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 | |
| fc2c1543 | 7 | Copyright (c) 2017, AMD Inc, All rights reserved.<BR>\r |
| 80682e9b | 8 | \r |
| b26f0cf9 | 9 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
| 80682e9b LE |
10 | \r |
| 11 | **/\r | |
| 12 | \r | |
| 13 | #include <Library/UefiBootServicesTableLib.h>\r | |
| 14 | \r | |
| 15 | #include "VirtioNet.h"\r | |
| 16 | \r | |
| 17 | /**\r | |
| 18 | Resets a network adapter and leaves it in a state that is safe for another\r | |
| 19 | driver to initialize.\r | |
| 20 | \r | |
| 21 | @param This Protocol instance pointer.\r | |
| 22 | \r | |
| 23 | @retval EFI_SUCCESS The network interface was shutdown.\r | |
| 24 | @retval EFI_NOT_STARTED The network interface has not been started.\r | |
| 25 | @retval EFI_INVALID_PARAMETER One or more of the parameters has an\r | |
| 26 | unsupported value.\r | |
| 27 | @retval EFI_DEVICE_ERROR The command could not be sent to the network\r | |
| 28 | interface.\r | |
| 29 | @retval EFI_UNSUPPORTED This function is not supported by the network\r | |
| 30 | interface.\r | |
| 31 | \r | |
| 32 | **/\r | |
| 80682e9b LE |
33 | EFI_STATUS\r |
| 34 | EFIAPI\r | |
| 35 | VirtioNetShutdown (\r | |
| ac0a286f | 36 | IN EFI_SIMPLE_NETWORK_PROTOCOL *This\r |
| 80682e9b LE |
37 | )\r |
| 38 | {\r | |
| ac0a286f MK |
39 | VNET_DEV *Dev;\r |
| 40 | EFI_TPL OldTpl;\r | |
| 41 | EFI_STATUS Status;\r | |
| 80682e9b LE |
42 | \r |
| 43 | if (This == NULL) {\r | |
| 44 | return EFI_INVALID_PARAMETER;\r | |
| 45 | }\r | |
| 46 | \r | |
| ac0a286f | 47 | Dev = VIRTIO_NET_FROM_SNP (This);\r |
| 80682e9b LE |
48 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r |
| 49 | switch (Dev->Snm.State) {\r | |
| ac0a286f MK |
50 | case EfiSimpleNetworkStopped:\r |
| 51 | Status = EFI_NOT_STARTED;\r | |
| 52 | goto Exit;\r | |
| 53 | case EfiSimpleNetworkStarted:\r | |
| 54 | Status = EFI_DEVICE_ERROR;\r | |
| 55 | goto Exit;\r | |
| 56 | default:\r | |
| 57 | break;\r | |
| 80682e9b LE |
58 | }\r |
| 59 | \r | |
| 56f65ed8 | 60 | Dev->VirtIo->SetDeviceStatus (Dev->VirtIo, 0);\r |
| 80682e9b LE |
61 | VirtioNetShutdownRx (Dev);\r |
| 62 | VirtioNetShutdownTx (Dev);\r | |
| 940baec0 BS |
63 | VirtioNetUninitRing (Dev, &Dev->TxRing, Dev->TxRingMap);\r |
| 64 | VirtioNetUninitRing (Dev, &Dev->RxRing, Dev->RxRingMap);\r | |
| 80682e9b LE |
65 | \r |
| 66 | Dev->Snm.State = EfiSimpleNetworkStarted;\r | |
| ac0a286f | 67 | Status = EFI_SUCCESS;\r |
| 80682e9b LE |
68 | \r |
| 69 | Exit:\r | |
| 70 | gBS->RestoreTPL (OldTpl);\r | |
| 71 | return Status;\r | |
| 72 | }\r |