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c74593cd | 1 | /** @file\r |
d1102dba | 2 | Implementation of initializing a network adapter.\r |
4cda7726 | 3 | \r |
d1102dba | 4 | Copyright (c) 2004 - 2018, Intel Corporation. All rights reserved.<BR>\r |
9d510e61 | 5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
c74593cd | 6 | \r |
c74593cd | 7 | **/\r |
8 | \r | |
9 | \r | |
10 | #include "Snp.h"\r | |
11 | \r | |
c74593cd | 12 | /**\r |
f3816027 | 13 | Call UNDI to initialize the interface.\r |
c74593cd | 14 | \r |
f3816027 | 15 | @param Snp Pointer to snp driver structure.\r |
d1102dba | 16 | @param CableDetectFlag Do/don't detect the cable (depending on what\r |
f3816027 | 17 | undi supports).\r |
d1102dba | 18 | \r |
f3816027 | 19 | @retval EFI_SUCCESS UNDI is initialized successfully.\r |
20 | @retval EFI_DEVICE_ERROR UNDI could not be initialized.\r | |
21 | @retval Other Other errors as indicated.\r | |
c74593cd | 22 | \r |
23 | **/\r | |
24 | EFI_STATUS\r | |
4cda7726 | 25 | PxeInit (\r |
26 | SNP_DRIVER *Snp,\r | |
c74593cd | 27 | UINT16 CableDetectFlag\r |
28 | )\r | |
29 | {\r | |
4cda7726 | 30 | PXE_CPB_INITIALIZE *Cpb;\r |
31 | VOID *Addr;\r | |
c74593cd | 32 | EFI_STATUS Status;\r |
33 | \r | |
43b9d23d JW |
34 | Status = EFI_SUCCESS;\r |
35 | \r | |
4cda7726 | 36 | Cpb = Snp->Cpb;\r |
37 | if (Snp->TxRxBufferSize != 0) {\r | |
38 | Status = Snp->PciIo->AllocateBuffer (\r | |
39 | Snp->PciIo,\r | |
40 | AllocateAnyPages,\r | |
41 | EfiBootServicesData,\r | |
42 | SNP_MEM_PAGES (Snp->TxRxBufferSize),\r | |
43 | &Addr,\r | |
44 | 0\r | |
45 | );\r | |
c74593cd | 46 | \r |
47 | if (Status != EFI_SUCCESS) {\r | |
48 | DEBUG (\r | |
49 | (EFI_D_ERROR,\r | |
4cda7726 | 50 | "\nSnp->PxeInit() AllocateBuffer %xh (%r)\n",\r |
c74593cd | 51 | Status,\r |
52 | Status)\r | |
53 | );\r | |
54 | \r | |
55 | return Status;\r | |
56 | }\r | |
57 | \r | |
4cda7726 | 58 | ASSERT (Addr);\r |
c74593cd | 59 | \r |
4cda7726 | 60 | Snp->TxRxBuffer = Addr;\r |
c74593cd | 61 | }\r |
62 | \r | |
4cda7726 | 63 | Cpb->MemoryAddr = (UINT64)(UINTN) Snp->TxRxBuffer;\r |
c74593cd | 64 | \r |
4cda7726 | 65 | Cpb->MemoryLength = Snp->TxRxBufferSize;\r |
c74593cd | 66 | \r |
67 | //\r | |
68 | // let UNDI decide/detect these values\r | |
69 | //\r | |
4cda7726 | 70 | Cpb->LinkSpeed = 0;\r |
71 | Cpb->TxBufCnt = 0;\r | |
72 | Cpb->TxBufSize = 0;\r | |
73 | Cpb->RxBufCnt = 0;\r | |
74 | Cpb->RxBufSize = 0;\r | |
c74593cd | 75 | \r |
4cda7726 | 76 | Cpb->DuplexMode = PXE_DUPLEX_DEFAULT;\r |
c74593cd | 77 | \r |
4cda7726 | 78 | Cpb->LoopBackMode = LOOPBACK_NORMAL;\r |
c74593cd | 79 | \r |
4cda7726 | 80 | Snp->Cdb.OpCode = PXE_OPCODE_INITIALIZE;\r |
81 | Snp->Cdb.OpFlags = CableDetectFlag;\r | |
c74593cd | 82 | \r |
c9325700 ED |
83 | Snp->Cdb.CPBsize = (UINT16) sizeof (PXE_CPB_INITIALIZE);\r |
84 | Snp->Cdb.DBsize = (UINT16) sizeof (PXE_DB_INITIALIZE);\r | |
c74593cd | 85 | \r |
4cda7726 | 86 | Snp->Cdb.CPBaddr = (UINT64)(UINTN) Snp->Cpb;\r |
87 | Snp->Cdb.DBaddr = (UINT64)(UINTN) Snp->Db;\r | |
c74593cd | 88 | \r |
4cda7726 | 89 | Snp->Cdb.StatCode = PXE_STATCODE_INITIALIZE;\r |
90 | Snp->Cdb.StatFlags = PXE_STATFLAGS_INITIALIZE;\r | |
91 | Snp->Cdb.IFnum = Snp->IfNum;\r | |
92 | Snp->Cdb.Control = PXE_CONTROL_LAST_CDB_IN_LIST;\r | |
c74593cd | 93 | \r |
9cff2f8d | 94 | DEBUG ((EFI_D_NET, "\nSnp->undi.initialize() "));\r |
c74593cd | 95 | \r |
4cda7726 | 96 | (*Snp->IssueUndi32Command) ((UINT64)(UINTN) &Snp->Cdb);\r |
c74593cd | 97 | \r |
43b9d23d JW |
98 | //\r |
99 | // There are two fields need to be checked here:\r | |
d1102dba | 100 | // First is the upper two bits (14 & 15) in the CDB.StatFlags field. Until these bits change to report\r |
43b9d23d | 101 | // PXE_STATFLAGS_COMMAND_COMPLETE or PXE_STATFLAGS_COMMAND_FAILED, the command has not been executed by the UNDI.\r |
d1102dba | 102 | // Second is the CDB.StatCode field. After command execution completes, either successfully or not,\r |
43b9d23d JW |
103 | // the CDB.StatCode field contains the result of the command execution.\r |
104 | //\r | |
105 | if ((((Snp->Cdb.StatFlags) & PXE_STATFLAGS_STATUS_MASK) == PXE_STATFLAGS_COMMAND_COMPLETE) &&\r | |
106 | (Snp->Cdb.StatCode == PXE_STATCODE_SUCCESS)) {\r | |
107 | //\r | |
d1102dba LG |
108 | // If cable detect feature is enabled in CDB.OpFlags, check the CDB.StatFlags to see if there is an\r |
109 | // active connection to this network device. If the no media StatFlag is set, the UNDI and network\r | |
110 | // device are still initialized.\r | |
43b9d23d JW |
111 | //\r |
112 | if (CableDetectFlag == PXE_OPFLAGS_INITIALIZE_DETECT_CABLE) {\r | |
113 | if(((Snp->Cdb.StatFlags) & PXE_STATFLAGS_INITIALIZED_NO_MEDIA) != PXE_STATFLAGS_INITIALIZED_NO_MEDIA) {\r | |
114 | Snp->Mode.MediaPresent = TRUE;\r | |
115 | } else {\r | |
116 | Snp->Mode.MediaPresent = FALSE;\r | |
117 | }\r | |
118 | }\r | |
d1102dba | 119 | \r |
43b9d23d JW |
120 | Snp->Mode.State = EfiSimpleNetworkInitialized;\r |
121 | Status = EFI_SUCCESS;\r | |
c74593cd | 122 | } else {\r |
123 | DEBUG (\r | |
9cff2f8d | 124 | (EFI_D_WARN,\r |
4cda7726 | 125 | "\nSnp->undi.initialize() %xh:%xh\n",\r |
126 | Snp->Cdb.StatFlags,\r | |
127 | Snp->Cdb.StatCode)\r | |
c74593cd | 128 | );\r |
129 | \r | |
4cda7726 | 130 | if (Snp->TxRxBuffer != NULL) {\r |
131 | Snp->PciIo->FreeBuffer (\r | |
132 | Snp->PciIo,\r | |
133 | SNP_MEM_PAGES (Snp->TxRxBufferSize),\r | |
134 | (VOID *) Snp->TxRxBuffer\r | |
c74593cd | 135 | );\r |
136 | }\r | |
137 | \r | |
4cda7726 | 138 | Snp->TxRxBuffer = NULL;\r |
c74593cd | 139 | \r |
4cda7726 | 140 | Status = EFI_DEVICE_ERROR;\r |
c74593cd | 141 | }\r |
142 | \r | |
143 | return Status;\r | |
144 | }\r | |
145 | \r | |
146 | \r | |
147 | /**\r | |
d1102dba LG |
148 | Resets a network adapter and allocates the transmit and receive buffers\r |
149 | required by the network interface; optionally, also requests allocation of\r | |
4cda7726 | 150 | additional transmit and receive buffers.\r |
151 | \r | |
152 | This function allocates the transmit and receive buffers required by the network\r | |
153 | interface. If this allocation fails, then EFI_OUT_OF_RESOURCES is returned.\r | |
154 | If the allocation succeeds and the network interface is successfully initialized,\r | |
155 | then EFI_SUCCESS will be returned.\r | |
156 | \r | |
157 | @param This A pointer to the EFI_SIMPLE_NETWORK_PROTOCOL instance.\r | |
158 | \r | |
159 | @param ExtraRxBufferSize The size, in bytes, of the extra receive buffer space\r | |
160 | that the driver should allocate for the network interface.\r | |
d1102dba LG |
161 | Some network interfaces will not be able to use the\r |
162 | extra buffer, and the caller will not know if it is\r | |
4cda7726 | 163 | actually being used.\r |
164 | @param ExtraTxBufferSize The size, in bytes, of the extra transmit buffer space\r | |
165 | that the driver should allocate for the network interface.\r | |
166 | Some network interfaces will not be able to use the\r | |
167 | extra buffer, and the caller will not know if it is\r | |
168 | actually being used.\r | |
169 | \r | |
170 | @retval EFI_SUCCESS The network interface was initialized.\r | |
171 | @retval EFI_NOT_STARTED The network interface has not been started.\r | |
172 | @retval EFI_OUT_OF_RESOURCES There was not enough memory for the transmit and\r | |
173 | receive buffers.\r | |
174 | @retval EFI_INVALID_PARAMETER This parameter was NULL or did not point to a valid\r | |
175 | EFI_SIMPLE_NETWORK_PROTOCOL structure.\r | |
176 | @retval EFI_DEVICE_ERROR The command could not be sent to the network interface.\r | |
177 | @retval EFI_UNSUPPORTED The increased buffer size feature is not supported.\r | |
c74593cd | 178 | \r |
179 | **/\r | |
180 | EFI_STATUS\r | |
181 | EFIAPI\r | |
4cda7726 | 182 | SnpUndi32Initialize (\r |
183 | IN EFI_SIMPLE_NETWORK_PROTOCOL *This,\r | |
184 | IN UINTN ExtraRxBufferSize OPTIONAL,\r | |
185 | IN UINTN ExtraTxBufferSize OPTIONAL\r | |
c74593cd | 186 | )\r |
187 | {\r | |
188 | EFI_STATUS EfiStatus;\r | |
4cda7726 | 189 | SNP_DRIVER *Snp;\r |
c74593cd | 190 | EFI_TPL OldTpl;\r |
191 | \r | |
4cda7726 | 192 | if (This == NULL) {\r |
c74593cd | 193 | return EFI_INVALID_PARAMETER;\r |
194 | }\r | |
195 | \r | |
4cda7726 | 196 | Snp = EFI_SIMPLE_NETWORK_DEV_FROM_THIS (This);\r |
c74593cd | 197 | \r |
198 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r | |
199 | \r | |
4cda7726 | 200 | if (Snp == NULL) {\r |
c74593cd | 201 | EfiStatus = EFI_INVALID_PARAMETER;\r |
202 | goto ON_EXIT;\r | |
203 | }\r | |
204 | \r | |
4cda7726 | 205 | switch (Snp->Mode.State) {\r |
c74593cd | 206 | case EfiSimpleNetworkStarted:\r |
207 | break;\r | |
208 | \r | |
209 | case EfiSimpleNetworkStopped:\r | |
210 | EfiStatus = EFI_NOT_STARTED;\r | |
211 | goto ON_EXIT;\r | |
212 | \r | |
213 | default:\r | |
214 | EfiStatus = EFI_DEVICE_ERROR;\r | |
215 | goto ON_EXIT;\r | |
216 | }\r | |
217 | \r | |
218 | EfiStatus = gBS->CreateEvent (\r | |
219 | EVT_NOTIFY_WAIT,\r | |
220 | TPL_NOTIFY,\r | |
221 | &SnpWaitForPacketNotify,\r | |
4cda7726 | 222 | Snp,\r |
223 | &Snp->Snp.WaitForPacket\r | |
c74593cd | 224 | );\r |
225 | \r | |
226 | if (EFI_ERROR (EfiStatus)) {\r | |
4cda7726 | 227 | Snp->Snp.WaitForPacket = NULL;\r |
c74593cd | 228 | EfiStatus = EFI_DEVICE_ERROR;\r |
229 | goto ON_EXIT;\r | |
230 | }\r | |
231 | //\r | |
232 | //\r | |
233 | //\r | |
4cda7726 | 234 | Snp->Mode.MCastFilterCount = 0;\r |
235 | Snp->Mode.ReceiveFilterSetting = 0;\r | |
236 | ZeroMem (Snp->Mode.MCastFilter, sizeof Snp->Mode.MCastFilter);\r | |
c74593cd | 237 | CopyMem (\r |
4cda7726 | 238 | &Snp->Mode.CurrentAddress,\r |
239 | &Snp->Mode.PermanentAddress,\r | |
c74593cd | 240 | sizeof (EFI_MAC_ADDRESS)\r |
241 | );\r | |
242 | \r | |
243 | //\r | |
244 | // Compute tx/rx buffer sizes based on UNDI init info and parameters.\r | |
245 | //\r | |
4cda7726 | 246 | Snp->TxRxBufferSize = (UINT32) (Snp->InitInfo.MemoryRequired + ExtraRxBufferSize + ExtraTxBufferSize);\r |
c74593cd | 247 | \r |
128946c9 FS |
248 | //\r |
249 | // If UNDI support cable detect for INITIALIZE command, try it first.\r | |
250 | //\r | |
251 | if (Snp->CableDetectSupported) {\r | |
4cda7726 | 252 | if (PxeInit (Snp, PXE_OPFLAGS_INITIALIZE_DETECT_CABLE) == EFI_SUCCESS) {\r |
c74593cd | 253 | goto ON_EXIT;\r |
254 | }\r | |
255 | }\r | |
256 | \r | |
4cda7726 | 257 | Snp->Mode.MediaPresent = FALSE;\r |
c74593cd | 258 | \r |
4cda7726 | 259 | EfiStatus = PxeInit (Snp, PXE_OPFLAGS_INITIALIZE_DO_NOT_DETECT_CABLE);\r |
c74593cd | 260 | \r |
261 | if (EFI_ERROR (EfiStatus)) {\r | |
4cda7726 | 262 | gBS->CloseEvent (Snp->Snp.WaitForPacket);\r |
128946c9 FS |
263 | goto ON_EXIT;\r |
264 | }\r | |
265 | \r | |
266 | //\r | |
267 | // Try to update the MediaPresent field of EFI_SIMPLE_NETWORK_MODE if the UNDI support it.\r | |
268 | //\r | |
269 | if (Snp->MediaStatusSupported) {\r | |
270 | PxeGetStatus (Snp, NULL, FALSE);\r | |
c74593cd | 271 | }\r |
272 | \r | |
273 | ON_EXIT:\r | |
274 | gBS->RestoreTPL (OldTpl);\r | |
275 | \r | |
276 | return EfiStatus;\r | |
277 | }\r |