Status = MnpConfigureInstance (Instance, MnpConfigData);\r | |
185 | \r | |
186 | ON_EXIT:\r | |
e48e37fc | 187 | gBS->RestoreTPL (OldTpl);\r |
8a67d61d | 188 | \r |
189 | return Status;\r | |
190 | }\r | |
191 | \r | |
192 | \r | |
193 | /**\r | |
779ae357 | 194 | Translates an IP multicast address to a hardware (MAC) multicast address. This\r |
195 | function may be unsupported in some MNP implementations.\r | |
196 | \r | |
b6c4ecad | 197 | The McastIpToMac() function translates an IP multicast address to a hardware\r |
198 | (MAC) multicast address. This function may be implemented by calling the\r | |
6e4bac4d | 199 | underlying EFI_SIMPLE_NETWORK. MCastIpToMac() function, which may also be\r |
b6c4ecad | 200 | unsupported in some MNP implementations.\r |
201 | \r | |
6e4bac4d | 202 | @param[in] This Pointer to the EFI_MANAGED_NETWORK_PROTOCOL instance.\r |
203 | @param[in] Ipv6Flag Set to TRUE to if IpAddress is an IPv6 multicast address.\r | |
204 | Set to FALSE if IpAddress is an IPv4 multicast address.\r | |
205 | @param[in] IpAddress Pointer to the multicast IP address (in network byte\r | |
206 | order) to convert.\r | |
779ae357 | 207 | @param[out] MacAddress Pointer to the resulting multicast MAC address.\r |
b6c4ecad | 208 | \r |
209 | @retval EFI_SUCCESS The operation completed successfully.\r | |
210 | @retval EFI_INVALID_PARAMETER One of the following conditions is TRUE:\r | |
211 | * This is NULL.\r | |
212 | * IpAddress is NULL.\r | |
213 | * IpAddress is not a valid multicast IP\r | |
214 | address.\r | |
215 | * MacAddress is NULL.\r | |
216 | @retval EFI_NOT_STARTED This MNP child driver instance has not been\r | |
217 | configured.\r | |
218 | @retval EFI_UNSUPPORTED The requested feature is unsupported in this\r | |
219 | MNP implementation.\r | |
220 | @retval EFI_DEVICE_ERROR An unexpected network or system error occurred.\r | |
6e4bac4d | 221 | @retval Others The address could not be converted.\r |
8a67d61d | 222 | **/\r |
223 | EFI_STATUS\r | |
224 | EFIAPI\r | |
225 | MnpMcastIpToMac (\r | |
779ae357 | 226 | IN EFI_MANAGED_NETWORK_PROTOCOL *This,\r |
227 | IN BOOLEAN Ipv6Flag,\r | |
228 | IN EFI_IP_ADDRESS *IpAddress,\r | |
229 | OUT EFI_MAC_ADDRESS *MacAddress\r | |
8a67d61d | 230 | )\r |
231 | {\r | |
232 | EFI_STATUS Status;\r | |
233 | MNP_INSTANCE_DATA *Instance;\r | |
234 | EFI_SIMPLE_NETWORK_PROTOCOL *Snp;\r | |
235 | EFI_TPL OldTpl;\r | |
87f89c08 | 236 | EFI_IPv6_ADDRESS *Ip6Address;\r |
8a67d61d | 237 | \r |
238 | if ((This == NULL) || (IpAddress == NULL) || (MacAddress == NULL)) {\r | |
8a67d61d | 239 | return EFI_INVALID_PARAMETER;\r |
240 | }\r | |
241 | \r | |
87f89c08 | 242 | Ip6Address = &IpAddress->v6;\r |
8a67d61d | 243 | \r |
87f89c08 | 244 | if ((Ipv6Flag && !IP6_IS_MULTICAST (Ip6Address)) ||\r |
245 | (!Ipv6Flag && !IP4_IS_MULTICAST (EFI_NTOHL (*IpAddress)))\r | |
246 | ) {\r | |
8a67d61d | 247 | //\r |
87f89c08 | 248 | // The IP address passed in is not a multicast address.\r |
8a67d61d | 249 | //\r |
250 | return EFI_INVALID_PARAMETER;\r | |
251 | }\r | |
252 | \r | |
253 | Instance = MNP_INSTANCE_DATA_FROM_THIS (This);\r | |
254 | \r | |
e48e37fc | 255 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r |
8a67d61d | 256 | \r |
257 | if (!Instance->Configured) {\r | |
258 | \r | |
259 | Status = EFI_NOT_STARTED;\r | |
260 | goto ON_EXIT;\r | |
261 | }\r | |
262 | \r | |
779ae357 | 263 | Snp = Instance->MnpServiceData->MnpDeviceData->Snp;\r |
8a67d61d | 264 | ASSERT (Snp != NULL);\r |
265 | \r | |
779ae357 | 266 | ZeroMem (MacAddress, sizeof (EFI_MAC_ADDRESS));\r |
87f89c08 | 267 | \r |
8a67d61d | 268 | if (Snp->Mode->IfType == NET_IFTYPE_ETHERNET) {\r |
87f89c08 | 269 | if (!Ipv6Flag) {\r |
270 | //\r | |
271 | // Translate the IPv4 address into a multicast MAC address if the NIC is an\r | |
272 | // ethernet NIC according to RFC1112..\r | |
273 | //\r | |
274 | MacAddress->Addr[0] = 0x01;\r | |
275 | MacAddress->Addr[1] = 0x00;\r | |
276 | MacAddress->Addr[2] = 0x5E;\r | |
277 | MacAddress->Addr[3] = (UINT8) (IpAddress->v4.Addr[1] & 0x7F);\r | |
278 | MacAddress->Addr[4] = IpAddress->v4.Addr[2];\r | |
279 | MacAddress->Addr[5] = IpAddress->v4.Addr[3];\r | |
280 | } else {\r | |
281 | //\r | |
779ae357 | 282 | // Translate the IPv6 address into a multicast MAC address if the NIC is an\r |
87f89c08 | 283 | // ethernet NIC according to RFC2464.\r |
284 | //\r | |
779ae357 | 285 | \r |
87f89c08 | 286 | MacAddress->Addr[0] = 0x33;\r |
287 | MacAddress->Addr[1] = 0x33;\r | |
288 | MacAddress->Addr[2] = Ip6Address->Addr[12];\r | |
289 | MacAddress->Addr[3] = Ip6Address->Addr[13];\r | |
290 | MacAddress->Addr[4] = Ip6Address->Addr[14];\r | |
291 | MacAddress->Addr[5] = Ip6Address->Addr[15];\r | |
292 | }\r | |
8a67d61d | 293 | \r |
294 | Status = EFI_SUCCESS;\r | |
295 | } else {\r | |
296 | //\r | |
297 | // Invoke Snp to translate the multicast IP address.\r | |
298 | //\r | |
299 | Status = Snp->MCastIpToMac (\r | |
300 | Snp,\r | |
301 | Ipv6Flag,\r | |
302 | IpAddress,\r | |
303 | MacAddress\r | |
304 | );\r | |
305 | }\r | |
306 | \r | |
307 | ON_EXIT:\r | |
e48e37fc | 308 | gBS->RestoreTPL (OldTpl);\r |
8a67d61d | 309 | \r |
310 | return Status;\r | |
311 | }\r | |
312 | \r | |
8a67d61d | 313 | /**\r |
779ae357 | 314 | Enables and disables receive filters for multicast address. This function may\r |
b6c4ecad | 315 | be unsupported in some MNP implementations.\r |
779ae357 | 316 | \r |
317 | The Groups() function only adds and removes multicast MAC addresses from the\r | |
b6c4ecad | 318 | filter list. The MNP driver does not transmit or process Internet Group\r |
319 | Management Protocol (IGMP) packets. If JoinFlag is FALSE and MacAddress is\r | |
320 | NULL, then all joined groups are left.\r | |
779ae357 | 321 | \r |
3e8c18da | 322 | @param[in] This Pointer to the EFI_MANAGED_NETWORK_PROTOCOL instance.\r |
323 | @param[in] JoinFlag Set to TRUE to join this multicast group.\r | |
324 | Set to FALSE to leave this multicast group.\r | |
325 | @param[in] MacAddress Pointer to the multicast MAC group (address) to join or\r | |
326 | leave.\r | |
b6c4ecad | 327 | \r |
328 | @retval EFI_SUCCESS The requested operation completed successfully.\r | |
329 | @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r | |
330 | * This is NULL.\r | |
331 | * JoinFlag is TRUE and MacAddress is NULL.\r | |
332 | * MacAddress is not a valid multicast MAC\r | |
333 | address.\r | |
334 | * The MNP multicast group settings are\r | |
335 | unchanged.\r | |
336 | @retval EFI_NOT_STARTED This MNP child driver instance has not been\r | |
337 | configured.\r | |
338 | @retval EFI_ALREADY_STARTED The supplied multicast group is already joined.\r | |
339 | @retval EFI_NOT_FOUND The supplied multicast group is not joined.\r | |
340 | @retval EFI_DEVICE_ERROR An unexpected network or system error occurred.\r | |
341 | The MNP child driver instance has been reset to\r | |
342 | startup defaults.\r | |
343 | @retval EFI_UNSUPPORTED The requested feature is unsupported in this MNP\r | |
344 | implementation.\r | |
6e4bac4d | 345 | @retval Others The requested operation could not be completed.\r |
b6c4ecad | 346 | The MNP multicast group settings are unchanged.\r |
8a67d61d | 347 | \r |
348 | **/\r | |
349 | EFI_STATUS\r | |
350 | EFIAPI\r | |
351 | MnpGroups (\r | |
779ae357 | 352 | IN EFI_MANAGED_NETWORK_PROTOCOL *This,\r |
353 | IN BOOLEAN JoinFlag,\r | |
354 | IN EFI_MAC_ADDRESS *MacAddress OPTIONAL\r | |
8a67d61d | 355 | )\r |
356 | {\r | |
357 | MNP_INSTANCE_DATA *Instance;\r | |
358 | EFI_SIMPLE_NETWORK_MODE *SnpMode;\r | |
359 | MNP_GROUP_CONTROL_BLOCK *GroupCtrlBlk;\r | |
360 | MNP_GROUP_ADDRESS *GroupAddress;\r | |
e48e37fc | 361 | LIST_ENTRY *ListEntry;\r |
8a67d61d | 362 | BOOLEAN AddressExist;\r |
363 | EFI_TPL OldTpl;\r | |
364 | EFI_STATUS Status;\r | |
365 | \r | |
366 | if (This == NULL || (JoinFlag && (MacAddress == NULL))) {\r | |
367 | //\r | |
368 | // This is NULL, or it's a join operation but MacAddress is NULL.\r | |
369 | //\r | |
370 | return EFI_INVALID_PARAMETER;\r | |
371 | }\r | |
372 | \r | |
373 | Instance = MNP_INSTANCE_DATA_FROM_THIS (This);\r | |
779ae357 | 374 | SnpMode = Instance->MnpServiceData->MnpDeviceData->Snp->Mode;\r |
8a67d61d | 375 | \r |
e48e37fc | 376 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r |
8a67d61d | 377 | \r |
378 | if (!Instance->Configured) {\r | |
8a67d61d | 379 | Status = EFI_NOT_STARTED;\r |
380 | goto ON_EXIT;\r | |
381 | }\r | |
382 | \r | |
383 | if ((!Instance->ConfigData.EnableMulticastReceive) ||\r | |
384 | ((MacAddress != NULL) && !NET_MAC_IS_MULTICAST (MacAddress, &SnpMode->BroadcastAddress, SnpMode->HwAddressSize))) {\r | |
385 | //\r | |
386 | // The instance isn't configured to do mulitcast receive. OR\r | |
387 | // the passed in MacAddress is not a mutlticast mac address.\r | |
388 | //\r | |
389 | Status = EFI_INVALID_PARAMETER;\r | |
390 | goto ON_EXIT;\r | |
391 | }\r | |
392 | \r | |
393 | Status = EFI_SUCCESS;\r | |
394 | AddressExist = FALSE;\r | |
395 | GroupCtrlBlk = NULL;\r | |
396 | \r | |
397 | if (MacAddress != NULL) {\r | |
398 | //\r | |
399 | // Search the instance's GroupCtrlBlkList to find the specific address.\r | |
400 | //\r | |
401 | NET_LIST_FOR_EACH (ListEntry, &Instance->GroupCtrlBlkList) {\r | |
402 | \r | |
403 | GroupCtrlBlk = NET_LIST_USER_STRUCT (\r | |
404 | ListEntry,\r | |
405 | MNP_GROUP_CONTROL_BLOCK,\r | |
406 | CtrlBlkEntry\r | |
407 | );\r | |
408 | GroupAddress = GroupCtrlBlk->GroupAddress;\r | |
e48e37fc | 409 | if (0 == CompareMem (\r |
8a67d61d | 410 | MacAddress,\r |
411 | &GroupAddress->Address,\r | |
412 | SnpMode->HwAddressSize\r | |
413 | )) {\r | |
414 | //\r | |
415 | // There is already the same multicast mac address configured.\r | |
416 | //\r | |
417 | AddressExist = TRUE;\r | |
418 | break;\r | |
419 | }\r | |
420 | }\r | |
421 | \r | |
422 | if (JoinFlag && AddressExist) {\r | |
423 | //\r | |
424 | // The multicast mac address to join already exists.\r | |
425 | //\r | |
426 | Status = EFI_ALREADY_STARTED;\r | |
427 | }\r | |
428 | \r | |
429 | if (!JoinFlag && !AddressExist) {\r | |
430 | //\r | |
431 | // The multicast mac address to leave doesn't exist in this instance.\r | |
432 | //\r | |
433 | Status = EFI_NOT_FOUND;\r | |
434 | }\r | |
435 | \r | |
436 | if (EFI_ERROR (Status)) {\r | |
437 | goto ON_EXIT;\r | |
438 | }\r | |
e48e37fc | 439 | } else if (IsListEmpty (&Instance->GroupCtrlBlkList)) {\r |
8a67d61d | 440 | //\r |
441 | // The MacAddress is NULL and there is no configured multicast mac address,\r | |
442 | // just return.\r | |
443 | //\r | |
444 | goto ON_EXIT;\r | |
445 | }\r | |
446 | \r | |
447 | //\r | |
448 | // OK, it is time to take action.\r | |
449 | //\r | |
450 | Status = MnpGroupOp (Instance, JoinFlag, MacAddress, GroupCtrlBlk);\r | |
451 | \r | |
452 | ON_EXIT:\r | |
e48e37fc | 453 | gBS->RestoreTPL (OldTpl);\r |
8a67d61d | 454 | \r |
455 | return Status;\r | |
456 | }\r | |
457 | \r | |
8a67d61d | 458 | /**\r |
b6c4ecad | 459 | Places asynchronous outgoing data packets into the transmit queue.\r |
779ae357 | 460 | \r |
461 | The Transmit() function places a completion token into the transmit packet\r | |
b6c4ecad | 462 | queue. This function is always asynchronous.\r |
463 | The caller must fill in the Token.Event and Token.TxData fields in the\r | |
464 | completion token, and these fields cannot be NULL. When the transmit operation\r | |
465 | completes, the MNP updates the Token.Status field and the Token.Event is\r | |
466 | signaled.\r | |
467 | Note: There may be a performance penalty if the packet needs to be\r | |
468 | defragmented before it can be transmitted by the network device. Systems in\r | |
469 | which performance is critical should review the requirements and features of\r | |
470 | the underlying communications device and drivers.\r | |
779ae357 | 471 | \r |
472 | \r | |
3e8c18da | 473 | @param[in] This Pointer to the EFI_MANAGED_NETWORK_PROTOCOL instance.\r |
474 | @param[in] Token Pointer to a token associated with the transmit data\r | |
6e4bac4d | 475 | descriptor. Type EFI_MANAGED_NETWORK_COMPLETION_TOKEN\r |
87f89c08 | 476 | is defined in "Related Definitions" below.\r |
b6c4ecad | 477 | \r |
478 | @retval EFI_SUCCESS The transmit completion token was cached.\r | |
8a67d61d | 479 | @retval EFI_NOT_STARTED This MNP child driver instance has not been\r |
480 | configured.\r | |
b6c4ecad | 481 | @retval EFI_INVALID_PARAMETER One or more of the following conditions is\r |
482 | TRUE:\r | |
483 | * This is NULL.\r | |
484 | * Token is NULL.\r | |
485 | * Token.Event is NULL.\r | |
486 | * Token.TxData is NULL.\r | |
487 | * Token.TxData.DestinationAddress is not\r | |
488 | NULL and Token.TxData.HeaderLength is zero.\r | |
489 | * Token.TxData.FragmentCount is zero.\r | |
490 | * (Token.TxData.HeaderLength +\r | |
491 | Token.TxData.DataLength) is not equal to the\r | |
492 | sum of the\r | |
493 | Token.TxData.FragmentTable[].FragmentLength\r | |
494 | fields.\r | |
495 | * One or more of the\r | |
496 | Token.TxData.FragmentTable[].FragmentLength\r | |
497 | fields is zero.\r | |
498 | * One or more of the\r | |
499 | Token.TxData.FragmentTable[].FragmentBufferfields\r | |
500 | is NULL.\r | |
501 | * Token.TxData.DataLength is greater than MTU.\r | |
8a67d61d | 502 | @retval EFI_ACCESS_DENIED The transmit completion token is already in the\r |
503 | transmit queue.\r | |
504 | @retval EFI_OUT_OF_RESOURCES The transmit data could not be queued due to a\r | |
779ae357 | 505 | lack of system resources (usually memory).\r |
8a67d61d | 506 | @retval EFI_DEVICE_ERROR An unexpected system or network error occurred.\r |
507 | The MNP child driver instance has been reset to\r | |
508 | startup defaults.\r | |
509 | @retval EFI_NOT_READY The transmit request could not be queued because\r | |
510 | the transmit queue is full.\r | |
511 | \r | |
512 | **/\r | |
513 | EFI_STATUS\r | |
514 | EFIAPI\r | |
515 | MnpTransmit (\r | |
779ae357 | 516 | IN EFI_MANAGED_NETWORK_PROTOCOL *This,\r |
517 | IN EFI_MANAGED_NETWORK_COMPLETION_TOKEN *Token\r | |
8a67d61d | 518 | )\r |
519 | {\r | |
520 | EFI_STATUS Status;\r | |
521 | MNP_INSTANCE_DATA *Instance;\r | |
522 | MNP_SERVICE_DATA *MnpServiceData;\r | |
523 | UINT8 *PktBuf;\r | |
524 | UINT32 PktLen;\r | |
525 | EFI_TPL OldTpl;\r | |
526 | \r | |
527 | if ((This == NULL) || (Token == NULL)) {\r | |
8a67d61d | 528 | return EFI_INVALID_PARAMETER;\r |
529 | }\r | |
530 | \r | |
531 | Instance = MNP_INSTANCE_DATA_FROM_THIS (This);\r | |
532 | \r | |
e48e37fc | 533 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r |
8a67d61d | 534 | \r |
535 | if (!Instance->Configured) {\r | |
536 | \r | |
537 | Status = EFI_NOT_STARTED;\r | |
538 | goto ON_EXIT;\r | |
539 | }\r | |
540 | \r | |
541 | if (!MnpIsValidTxToken (Instance, Token)) {\r | |
542 | //\r | |
543 | // The Token is invalid.\r | |
544 | //\r | |
545 | Status = EFI_INVALID_PARAMETER;\r | |
546 | goto ON_EXIT;\r | |
547 | }\r | |
548 | \r | |
549 | MnpServiceData = Instance->MnpServiceData;\r | |
550 | NET_CHECK_SIGNATURE (MnpServiceData, MNP_SERVICE_DATA_SIGNATURE);\r | |
551 | \r | |
552 | //\r | |
553 | // Build the tx packet\r | |
554 | //\r | |
555 | MnpBuildTxPacket (MnpServiceData, Token->Packet.TxData, &PktBuf, &PktLen);\r | |
556 | \r | |
557 | //\r | |
558 | // OK, send the packet synchronously.\r | |
559 | //\r | |
560 | Status = MnpSyncSendPacket (MnpServiceData, PktBuf, PktLen, Token);\r | |
561 | \r | |
562 | ON_EXIT:\r | |
e48e37fc | 563 | gBS->RestoreTPL (OldTpl);\r |
8a67d61d | 564 | \r |
565 | return Status;\r | |
566 | }\r | |
567 | \r | |
568 | \r | |
569 | /**\r | |
b6c4ecad | 570 | Places an asynchronous receiving request into the receiving queue.\r |
779ae357 | 571 | \r |
572 | The Receive() function places a completion token into the receive packet\r | |
b6c4ecad | 573 | queue. This function is always asynchronous.\r |
574 | The caller must fill in the Token.Event field in the completion token, and\r | |
575 | this field cannot be NULL. When the receive operation completes, the MNP\r | |
576 | updates the Token.Status and Token.RxData fields and the Token.Event is\r | |
577 | signaled.\r | |
779ae357 | 578 | \r |
6e4bac4d | 579 | @param[in] This Pointer to the EFI_MANAGED_NETWORK_PROTOCOL instance.\r |
580 | @param[in] Token Pointer to a token associated with the receive\r | |
581 | data descriptor. Type\r | |
582 | EFI_MANAGED_NETWORK_COMPLETION_TOKEN is defined in\r | |
583 | EFI_MANAGED_NETWORK_PROTOCOL.Transmit().\r | |
8a67d61d | 584 | \r |
585 | @retval EFI_SUCCESS The receive completion token was cached.\r | |
586 | @retval EFI_NOT_STARTED This MNP child driver instance has not been\r | |
587 | configured.\r | |
b6c4ecad | 588 | @retval EFI_INVALID_PARAMETER One or more of the following conditions is\r |
589 | TRUE:\r | |
590 | * This is NULL.\r | |
591 | * Token is NULL.\r | |
592 | * Token.Event is NULL\r | |
8a67d61d | 593 | @retval EFI_OUT_OF_RESOURCES The transmit data could not be queued due to a\r |
594 | lack of system resources (usually memory).\r | |
595 | @retval EFI_DEVICE_ERROR An unexpected system or network error occurred.\r | |
596 | The MNP child driver instance has been reset to\r | |
597 | startup defaults.\r | |
598 | @retval EFI_ACCESS_DENIED The receive completion token was already in the\r | |
599 | receive queue.\r | |
600 | @retval EFI_NOT_READY The receive request could not be queued because\r | |
601 | the receive queue is full.\r | |
602 | \r | |
603 | **/\r | |
604 | EFI_STATUS\r | |
605 | EFIAPI\r | |
606 | MnpReceive (\r | |
779ae357 | 607 | IN EFI_MANAGED_NETWORK_PROTOCOL *This,\r |
608 | IN EFI_MANAGED_NETWORK_COMPLETION_TOKEN *Token\r | |
8a67d61d | 609 | )\r |
610 | {\r | |
611 | EFI_STATUS Status;\r | |
612 | MNP_INSTANCE_DATA *Instance;\r | |
613 | EFI_TPL OldTpl;\r | |
614 | \r | |
615 | if ((This == NULL) || (Token == NULL) || (Token->Event == NULL)) {\r | |
8a67d61d | 616 | return EFI_INVALID_PARAMETER;\r |
617 | }\r | |
618 | \r | |
619 | Instance = MNP_INSTANCE_DATA_FROM_THIS (This);\r | |
620 | \r | |
e48e37fc | 621 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r |
8a67d61d | 622 | \r |
623 | if (!Instance->Configured) {\r | |
8a67d61d | 624 | Status = EFI_NOT_STARTED;\r |
625 | goto ON_EXIT;\r | |
626 | }\r | |
627 | \r | |
628 | //\r | |
629 | // Check whether this token(event) is already in the rx token queue.\r | |
630 | //\r | |
631 | Status = NetMapIterate (&Instance->RxTokenMap, MnpTokenExist, (VOID *) Token);\r | |
632 | if (EFI_ERROR (Status)) {\r | |
8a67d61d | 633 | goto ON_EXIT;\r |
634 | }\r | |
635 | \r | |
636 | //\r | |
637 | // Insert the Token into the RxTokenMap.\r | |
638 | //\r | |
639 | Status = NetMapInsertTail (&Instance->RxTokenMap, (VOID *) Token, NULL);\r | |
8a67d61d | 640 | if (!EFI_ERROR (Status)) {\r |
641 | //\r | |
642 | // Try to deliver any buffered packets.\r | |
643 | //\r | |
644 | Status = MnpInstanceDeliverPacket (Instance);\r | |
36ee91ca | 645 | \r |
646 | //\r | |
647 | // Dispatch the DPC queued by the NotifyFunction of Token->Event.\r | |
648 | //\r | |
d8d26fb2 | 649 | DispatchDpc ();\r |
8a67d61d | 650 | }\r |
651 | \r | |
652 | ON_EXIT:\r | |
e48e37fc | 653 | gBS->RestoreTPL (OldTpl);\r |
8a67d61d | 654 | \r |
655 | return Status;\r | |
656 | }\r | |
657 | \r | |
8a67d61d | 658 | /**\r |
779ae357 | 659 | Aborts an asynchronous transmit or receive request.\r |
660 | \r | |
b6c4ecad | 661 | The Cancel() function is used to abort a pending transmit or receive request.\r |
662 | If the token is in the transmit or receive request queues, after calling this\r | |
663 | function, Token.Status will be set to EFI_ABORTED and then Token.Event will be\r | |
664 | signaled. If the token is not in one of the queues, which usually means that\r | |
665 | the asynchronous operation has completed, this function will not signal the\r | |
666 | token and EFI_NOT_FOUND is returned.\r | |
667 | \r | |
3e8c18da | 668 | @param[in] This Pointer to the EFI_MANAGED_NETWORK_PROTOCOL instance.\r |
669 | @param[in] Token Pointer to a token that has been issued by\r | |
670 | EFI_MANAGED_NETWORK_PROTOCOL.Transmit() or\r | |
779ae357 | 671 | EFI_MANAGED_NETWORK_PROTOCOL.Receive(). If NULL, all\r |
87f89c08 | 672 | pending tokens are aborted.\r |
8a67d61d | 673 | \r |
674 | @retval EFI_SUCCESS The asynchronous I/O request was aborted and\r | |
b6c4ecad | 675 | Token.Event was signaled. When Token is NULL,\r |
676 | all pending requests were aborted and their\r | |
677 | events were signaled.\r | |
8a67d61d | 678 | @retval EFI_NOT_STARTED This MNP child driver instance has not been\r |
679 | configured.\r | |
680 | @retval EFI_INVALID_PARAMETER This is NULL.\r | |
b6c4ecad | 681 | @retval EFI_NOT_FOUND When Token is not NULL, the asynchronous I/O\r |
682 | request was not found in the transmit or\r | |
683 | receive queue. It has either completed or was\r | |
684 | not issued by Transmit() and Receive().\r | |
8a67d61d | 685 | \r |
686 | **/\r | |
687 | EFI_STATUS\r | |
688 | EFIAPI\r | |
689 | MnpCancel (\r | |
779ae357 | 690 | IN EFI_MANAGED_NETWORK_PROTOCOL *This,\r |
691 | IN EFI_MANAGED_NETWORK_COMPLETION_TOKEN *Token OPTIONAL\r | |
8a67d61d | 692 | )\r |
693 | {\r | |
694 | EFI_STATUS Status;\r | |
695 | MNP_INSTANCE_DATA *Instance;\r | |
696 | EFI_TPL OldTpl;\r | |
697 | \r | |
698 | if (This == NULL) {\r | |
8a67d61d | 699 | return EFI_INVALID_PARAMETER;\r |
700 | }\r | |
701 | \r | |
702 | Instance = MNP_INSTANCE_DATA_FROM_THIS (This);\r | |
703 | \r | |
e48e37fc | 704 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r |
8a67d61d | 705 | \r |
706 | if (!Instance->Configured) {\r | |
8a67d61d | 707 | Status = EFI_NOT_STARTED;\r |
708 | goto ON_EXIT;\r | |
709 | }\r | |
710 | \r | |
711 | //\r | |
712 | // Iterate the RxTokenMap to cancel the specified Token.\r | |
713 | //\r | |
714 | Status = NetMapIterate (&Instance->RxTokenMap, MnpCancelTokens, (VOID *) Token);\r | |
8a67d61d | 715 | if (Token != NULL) {\r |
8a67d61d | 716 | Status = (Status == EFI_ABORTED) ? EFI_SUCCESS : EFI_NOT_FOUND;\r |
717 | }\r | |
718 | \r | |
36ee91ca | 719 | //\r |
720 | // Dispatch the DPC queued by the NotifyFunction of the cancled token's events.\r | |
721 | //\r | |
d8d26fb2 | 722 | DispatchDpc ();\r |
36ee91ca | 723 | \r |
8a67d61d | 724 | ON_EXIT:\r |
e48e37fc | 725 | gBS->RestoreTPL (OldTpl);\r |
8a67d61d | 726 | \r |
727 | return Status;\r | |
728 | }\r | |
729 | \r | |
8a67d61d | 730 | /**\r |
779ae357 | 731 | Polls for incoming data packets and processes outgoing data packets.\r |
732 | \r | |
733 | The Poll() function can be used by network drivers and applications to\r | |
b6c4ecad | 734 | increase the rate that data packets are moved between the communications\r |
735 | device and the transmit and receive queues.\r | |
736 | Normally, a periodic timer event internally calls the Poll() function. But, in\r | |
737 | some systems, the periodic timer event may not call Poll() fast enough to\r | |
738 | transmit and/or receive all data packets without missing packets. Drivers and\r | |
739 | applications that are experiencing packet loss should try calling the Poll()\r | |
740 | function more often.\r | |
741 | \r | |
6e4bac4d | 742 | @param[in] This Pointer to the EFI_MANAGED_NETWORK_PROTOCOL instance.\r |
b6c4ecad | 743 | \r |
744 | @retval EFI_SUCCESS Incoming or outgoing data was processed.\r | |
745 | @retval EFI_NOT_STARTED This MNP child driver instance has not been\r | |
746 | configured.\r | |
747 | @retval EFI_DEVICE_ERROR An unexpected system or network error occurred. The\r | |
748 | MNP child driver instance has been reset to startup\r | |
749 | defaults.\r | |
750 | @retval EFI_NOT_READY No incoming or outgoing data was processed. Consider\r | |
751 | increasing the polling rate.\r | |
752 | @retval EFI_TIMEOUT Data was dropped out of the transmit and/or receive\r | |
753 | queue. Consider increasing the polling rate.\r | |
8a67d61d | 754 | \r |
755 | **/\r | |
756 | EFI_STATUS\r | |
757 | EFIAPI\r | |
758 | MnpPoll (\r | |
779ae357 | 759 | IN EFI_MANAGED_NETWORK_PROTOCOL *This\r |
8a67d61d | 760 | )\r |
761 | {\r | |
762 | EFI_STATUS Status;\r | |
763 | MNP_INSTANCE_DATA *Instance;\r | |
764 | EFI_TPL OldTpl;\r | |
765 | \r | |
766 | if (This == NULL) {\r | |
767 | return EFI_INVALID_PARAMETER;\r | |
768 | }\r | |
769 | \r | |
770 | Instance = MNP_INSTANCE_DATA_FROM_THIS (This);\r | |
771 | \r | |
e48e37fc | 772 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r |
8a67d61d | 773 | \r |
774 | if (!Instance->Configured) {\r | |
775 | Status = EFI_NOT_STARTED;\r | |
776 | goto ON_EXIT;\r | |
777 | }\r | |
778 | \r | |
779 | //\r | |
780 | // Try to receive packets.\r | |
781 | //\r | |
779ae357 | 782 | Status = MnpReceivePacket (Instance->MnpServiceData->MnpDeviceData);\r |
8a67d61d | 783 | \r |
a4df47f1 | 784 | //\r |
785 | // Dispatch the DPC queued by the NotifyFunction of rx token's events.\r | |
786 | //\r | |
d8d26fb2 | 787 | DispatchDpc ();\r |
36ee91ca | 788 | \r |
8a67d61d | 789 | ON_EXIT:\r |
e48e37fc | 790 | gBS->RestoreTPL (OldTpl);\r |
8a67d61d | 791 | \r |
792 | return Status;\r | |
793 | }\r |