+++ /dev/null
-/** @file\r
- Implementation of Managed Network Protocol public services.\r
-\r
-Copyright (c) 2005 - 2016, Intel Corporation. All rights reserved.<BR>\r
-SPDX-License-Identifier: BSD-2-Clause-Patent\r
-\r
-**/\r
-\r
-#include "MnpImpl.h"\r
-\r
-/**\r
- Returns the operational parameters for the current MNP child driver. May also\r
- support returning the underlying SNP driver mode data.\r
-\r
- The GetModeData() function is used to read the current mode data (operational\r
- parameters) from the MNP or the underlying SNP.\r
-\r
- @param[in] This Pointer to the EFI_MANAGED_NETWORK_PROTOCOL instance.\r
- @param[out] MnpConfigData Pointer to storage for MNP operational parameters. Type\r
- EFI_MANAGED_NETWORK_CONFIG_DATA is defined in "Related\r
- Definitions" below.\r
- @param[out] SnpModeData Pointer to storage for SNP operational parameters. This\r
- feature may be unsupported. Type EFI_SIMPLE_NETWORK_MODE\r
- is defined in the EFI_SIMPLE_NETWORK_PROTOCOL.\r
-\r
- @retval EFI_SUCCESS The operation completed successfully.\r
- @retval EFI_INVALID_PARAMETER This is NULL.\r
- @retval EFI_UNSUPPORTED The requested feature is unsupported in this\r
- MNP implementation.\r
- @retval EFI_NOT_STARTED This MNP child driver instance has not been\r
- configured. The default values are returned in\r
- MnpConfigData if it is not NULL.\r
- @retval Others The mode data could not be read.\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-MnpGetModeData (\r
- IN EFI_MANAGED_NETWORK_PROTOCOL *This,\r
- OUT EFI_MANAGED_NETWORK_CONFIG_DATA *MnpConfigData OPTIONAL,\r
- OUT EFI_SIMPLE_NETWORK_MODE *SnpModeData OPTIONAL\r
- )\r
-{\r
- MNP_INSTANCE_DATA *Instance;\r
- EFI_SIMPLE_NETWORK_PROTOCOL *Snp;\r
- EFI_TPL OldTpl;\r
- EFI_STATUS Status;\r
- UINT32 InterruptStatus;\r
-\r
- if (This == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- Instance = MNP_INSTANCE_DATA_FROM_THIS (This);\r
-\r
- OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r
-\r
- if (MnpConfigData != NULL) {\r
- //\r
- // Copy the instance configuration data.\r
- //\r
- CopyMem (MnpConfigData, &Instance->ConfigData, sizeof (*MnpConfigData));\r
- }\r
-\r
- if (SnpModeData != NULL) {\r
- //\r
- // Copy the underlayer Snp mode data.\r
- //\r
- Snp = Instance->MnpServiceData->MnpDeviceData->Snp;\r
-\r
- //\r
- // Upon successful return of GetStatus(), the Snp->Mode->MediaPresent\r
- // will be updated to reflect any change of media status\r
- //\r
- Snp->GetStatus (Snp, &InterruptStatus, NULL);\r
- CopyMem (SnpModeData, Snp->Mode, sizeof (*SnpModeData));\r
- }\r
-\r
- if (!Instance->Configured) {\r
- Status = EFI_NOT_STARTED;\r
- } else {\r
- Status = EFI_SUCCESS;\r
- }\r
-\r
- gBS->RestoreTPL (OldTpl);\r
-\r
- return Status;\r
-}\r
-\r
-\r
-/**\r
- Sets or clears the operational parameters for the MNP child driver.\r
-\r
- The Configure() function is used to set, change, or reset the operational\r
- parameters for the MNP child driver instance. Until the operational parameters\r
- have been set, no network traffic can be sent or received by this MNP child\r
- driver instance. Once the operational parameters have been reset, no more\r
- traffic can be sent or received until the operational parameters have been set\r
- again.\r
- Each MNP child driver instance can be started and stopped independently of\r
- each other by setting or resetting their receive filter settings with the\r
- Configure() function.\r
- After any successful call to Configure(), the MNP child driver instance is\r
- started. The internal periodic timer (if supported) is enabled. Data can be\r
- transmitted and may be received if the receive filters have also been enabled.\r
- Note: If multiple MNP child driver instances will receive the same packet\r
- because of overlapping receive filter settings, then the first MNP child\r
- driver instance will receive the original packet and additional instances will\r
- receive copies of the original packet.\r
- Note: Warning: Receive filter settings that overlap will consume extra\r
- processor and/or DMA resources and degrade system and network performance.\r
-\r
- @param[in] This Pointer to the EFI_MANAGED_NETWORK_PROTOCOL instance.\r
- @param[in] MnpConfigData Pointer to configuration data that will be assigned\r
- to the MNP child driver instance. If NULL, the MNP\r
- child driver instance is reset to startup defaults\r
- and all pending transmit and receive requests are\r
- flushed. Type EFI_MANAGED_NETWORK_CONFIG_DATA is\r
- defined in EFI_MANAGED_NETWORK_PROTOCOL.GetModeData().\r
-\r
- @retval EFI_SUCCESS The operation completed successfully.\r
- @retval EFI_INVALID_PARAMETER One or more of the following conditions is\r
- TRUE:\r
- * This is NULL.\r
- * MnpConfigData.ProtocolTypeFilter is not\r
- valid.\r
- The operational data for the MNP child driver\r
- instance is unchanged.\r
- @retval EFI_OUT_OF_RESOURCES Required system resources (usually memory)\r
- could not be allocated.\r
- The MNP child driver instance has been reset to\r
- startup defaults.\r
- @retval EFI_UNSUPPORTED The requested feature is unsupported in\r
- this [MNP] implementation. The operational data\r
- for the MNP child driver instance is unchanged.\r
- @retval EFI_DEVICE_ERROR An unexpected network or system error\r
- occurred. The MNP child driver instance has\r
- been reset to startup defaults.\r
- @retval Others The MNP child driver instance has been reset to\r
- startup defaults.\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-MnpConfigure (\r
- IN EFI_MANAGED_NETWORK_PROTOCOL *This,\r
- IN EFI_MANAGED_NETWORK_CONFIG_DATA *MnpConfigData OPTIONAL\r
- )\r
-{\r
- MNP_INSTANCE_DATA *Instance;\r
- EFI_TPL OldTpl;\r
- EFI_STATUS Status;\r
-\r
- if ((This == NULL) ||\r
- ((MnpConfigData != NULL) &&\r
- (MnpConfigData->ProtocolTypeFilter > 0) &&\r
- (MnpConfigData->ProtocolTypeFilter <= 1500))\r
- ) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- Instance = MNP_INSTANCE_DATA_FROM_THIS (This);\r
-\r
- OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r
-\r
- if ((MnpConfigData == NULL) && (!Instance->Configured)) {\r
- //\r
- // If the instance is not configured and a reset is requested, just return.\r
- //\r
- Status = EFI_SUCCESS;\r
- goto ON_EXIT;\r
- }\r
-\r
- //\r
- // Configure the instance.\r
- //\r
- Status = MnpConfigureInstance (Instance, MnpConfigData);\r
-\r
-ON_EXIT:\r
- gBS->RestoreTPL (OldTpl);\r
-\r
- return Status;\r
-}\r
-\r
-\r
-/**\r
- Translates an IP multicast address to a hardware (MAC) multicast address. This\r
- function may be unsupported in some MNP implementations.\r
-\r
- The McastIpToMac() function translates an IP multicast address to a hardware\r
- (MAC) multicast address. This function may be implemented by calling the\r
- underlying EFI_SIMPLE_NETWORK. MCastIpToMac() function, which may also be\r
- unsupported in some MNP implementations.\r
-\r
- @param[in] This Pointer to the EFI_MANAGED_NETWORK_PROTOCOL instance.\r
- @param[in] Ipv6Flag Set to TRUE to if IpAddress is an IPv6 multicast address.\r
- Set to FALSE if IpAddress is an IPv4 multicast address.\r
- @param[in] IpAddress Pointer to the multicast IP address (in network byte\r
- order) to convert.\r
- @param[out] MacAddress Pointer to the resulting multicast MAC address.\r
-\r
- @retval EFI_SUCCESS The operation completed successfully.\r
- @retval EFI_INVALID_PARAMETER One of the following conditions is TRUE:\r
- * This is NULL.\r
- * IpAddress is NULL.\r
- * IpAddress is not a valid multicast IP\r
- address.\r
- * MacAddress is NULL.\r
- @retval EFI_NOT_STARTED This MNP child driver instance has not been\r
- configured.\r
- @retval EFI_UNSUPPORTED The requested feature is unsupported in this\r
- MNP implementation.\r
- @retval EFI_DEVICE_ERROR An unexpected network or system error occurred.\r
- @retval Others The address could not be converted.\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-MnpMcastIpToMac (\r
- IN EFI_MANAGED_NETWORK_PROTOCOL *This,\r
- IN BOOLEAN Ipv6Flag,\r
- IN EFI_IP_ADDRESS *IpAddress,\r
- OUT EFI_MAC_ADDRESS *MacAddress\r
- )\r
-{\r
- EFI_STATUS Status;\r
- MNP_INSTANCE_DATA *Instance;\r
- EFI_SIMPLE_NETWORK_PROTOCOL *Snp;\r
- EFI_TPL OldTpl;\r
- EFI_IPv6_ADDRESS *Ip6Address;\r
-\r
- if ((This == NULL) || (IpAddress == NULL) || (MacAddress == NULL)) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- Ip6Address = &IpAddress->v6;\r
-\r
- if ((Ipv6Flag && !IP6_IS_MULTICAST (Ip6Address)) ||\r
- (!Ipv6Flag && !IP4_IS_MULTICAST (EFI_NTOHL (*IpAddress)))\r
- ) {\r
- //\r
- // The IP address passed in is not a multicast address.\r
- //\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- Instance = MNP_INSTANCE_DATA_FROM_THIS (This);\r
-\r
- OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r
-\r
- if (!Instance->Configured) {\r
-\r
- Status = EFI_NOT_STARTED;\r
- goto ON_EXIT;\r
- }\r
-\r
- Snp = Instance->MnpServiceData->MnpDeviceData->Snp;\r
- ASSERT (Snp != NULL);\r
-\r
- ZeroMem (MacAddress, sizeof (EFI_MAC_ADDRESS));\r
-\r
- if (Snp->Mode->IfType == NET_IFTYPE_ETHERNET) {\r
- if (!Ipv6Flag) {\r
- //\r
- // Translate the IPv4 address into a multicast MAC address if the NIC is an\r
- // ethernet NIC according to RFC1112..\r
- //\r
- MacAddress->Addr[0] = 0x01;\r
- MacAddress->Addr[1] = 0x00;\r
- MacAddress->Addr[2] = 0x5E;\r
- MacAddress->Addr[3] = (UINT8) (IpAddress->v4.Addr[1] & 0x7F);\r
- MacAddress->Addr[4] = IpAddress->v4.Addr[2];\r
- MacAddress->Addr[5] = IpAddress->v4.Addr[3];\r
- } else {\r
- //\r
- // Translate the IPv6 address into a multicast MAC address if the NIC is an\r
- // ethernet NIC according to RFC2464.\r
- //\r
-\r
- MacAddress->Addr[0] = 0x33;\r
- MacAddress->Addr[1] = 0x33;\r
- MacAddress->Addr[2] = Ip6Address->Addr[12];\r
- MacAddress->Addr[3] = Ip6Address->Addr[13];\r
- MacAddress->Addr[4] = Ip6Address->Addr[14];\r
- MacAddress->Addr[5] = Ip6Address->Addr[15];\r
- }\r
-\r
- Status = EFI_SUCCESS;\r
- } else {\r
- //\r
- // Invoke Snp to translate the multicast IP address.\r
- //\r
- Status = Snp->MCastIpToMac (\r
- Snp,\r
- Ipv6Flag,\r
- IpAddress,\r
- MacAddress\r
- );\r
- }\r
-\r
-ON_EXIT:\r
- gBS->RestoreTPL (OldTpl);\r
-\r
- return Status;\r
-}\r
-\r
-/**\r
- Enables and disables receive filters for multicast address. This function may\r
- be unsupported in some MNP implementations.\r
-\r
- The Groups() function only adds and removes multicast MAC addresses from the\r
- filter list. The MNP driver does not transmit or process Internet Group\r
- Management Protocol (IGMP) packets. If JoinFlag is FALSE and MacAddress is\r
- NULL, then all joined groups are left.\r
-\r
- @param[in] This Pointer to the EFI_MANAGED_NETWORK_PROTOCOL instance.\r
- @param[in] JoinFlag Set to TRUE to join this multicast group.\r
- Set to FALSE to leave this multicast group.\r
- @param[in] MacAddress Pointer to the multicast MAC group (address) to join or\r
- leave.\r
-\r
- @retval EFI_SUCCESS The requested operation completed successfully.\r
- @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r
- * This is NULL.\r
- * JoinFlag is TRUE and MacAddress is NULL.\r
- * MacAddress is not a valid multicast MAC\r
- address.\r
- * The MNP multicast group settings are\r
- unchanged.\r
- @retval EFI_NOT_STARTED This MNP child driver instance has not been\r
- configured.\r
- @retval EFI_ALREADY_STARTED The supplied multicast group is already joined.\r
- @retval EFI_NOT_FOUND The supplied multicast group is not joined.\r
- @retval EFI_DEVICE_ERROR An unexpected network or system error occurred.\r
- The MNP child driver instance has been reset to\r
- startup defaults.\r
- @retval EFI_UNSUPPORTED The requested feature is unsupported in this MNP\r
- implementation.\r
- @retval Others The requested operation could not be completed.\r
- The MNP multicast group settings are unchanged.\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-MnpGroups (\r
- IN EFI_MANAGED_NETWORK_PROTOCOL *This,\r
- IN BOOLEAN JoinFlag,\r
- IN EFI_MAC_ADDRESS *MacAddress OPTIONAL\r
- )\r
-{\r
- MNP_INSTANCE_DATA *Instance;\r
- EFI_SIMPLE_NETWORK_MODE *SnpMode;\r
- MNP_GROUP_CONTROL_BLOCK *GroupCtrlBlk;\r
- MNP_GROUP_ADDRESS *GroupAddress;\r
- LIST_ENTRY *ListEntry;\r
- BOOLEAN AddressExist;\r
- EFI_TPL OldTpl;\r
- EFI_STATUS Status;\r
-\r
- if (This == NULL || (JoinFlag && (MacAddress == NULL))) {\r
- //\r
- // This is NULL, or it's a join operation but MacAddress is NULL.\r
- //\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- Instance = MNP_INSTANCE_DATA_FROM_THIS (This);\r
- SnpMode = Instance->MnpServiceData->MnpDeviceData->Snp->Mode;\r
-\r
- OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r
-\r
- if (!Instance->Configured) {\r
- Status = EFI_NOT_STARTED;\r
- goto ON_EXIT;\r
- }\r
-\r
- if ((!Instance->ConfigData.EnableMulticastReceive) ||\r
- ((MacAddress != NULL) && !NET_MAC_IS_MULTICAST (MacAddress, &SnpMode->BroadcastAddress, SnpMode->HwAddressSize))) {\r
- //\r
- // The instance isn't configured to do mulitcast receive. OR\r
- // the passed in MacAddress is not a mutlticast mac address.\r
- //\r
- Status = EFI_INVALID_PARAMETER;\r
- goto ON_EXIT;\r
- }\r
-\r
- Status = EFI_SUCCESS;\r
- AddressExist = FALSE;\r
- GroupCtrlBlk = NULL;\r
-\r
- if (MacAddress != NULL) {\r
- //\r
- // Search the instance's GroupCtrlBlkList to find the specific address.\r
- //\r
- NET_LIST_FOR_EACH (ListEntry, &Instance->GroupCtrlBlkList) {\r
-\r
- GroupCtrlBlk = NET_LIST_USER_STRUCT (\r
- ListEntry,\r
- MNP_GROUP_CONTROL_BLOCK,\r
- CtrlBlkEntry\r
- );\r
- GroupAddress = GroupCtrlBlk->GroupAddress;\r
- if (0 == CompareMem (\r
- MacAddress,\r
- &GroupAddress->Address,\r
- SnpMode->HwAddressSize\r
- )) {\r
- //\r
- // There is already the same multicast mac address configured.\r
- //\r
- AddressExist = TRUE;\r
- break;\r
- }\r
- }\r
-\r
- if (JoinFlag && AddressExist) {\r
- //\r
- // The multicast mac address to join already exists.\r
- //\r
- Status = EFI_ALREADY_STARTED;\r
- }\r
-\r
- if (!JoinFlag && !AddressExist) {\r
- //\r
- // The multicast mac address to leave doesn't exist in this instance.\r
- //\r
- Status = EFI_NOT_FOUND;\r
- }\r
-\r
- if (EFI_ERROR (Status)) {\r
- goto ON_EXIT;\r
- }\r
- } else if (IsListEmpty (&Instance->GroupCtrlBlkList)) {\r
- //\r
- // The MacAddress is NULL and there is no configured multicast mac address,\r
- // just return.\r
- //\r
- goto ON_EXIT;\r
- }\r
-\r
- //\r
- // OK, it is time to take action.\r
- //\r
- Status = MnpGroupOp (Instance, JoinFlag, MacAddress, GroupCtrlBlk);\r
-\r
-ON_EXIT:\r
- gBS->RestoreTPL (OldTpl);\r
-\r
- return Status;\r
-}\r
-\r
-/**\r
- Places asynchronous outgoing data packets into the transmit queue.\r
-\r
- The Transmit() function places a completion token into the transmit packet\r
- queue. This function is always asynchronous.\r
- The caller must fill in the Token.Event and Token.TxData fields in the\r
- completion token, and these fields cannot be NULL. When the transmit operation\r
- completes, the MNP updates the Token.Status field and the Token.Event is\r
- signaled.\r
- Note: There may be a performance penalty if the packet needs to be\r
- defragmented before it can be transmitted by the network device. Systems in\r
- which performance is critical should review the requirements and features of\r
- the underlying communications device and drivers.\r
-\r
-\r
- @param[in] This Pointer to the EFI_MANAGED_NETWORK_PROTOCOL instance.\r
- @param[in] Token Pointer to a token associated with the transmit data\r
- descriptor. Type EFI_MANAGED_NETWORK_COMPLETION_TOKEN\r
- is defined in "Related Definitions" below.\r
-\r
- @retval EFI_SUCCESS The transmit completion token was cached.\r
- @retval EFI_NOT_STARTED This MNP child driver instance has not been\r
- configured.\r
- @retval EFI_INVALID_PARAMETER One or more of the following conditions is\r
- TRUE:\r
- * This is NULL.\r
- * Token is NULL.\r
- * Token.Event is NULL.\r
- * Token.TxData is NULL.\r
- * Token.TxData.DestinationAddress is not\r
- NULL and Token.TxData.HeaderLength is zero.\r
- * Token.TxData.FragmentCount is zero.\r
- * (Token.TxData.HeaderLength +\r
- Token.TxData.DataLength) is not equal to the\r
- sum of the\r
- Token.TxData.FragmentTable[].FragmentLength\r
- fields.\r
- * One or more of the\r
- Token.TxData.FragmentTable[].FragmentLength\r
- fields is zero.\r
- * One or more of the\r
- Token.TxData.FragmentTable[].FragmentBufferfields\r
- is NULL.\r
- * Token.TxData.DataLength is greater than MTU.\r
- @retval EFI_ACCESS_DENIED The transmit completion token is already in the\r
- transmit queue.\r
- @retval EFI_OUT_OF_RESOURCES The transmit data could not be queued due to a\r
- lack of system resources (usually memory).\r
- @retval EFI_DEVICE_ERROR An unexpected system or network error occurred.\r
- The MNP child driver instance has been reset to\r
- startup defaults.\r
- @retval EFI_NOT_READY The transmit request could not be queued because\r
- the transmit queue is full.\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-MnpTransmit (\r
- IN EFI_MANAGED_NETWORK_PROTOCOL *This,\r
- IN EFI_MANAGED_NETWORK_COMPLETION_TOKEN *Token\r
- )\r
-{\r
- EFI_STATUS Status;\r
- MNP_INSTANCE_DATA *Instance;\r
- MNP_SERVICE_DATA *MnpServiceData;\r
- UINT8 *PktBuf;\r
- UINT32 PktLen;\r
- EFI_TPL OldTpl;\r
-\r
- if ((This == NULL) || (Token == NULL)) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- Instance = MNP_INSTANCE_DATA_FROM_THIS (This);\r
-\r
- OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r
-\r
- if (!Instance->Configured) {\r
-\r
- Status = EFI_NOT_STARTED;\r
- goto ON_EXIT;\r
- }\r
-\r
- if (!MnpIsValidTxToken (Instance, Token)) {\r
- //\r
- // The Token is invalid.\r
- //\r
- Status = EFI_INVALID_PARAMETER;\r
- goto ON_EXIT;\r
- }\r
-\r
- MnpServiceData = Instance->MnpServiceData;\r
- NET_CHECK_SIGNATURE (MnpServiceData, MNP_SERVICE_DATA_SIGNATURE);\r
-\r
- //\r
- // Build the tx packet\r
- //\r
- Status = MnpBuildTxPacket (MnpServiceData, Token->Packet.TxData, &PktBuf, &PktLen);\r
- if (EFI_ERROR (Status)) {\r
- goto ON_EXIT;\r
- }\r
-\r
- //\r
- // OK, send the packet synchronously.\r
- //\r
- Status = MnpSyncSendPacket (MnpServiceData, PktBuf, PktLen, Token);\r
-\r
-ON_EXIT:\r
- gBS->RestoreTPL (OldTpl);\r
-\r
- return Status;\r
-}\r
-\r
-\r
-/**\r
- Places an asynchronous receiving request into the receiving queue.\r
-\r
- The Receive() function places a completion token into the receive packet\r
- queue. This function is always asynchronous.\r
- The caller must fill in the Token.Event field in the completion token, and\r
- this field cannot be NULL. When the receive operation completes, the MNP\r
- updates the Token.Status and Token.RxData fields and the Token.Event is\r
- signaled.\r
-\r
- @param[in] This Pointer to the EFI_MANAGED_NETWORK_PROTOCOL instance.\r
- @param[in] Token Pointer to a token associated with the receive\r
- data descriptor. Type\r
- EFI_MANAGED_NETWORK_COMPLETION_TOKEN is defined in\r
- EFI_MANAGED_NETWORK_PROTOCOL.Transmit().\r
-\r
- @retval EFI_SUCCESS The receive completion token was cached.\r
- @retval EFI_NOT_STARTED This MNP child driver instance has not been\r
- configured.\r
- @retval EFI_INVALID_PARAMETER One or more of the following conditions is\r
- TRUE:\r
- * This is NULL.\r
- * Token is NULL.\r
- * Token.Event is NULL\r
- @retval EFI_OUT_OF_RESOURCES The transmit data could not be queued due to a\r
- lack of system resources (usually memory).\r
- @retval EFI_DEVICE_ERROR An unexpected system or network error occurred.\r
- The MNP child driver instance has been reset to\r
- startup defaults.\r
- @retval EFI_ACCESS_DENIED The receive completion token was already in the\r
- receive queue.\r
- @retval EFI_NOT_READY The receive request could not be queued because\r
- the receive queue is full.\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-MnpReceive (\r
- IN EFI_MANAGED_NETWORK_PROTOCOL *This,\r
- IN EFI_MANAGED_NETWORK_COMPLETION_TOKEN *Token\r
- )\r
-{\r
- EFI_STATUS Status;\r
- MNP_INSTANCE_DATA *Instance;\r
- EFI_TPL OldTpl;\r
-\r
- if ((This == NULL) || (Token == NULL) || (Token->Event == NULL)) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- Instance = MNP_INSTANCE_DATA_FROM_THIS (This);\r
-\r
- OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r
-\r
- if (!Instance->Configured) {\r
- Status = EFI_NOT_STARTED;\r
- goto ON_EXIT;\r
- }\r
-\r
- //\r
- // Check whether this token(event) is already in the rx token queue.\r
- //\r
- Status = NetMapIterate (&Instance->RxTokenMap, MnpTokenExist, (VOID *) Token);\r
- if (EFI_ERROR (Status)) {\r
- goto ON_EXIT;\r
- }\r
-\r
- //\r
- // Insert the Token into the RxTokenMap.\r
- //\r
- Status = NetMapInsertTail (&Instance->RxTokenMap, (VOID *) Token, NULL);\r
- if (!EFI_ERROR (Status)) {\r
- //\r
- // Try to deliver any buffered packets.\r
- //\r
- Status = MnpInstanceDeliverPacket (Instance);\r
-\r
- //\r
- // Dispatch the DPC queued by the NotifyFunction of Token->Event.\r
- //\r
- DispatchDpc ();\r
- }\r
-\r
-ON_EXIT:\r
- gBS->RestoreTPL (OldTpl);\r
-\r
- return Status;\r
-}\r
-\r
-/**\r
- Aborts an asynchronous transmit or receive request.\r
-\r
- The Cancel() function is used to abort a pending transmit or receive request.\r
- If the token is in the transmit or receive request queues, after calling this\r
- function, Token.Status will be set to EFI_ABORTED and then Token.Event will be\r
- signaled. If the token is not in one of the queues, which usually means that\r
- the asynchronous operation has completed, this function will not signal the\r
- token and EFI_NOT_FOUND is returned.\r
-\r
- @param[in] This Pointer to the EFI_MANAGED_NETWORK_PROTOCOL instance.\r
- @param[in] Token Pointer to a token that has been issued by\r
- EFI_MANAGED_NETWORK_PROTOCOL.Transmit() or\r
- EFI_MANAGED_NETWORK_PROTOCOL.Receive(). If NULL, all\r
- pending tokens are aborted.\r
-\r
- @retval EFI_SUCCESS The asynchronous I/O request was aborted and\r
- Token.Event was signaled. When Token is NULL,\r
- all pending requests were aborted and their\r
- events were signaled.\r
- @retval EFI_NOT_STARTED This MNP child driver instance has not been\r
- configured.\r
- @retval EFI_INVALID_PARAMETER This is NULL.\r
- @retval EFI_NOT_FOUND When Token is not NULL, the asynchronous I/O\r
- request was not found in the transmit or\r
- receive queue. It has either completed or was\r
- not issued by Transmit() and Receive().\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-MnpCancel (\r
- IN EFI_MANAGED_NETWORK_PROTOCOL *This,\r
- IN EFI_MANAGED_NETWORK_COMPLETION_TOKEN *Token OPTIONAL\r
- )\r
-{\r
- EFI_STATUS Status;\r
- MNP_INSTANCE_DATA *Instance;\r
- EFI_TPL OldTpl;\r
-\r
- if (This == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- Instance = MNP_INSTANCE_DATA_FROM_THIS (This);\r
-\r
- OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r
-\r
- if (!Instance->Configured) {\r
- Status = EFI_NOT_STARTED;\r
- goto ON_EXIT;\r
- }\r
-\r
- //\r
- // Iterate the RxTokenMap to cancel the specified Token.\r
- //\r
- Status = NetMapIterate (&Instance->RxTokenMap, MnpCancelTokens, (VOID *) Token);\r
- if (Token != NULL) {\r
- Status = (Status == EFI_ABORTED) ? EFI_SUCCESS : EFI_NOT_FOUND;\r
- }\r
-\r
- //\r
- // Dispatch the DPC queued by the NotifyFunction of the cancled token's events.\r
- //\r
- DispatchDpc ();\r
-\r
-ON_EXIT:\r
- gBS->RestoreTPL (OldTpl);\r
-\r
- return Status;\r
-}\r
-\r
-/**\r
- Polls for incoming data packets and processes outgoing data packets.\r
-\r
- The Poll() function can be used by network drivers and applications to\r
- increase the rate that data packets are moved between the communications\r
- device and the transmit and receive queues.\r
- Normally, a periodic timer event internally calls the Poll() function. But, in\r
- some systems, the periodic timer event may not call Poll() fast enough to\r
- transmit and/or receive all data packets without missing packets. Drivers and\r
- applications that are experiencing packet loss should try calling the Poll()\r
- function more often.\r
-\r
- @param[in] This Pointer to the EFI_MANAGED_NETWORK_PROTOCOL instance.\r
-\r
- @retval EFI_SUCCESS Incoming or outgoing data was processed.\r
- @retval EFI_NOT_STARTED This MNP child driver instance has not been\r
- configured.\r
- @retval EFI_DEVICE_ERROR An unexpected system or network error occurred. The\r
- MNP child driver instance has been reset to startup\r
- defaults.\r
- @retval EFI_NOT_READY No incoming or outgoing data was processed. Consider\r
- increasing the polling rate.\r
- @retval EFI_TIMEOUT Data was dropped out of the transmit and/or receive\r
- queue. Consider increasing the polling rate.\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-MnpPoll (\r
- IN EFI_MANAGED_NETWORK_PROTOCOL *This\r
- )\r
-{\r
- EFI_STATUS Status;\r
- MNP_INSTANCE_DATA *Instance;\r
- EFI_TPL OldTpl;\r
-\r
- if (This == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- Instance = MNP_INSTANCE_DATA_FROM_THIS (This);\r
-\r
- OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r
-\r
- if (!Instance->Configured) {\r
- Status = EFI_NOT_STARTED;\r
- goto ON_EXIT;\r
- }\r
-\r
- //\r
- // Try to receive packets.\r
- //\r
- Status = MnpReceivePacket (Instance->MnpServiceData->MnpDeviceData);\r
-\r
- //\r
- // Dispatch the DPC queued by the NotifyFunction of rx token's events.\r
- //\r
- DispatchDpc ();\r
-\r
-ON_EXIT:\r
- gBS->RestoreTPL (OldTpl);\r
-\r
- return Status;\r
-}\r
projects / mirror_edk2.git / blobdiff