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a0818cc1 | 1 | /** @file\r |
4cda7726 | 2 | Implementation of shuting down a network adapter.\r |
d1102dba LG |
3 | \r |
4 | Copyright (c) 2004 - 2018, Intel Corporation. All rights reserved.<BR>\r | |
9d510e61 | 5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
a0818cc1 | 6 | \r |
a0818cc1 | 7 | **/\r |
8 | \r | |
9 | #include "Snp.h"\r | |
10 | \r | |
11 | \r | |
12 | /**\r | |
f3816027 | 13 | Call UNDI to shut down the interface.\r |
a0818cc1 | 14 | \r |
f3816027 | 15 | @param Snp Pointer to snp driver structure.\r |
a0818cc1 | 16 | \r |
f3816027 | 17 | @retval EFI_SUCCESS UNDI is shut down successfully.\r |
18 | @retval EFI_DEVICE_ERROR UNDI could not be shut down.\r | |
a0818cc1 | 19 | \r |
20 | **/\r | |
21 | EFI_STATUS\r | |
4cda7726 | 22 | PxeShutdown (\r |
23 | IN SNP_DRIVER *Snp\r | |
a0818cc1 | 24 | )\r |
25 | {\r | |
4cda7726 | 26 | Snp->Cdb.OpCode = PXE_OPCODE_SHUTDOWN;\r |
27 | Snp->Cdb.OpFlags = PXE_OPFLAGS_NOT_USED;\r | |
28 | Snp->Cdb.CPBsize = PXE_CPBSIZE_NOT_USED;\r | |
29 | Snp->Cdb.DBsize = PXE_DBSIZE_NOT_USED;\r | |
30 | Snp->Cdb.CPBaddr = PXE_CPBADDR_NOT_USED;\r | |
31 | Snp->Cdb.DBaddr = PXE_DBADDR_NOT_USED;\r | |
32 | Snp->Cdb.StatCode = PXE_STATCODE_INITIALIZE;\r | |
33 | Snp->Cdb.StatFlags = PXE_STATFLAGS_INITIALIZE;\r | |
34 | Snp->Cdb.IFnum = Snp->IfNum;\r | |
35 | Snp->Cdb.Control = PXE_CONTROL_LAST_CDB_IN_LIST;\r | |
a0818cc1 | 36 | \r |
37 | //\r | |
38 | // Issue UNDI command and check result.\r | |
39 | //\r | |
9cff2f8d | 40 | DEBUG ((EFI_D_NET, "\nsnp->undi.shutdown() "));\r |
a0818cc1 | 41 | \r |
4cda7726 | 42 | (*Snp->IssueUndi32Command) ((UINT64)(UINTN) &Snp->Cdb);\r |
a0818cc1 | 43 | \r |
4cda7726 | 44 | if (Snp->Cdb.StatCode != PXE_STATCODE_SUCCESS) {\r |
a0818cc1 | 45 | //\r |
46 | // UNDI could not be shutdown. Return UNDI error.\r | |
47 | //\r | |
9cff2f8d | 48 | DEBUG ((EFI_D_WARN, "\nsnp->undi.shutdown() %xh:%xh\n", Snp->Cdb.StatFlags, Snp->Cdb.StatCode));\r |
a0818cc1 | 49 | \r |
50 | return EFI_DEVICE_ERROR;\r | |
51 | }\r | |
52 | //\r | |
53 | // Free allocated memory.\r | |
54 | //\r | |
4cda7726 | 55 | if (Snp->TxRxBuffer != NULL) {\r |
56 | Snp->PciIo->FreeBuffer (\r | |
57 | Snp->PciIo,\r | |
58 | SNP_MEM_PAGES (Snp->TxRxBufferSize),\r | |
59 | (VOID *) Snp->TxRxBuffer\r | |
a0818cc1 | 60 | );\r |
61 | }\r | |
62 | \r | |
4cda7726 | 63 | Snp->TxRxBuffer = NULL;\r |
64 | Snp->TxRxBufferSize = 0;\r | |
a0818cc1 | 65 | \r |
66 | return EFI_SUCCESS;\r | |
67 | }\r | |
68 | \r | |
69 | \r | |
70 | /**\r | |
d1102dba LG |
71 | Resets a network adapter and leaves it in a state that is safe for another\r |
72 | driver to initialize.\r | |
73 | \r | |
4cda7726 | 74 | This function releases the memory buffers assigned in the Initialize() call.\r |
75 | Pending transmits and receives are lost, and interrupts are cleared and disabled.\r | |
d1102dba | 76 | After this call, only the Initialize() and Stop() calls may be used. If the\r |
4cda7726 | 77 | network interface was successfully shutdown, then EFI_SUCCESS will be returned.\r |
78 | If the driver has not been initialized, EFI_DEVICE_ERROR will be returned.\r | |
79 | \r | |
80 | @param This A pointer to the EFI_SIMPLE_NETWORK_PROTOCOL instance.\r | |
81 | \r | |
82 | @retval EFI_SUCCESS The network interface was shutdown.\r | |
83 | @retval EFI_NOT_STARTED The network interface has not been started.\r | |
d1102dba | 84 | @retval EFI_INVALID_PARAMETER This parameter was NULL or did not point to a valid\r |
4cda7726 | 85 | EFI_SIMPLE_NETWORK_PROTOCOL structure.\r |
86 | @retval EFI_DEVICE_ERROR The command could not be sent to the network interface.\r | |
a0818cc1 | 87 | \r |
88 | **/\r | |
89 | EFI_STATUS\r | |
90 | EFIAPI\r | |
4cda7726 | 91 | SnpUndi32Shutdown (\r |
92 | IN EFI_SIMPLE_NETWORK_PROTOCOL *This\r | |
a0818cc1 | 93 | )\r |
94 | {\r | |
4cda7726 | 95 | SNP_DRIVER *Snp;\r |
a0818cc1 | 96 | EFI_STATUS Status;\r |
97 | EFI_TPL OldTpl;\r | |
98 | \r | |
99 | //\r | |
4cda7726 | 100 | // Get pointer to SNP driver instance for *This.\r |
a0818cc1 | 101 | //\r |
4cda7726 | 102 | if (This == NULL) {\r |
a0818cc1 | 103 | return EFI_INVALID_PARAMETER;\r |
104 | }\r | |
105 | \r | |
4cda7726 | 106 | Snp = EFI_SIMPLE_NETWORK_DEV_FROM_THIS (This);\r |
a0818cc1 | 107 | \r |
108 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r | |
109 | \r | |
110 | //\r | |
4cda7726 | 111 | // Return error if the SNP is not initialized.\r |
a0818cc1 | 112 | //\r |
4cda7726 | 113 | switch (Snp->Mode.State) {\r |
a0818cc1 | 114 | case EfiSimpleNetworkInitialized:\r |
115 | break;\r | |
116 | \r | |
117 | case EfiSimpleNetworkStopped:\r | |
118 | Status = EFI_NOT_STARTED;\r | |
119 | goto ON_EXIT;\r | |
120 | \r | |
121 | default:\r | |
122 | Status = EFI_DEVICE_ERROR;\r | |
123 | goto ON_EXIT;\r | |
124 | }\r | |
d1102dba | 125 | \r |
4cda7726 | 126 | Status = PxeShutdown (Snp);\r |
a0818cc1 | 127 | \r |
4cda7726 | 128 | Snp->Mode.State = EfiSimpleNetworkStarted;\r |
129 | Snp->Mode.ReceiveFilterSetting = 0;\r | |
a0818cc1 | 130 | \r |
4cda7726 | 131 | Snp->Mode.MCastFilterCount = 0;\r |
132 | Snp->Mode.ReceiveFilterSetting = 0;\r | |
133 | ZeroMem (Snp->Mode.MCastFilter, sizeof Snp->Mode.MCastFilter);\r | |
a0818cc1 | 134 | CopyMem (\r |
4cda7726 | 135 | &Snp->Mode.CurrentAddress,\r |
136 | &Snp->Mode.PermanentAddress,\r | |
a0818cc1 | 137 | sizeof (EFI_MAC_ADDRESS)\r |
138 | );\r | |
139 | \r | |
4cda7726 | 140 | gBS->CloseEvent (Snp->Snp.WaitForPacket);\r |
a0818cc1 | 141 | \r |
142 | ON_EXIT:\r | |
143 | gBS->RestoreTPL (OldTpl);\r | |
144 | \r | |
145 | return Status;\r | |
146 | }\r |