projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| 80682e9b LE |
1 | /** @file\r |
| 2 | \r | |
| 3 | Implementation of the SNP.Shutdown() function and its private helpers if any.\r | |
| 4 | \r | |
| 5 | Copyright (C) 2013, Red Hat, Inc.\r | |
| 6 | Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>\r | |
| 7 | \r | |
| 8 | This program and the accompanying materials are licensed and made available\r | |
| 9 | under the terms and conditions of the BSD License which accompanies this\r | |
| 10 | distribution. The full text of the license may be found at\r | |
| 11 | http://opensource.org/licenses/bsd-license.php\r | |
| 12 | \r | |
| 13 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT\r | |
| 14 | WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
| 15 | \r | |
| 16 | **/\r | |
| 17 | \r | |
| 18 | #include <Library/UefiBootServicesTableLib.h>\r | |
| 19 | \r | |
| 20 | #include "VirtioNet.h"\r | |
| 21 | \r | |
| 22 | /**\r | |
| 23 | Resets a network adapter and leaves it in a state that is safe for another\r | |
| 24 | driver to initialize.\r | |
| 25 | \r | |
| 26 | @param This Protocol instance pointer.\r | |
| 27 | \r | |
| 28 | @retval EFI_SUCCESS The network interface was shutdown.\r | |
| 29 | @retval EFI_NOT_STARTED The network interface has not been started.\r | |
| 30 | @retval EFI_INVALID_PARAMETER One or more of the parameters has an\r | |
| 31 | unsupported value.\r | |
| 32 | @retval EFI_DEVICE_ERROR The command could not be sent to the network\r | |
| 33 | interface.\r | |
| 34 | @retval EFI_UNSUPPORTED This function is not supported by the network\r | |
| 35 | interface.\r | |
| 36 | \r | |
| 37 | **/\r | |
| 38 | \r | |
| 39 | EFI_STATUS\r | |
| 40 | EFIAPI\r | |
| 41 | VirtioNetShutdown (\r | |
| 42 | IN EFI_SIMPLE_NETWORK_PROTOCOL *This\r | |
| 43 | )\r | |
| 44 | {\r | |
| 45 | VNET_DEV *Dev;\r | |
| 46 | EFI_TPL OldTpl;\r | |
| 47 | EFI_STATUS Status;\r | |
| 48 | \r | |
| 49 | if (This == NULL) {\r | |
| 50 | return EFI_INVALID_PARAMETER;\r | |
| 51 | }\r | |
| 52 | \r | |
| 53 | Dev = VIRTIO_NET_FROM_SNP (This);\r | |
| 54 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r | |
| 55 | switch (Dev->Snm.State) {\r | |
| 56 | case EfiSimpleNetworkStopped:\r | |
| 57 | Status = EFI_NOT_STARTED;\r | |
| 58 | goto Exit;\r | |
| 59 | case EfiSimpleNetworkStarted:\r | |
| 60 | Status = EFI_DEVICE_ERROR;\r | |
| 61 | goto Exit;\r | |
| 62 | default:\r | |
| 63 | break;\r | |
| 64 | }\r | |
| 65 | \r | |
| 56f65ed8 | 66 | Dev->VirtIo->SetDeviceStatus (Dev->VirtIo, 0);\r |
| 80682e9b LE |
67 | VirtioNetShutdownRx (Dev);\r |
| 68 | VirtioNetShutdownTx (Dev);\r | |
| 69 | VirtioRingUninit (&Dev->TxRing);\r | |
| 70 | VirtioRingUninit (&Dev->RxRing);\r | |
| 71 | \r | |
| 72 | Dev->Snm.State = EfiSimpleNetworkStarted;\r | |
| 73 | Status = EFI_SUCCESS;\r | |
| 74 | \r | |
| 75 | Exit:\r | |
| 76 | gBS->RestoreTPL (OldTpl);\r | |
| 77 | return Status;\r | |
| 78 | }\r |