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c74593cd | 1 | /** @file\r |
4cda7726 | 2 | Implementation of initializing a network adapter.\r |
3 | \r | |
43b9d23d | 4 | Copyright (c) 2004 - 2016, Intel Corporation. All rights reserved.<BR>\r |
e5eed7d3 | 5 | This program and the accompanying materials are licensed \r |
4cda7726 | 6 | and made available under the terms and conditions of the BSD License which \r |
7 | accompanies this distribution. The full text of the license may be found at \r | |
8 | http://opensource.org/licenses/bsd-license.php \r | |
c74593cd | 9 | \r |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
c74593cd | 13 | **/\r |
14 | \r | |
15 | \r | |
16 | #include "Snp.h"\r | |
17 | \r | |
c74593cd | 18 | /**\r |
f3816027 | 19 | Call UNDI to initialize the interface.\r |
c74593cd | 20 | \r |
f3816027 | 21 | @param Snp Pointer to snp driver structure.\r |
22 | @param CableDetectFlag Do/don't detect the cable (depending on what \r | |
23 | undi supports).\r | |
4cda7726 | 24 | \r |
f3816027 | 25 | @retval EFI_SUCCESS UNDI is initialized successfully.\r |
26 | @retval EFI_DEVICE_ERROR UNDI could not be initialized.\r | |
27 | @retval Other Other errors as indicated.\r | |
c74593cd | 28 | \r |
29 | **/\r | |
30 | EFI_STATUS\r | |
4cda7726 | 31 | PxeInit (\r |
32 | SNP_DRIVER *Snp,\r | |
c74593cd | 33 | UINT16 CableDetectFlag\r |
34 | )\r | |
35 | {\r | |
4cda7726 | 36 | PXE_CPB_INITIALIZE *Cpb;\r |
37 | VOID *Addr;\r | |
c74593cd | 38 | EFI_STATUS Status;\r |
39 | \r | |
43b9d23d JW |
40 | Status = EFI_SUCCESS;\r |
41 | \r | |
4cda7726 | 42 | Cpb = Snp->Cpb;\r |
43 | if (Snp->TxRxBufferSize != 0) {\r | |
44 | Status = Snp->PciIo->AllocateBuffer (\r | |
45 | Snp->PciIo,\r | |
46 | AllocateAnyPages,\r | |
47 | EfiBootServicesData,\r | |
48 | SNP_MEM_PAGES (Snp->TxRxBufferSize),\r | |
49 | &Addr,\r | |
50 | 0\r | |
51 | );\r | |
c74593cd | 52 | \r |
53 | if (Status != EFI_SUCCESS) {\r | |
54 | DEBUG (\r | |
55 | (EFI_D_ERROR,\r | |
4cda7726 | 56 | "\nSnp->PxeInit() AllocateBuffer %xh (%r)\n",\r |
c74593cd | 57 | Status,\r |
58 | Status)\r | |
59 | );\r | |
60 | \r | |
61 | return Status;\r | |
62 | }\r | |
63 | \r | |
4cda7726 | 64 | ASSERT (Addr);\r |
c74593cd | 65 | \r |
4cda7726 | 66 | Snp->TxRxBuffer = Addr;\r |
c74593cd | 67 | }\r |
68 | \r | |
4cda7726 | 69 | Cpb->MemoryAddr = (UINT64)(UINTN) Snp->TxRxBuffer;\r |
c74593cd | 70 | \r |
4cda7726 | 71 | Cpb->MemoryLength = Snp->TxRxBufferSize;\r |
c74593cd | 72 | \r |
73 | //\r | |
74 | // let UNDI decide/detect these values\r | |
75 | //\r | |
4cda7726 | 76 | Cpb->LinkSpeed = 0;\r |
77 | Cpb->TxBufCnt = 0;\r | |
78 | Cpb->TxBufSize = 0;\r | |
79 | Cpb->RxBufCnt = 0;\r | |
80 | Cpb->RxBufSize = 0;\r | |
c74593cd | 81 | \r |
4cda7726 | 82 | Cpb->DuplexMode = PXE_DUPLEX_DEFAULT;\r |
c74593cd | 83 | \r |
4cda7726 | 84 | Cpb->LoopBackMode = LOOPBACK_NORMAL;\r |
c74593cd | 85 | \r |
4cda7726 | 86 | Snp->Cdb.OpCode = PXE_OPCODE_INITIALIZE;\r |
87 | Snp->Cdb.OpFlags = CableDetectFlag;\r | |
c74593cd | 88 | \r |
c9325700 ED |
89 | Snp->Cdb.CPBsize = (UINT16) sizeof (PXE_CPB_INITIALIZE);\r |
90 | Snp->Cdb.DBsize = (UINT16) sizeof (PXE_DB_INITIALIZE);\r | |
c74593cd | 91 | \r |
4cda7726 | 92 | Snp->Cdb.CPBaddr = (UINT64)(UINTN) Snp->Cpb;\r |
93 | Snp->Cdb.DBaddr = (UINT64)(UINTN) Snp->Db;\r | |
c74593cd | 94 | \r |
4cda7726 | 95 | Snp->Cdb.StatCode = PXE_STATCODE_INITIALIZE;\r |
96 | Snp->Cdb.StatFlags = PXE_STATFLAGS_INITIALIZE;\r | |
97 | Snp->Cdb.IFnum = Snp->IfNum;\r | |
98 | Snp->Cdb.Control = PXE_CONTROL_LAST_CDB_IN_LIST;\r | |
c74593cd | 99 | \r |
9cff2f8d | 100 | DEBUG ((EFI_D_NET, "\nSnp->undi.initialize() "));\r |
c74593cd | 101 | \r |
4cda7726 | 102 | (*Snp->IssueUndi32Command) ((UINT64)(UINTN) &Snp->Cdb);\r |
c74593cd | 103 | \r |
43b9d23d JW |
104 | //\r |
105 | // There are two fields need to be checked here:\r | |
106 | // First is the upper two bits (14 & 15) in the CDB.StatFlags field. Until these bits change to report \r | |
107 | // PXE_STATFLAGS_COMMAND_COMPLETE or PXE_STATFLAGS_COMMAND_FAILED, the command has not been executed by the UNDI.\r | |
108 | // Second is the CDB.StatCode field. After command execution completes, either successfully or not, \r | |
109 | // the CDB.StatCode field contains the result of the command execution.\r | |
110 | //\r | |
111 | if ((((Snp->Cdb.StatFlags) & PXE_STATFLAGS_STATUS_MASK) == PXE_STATFLAGS_COMMAND_COMPLETE) &&\r | |
112 | (Snp->Cdb.StatCode == PXE_STATCODE_SUCCESS)) {\r | |
113 | //\r | |
114 | // If cable detect feature is enabled in CDB.OpFlags, check the CDB.StatFlags to see if there is an \r | |
115 | // active connection to this network device. If the no media StatFlag is set, the UNDI and network \r | |
116 | // device are still initialized. \r | |
117 | //\r | |
118 | if (CableDetectFlag == PXE_OPFLAGS_INITIALIZE_DETECT_CABLE) {\r | |
119 | if(((Snp->Cdb.StatFlags) & PXE_STATFLAGS_INITIALIZED_NO_MEDIA) != PXE_STATFLAGS_INITIALIZED_NO_MEDIA) {\r | |
120 | Snp->Mode.MediaPresent = TRUE;\r | |
121 | } else {\r | |
122 | Snp->Mode.MediaPresent = FALSE;\r | |
123 | }\r | |
124 | }\r | |
125 | \r | |
126 | Snp->Mode.State = EfiSimpleNetworkInitialized;\r | |
127 | Status = EFI_SUCCESS;\r | |
c74593cd | 128 | } else {\r |
129 | DEBUG (\r | |
9cff2f8d | 130 | (EFI_D_WARN,\r |
4cda7726 | 131 | "\nSnp->undi.initialize() %xh:%xh\n",\r |
132 | Snp->Cdb.StatFlags,\r | |
133 | Snp->Cdb.StatCode)\r | |
c74593cd | 134 | );\r |
135 | \r | |
4cda7726 | 136 | if (Snp->TxRxBuffer != NULL) {\r |
137 | Snp->PciIo->FreeBuffer (\r | |
138 | Snp->PciIo,\r | |
139 | SNP_MEM_PAGES (Snp->TxRxBufferSize),\r | |
140 | (VOID *) Snp->TxRxBuffer\r | |
c74593cd | 141 | );\r |
142 | }\r | |
143 | \r | |
4cda7726 | 144 | Snp->TxRxBuffer = NULL;\r |
c74593cd | 145 | \r |
4cda7726 | 146 | Status = EFI_DEVICE_ERROR;\r |
c74593cd | 147 | }\r |
148 | \r | |
149 | return Status;\r | |
150 | }\r | |
151 | \r | |
152 | \r | |
153 | /**\r | |
4cda7726 | 154 | Resets a network adapter and allocates the transmit and receive buffers \r |
155 | required by the network interface; optionally, also requests allocation of \r | |
156 | additional transmit and receive buffers.\r | |
157 | \r | |
158 | This function allocates the transmit and receive buffers required by the network\r | |
159 | interface. If this allocation fails, then EFI_OUT_OF_RESOURCES is returned.\r | |
160 | If the allocation succeeds and the network interface is successfully initialized,\r | |
161 | then EFI_SUCCESS will be returned.\r | |
162 | \r | |
163 | @param This A pointer to the EFI_SIMPLE_NETWORK_PROTOCOL instance.\r | |
164 | \r | |
165 | @param ExtraRxBufferSize The size, in bytes, of the extra receive buffer space\r | |
166 | that the driver should allocate for the network interface.\r | |
167 | Some network interfaces will not be able to use the \r | |
168 | extra buffer, and the caller will not know if it is \r | |
169 | actually being used.\r | |
170 | @param ExtraTxBufferSize The size, in bytes, of the extra transmit buffer space\r | |
171 | that the driver should allocate for the network interface.\r | |
172 | Some network interfaces will not be able to use the\r | |
173 | extra buffer, and the caller will not know if it is\r | |
174 | actually being used.\r | |
175 | \r | |
176 | @retval EFI_SUCCESS The network interface was initialized.\r | |
177 | @retval EFI_NOT_STARTED The network interface has not been started.\r | |
178 | @retval EFI_OUT_OF_RESOURCES There was not enough memory for the transmit and\r | |
179 | receive buffers.\r | |
180 | @retval EFI_INVALID_PARAMETER This parameter was NULL or did not point to a valid\r | |
181 | EFI_SIMPLE_NETWORK_PROTOCOL structure.\r | |
182 | @retval EFI_DEVICE_ERROR The command could not be sent to the network interface.\r | |
183 | @retval EFI_UNSUPPORTED The increased buffer size feature is not supported.\r | |
c74593cd | 184 | \r |
185 | **/\r | |
186 | EFI_STATUS\r | |
187 | EFIAPI\r | |
4cda7726 | 188 | SnpUndi32Initialize (\r |
189 | IN EFI_SIMPLE_NETWORK_PROTOCOL *This,\r | |
190 | IN UINTN ExtraRxBufferSize OPTIONAL,\r | |
191 | IN UINTN ExtraTxBufferSize OPTIONAL\r | |
c74593cd | 192 | )\r |
193 | {\r | |
194 | EFI_STATUS EfiStatus;\r | |
4cda7726 | 195 | SNP_DRIVER *Snp;\r |
c74593cd | 196 | EFI_TPL OldTpl;\r |
197 | \r | |
4cda7726 | 198 | if (This == NULL) {\r |
c74593cd | 199 | return EFI_INVALID_PARAMETER;\r |
200 | }\r | |
201 | \r | |
4cda7726 | 202 | Snp = EFI_SIMPLE_NETWORK_DEV_FROM_THIS (This);\r |
c74593cd | 203 | \r |
204 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r | |
205 | \r | |
4cda7726 | 206 | if (Snp == NULL) {\r |
c74593cd | 207 | EfiStatus = EFI_INVALID_PARAMETER;\r |
208 | goto ON_EXIT;\r | |
209 | }\r | |
210 | \r | |
4cda7726 | 211 | switch (Snp->Mode.State) {\r |
c74593cd | 212 | case EfiSimpleNetworkStarted:\r |
213 | break;\r | |
214 | \r | |
215 | case EfiSimpleNetworkStopped:\r | |
216 | EfiStatus = EFI_NOT_STARTED;\r | |
217 | goto ON_EXIT;\r | |
218 | \r | |
219 | default:\r | |
220 | EfiStatus = EFI_DEVICE_ERROR;\r | |
221 | goto ON_EXIT;\r | |
222 | }\r | |
223 | \r | |
224 | EfiStatus = gBS->CreateEvent (\r | |
225 | EVT_NOTIFY_WAIT,\r | |
226 | TPL_NOTIFY,\r | |
227 | &SnpWaitForPacketNotify,\r | |
4cda7726 | 228 | Snp,\r |
229 | &Snp->Snp.WaitForPacket\r | |
c74593cd | 230 | );\r |
231 | \r | |
232 | if (EFI_ERROR (EfiStatus)) {\r | |
4cda7726 | 233 | Snp->Snp.WaitForPacket = NULL;\r |
c74593cd | 234 | EfiStatus = EFI_DEVICE_ERROR;\r |
235 | goto ON_EXIT;\r | |
236 | }\r | |
237 | //\r | |
238 | //\r | |
239 | //\r | |
4cda7726 | 240 | Snp->Mode.MCastFilterCount = 0;\r |
241 | Snp->Mode.ReceiveFilterSetting = 0;\r | |
242 | ZeroMem (Snp->Mode.MCastFilter, sizeof Snp->Mode.MCastFilter);\r | |
c74593cd | 243 | CopyMem (\r |
4cda7726 | 244 | &Snp->Mode.CurrentAddress,\r |
245 | &Snp->Mode.PermanentAddress,\r | |
c74593cd | 246 | sizeof (EFI_MAC_ADDRESS)\r |
247 | );\r | |
248 | \r | |
249 | //\r | |
250 | // Compute tx/rx buffer sizes based on UNDI init info and parameters.\r | |
251 | //\r | |
4cda7726 | 252 | Snp->TxRxBufferSize = (UINT32) (Snp->InitInfo.MemoryRequired + ExtraRxBufferSize + ExtraTxBufferSize);\r |
c74593cd | 253 | \r |
128946c9 FS |
254 | //\r |
255 | // If UNDI support cable detect for INITIALIZE command, try it first.\r | |
256 | //\r | |
257 | if (Snp->CableDetectSupported) {\r | |
4cda7726 | 258 | if (PxeInit (Snp, PXE_OPFLAGS_INITIALIZE_DETECT_CABLE) == EFI_SUCCESS) {\r |
c74593cd | 259 | goto ON_EXIT;\r |
260 | }\r | |
261 | }\r | |
262 | \r | |
4cda7726 | 263 | Snp->Mode.MediaPresent = FALSE;\r |
c74593cd | 264 | \r |
4cda7726 | 265 | EfiStatus = PxeInit (Snp, PXE_OPFLAGS_INITIALIZE_DO_NOT_DETECT_CABLE);\r |
c74593cd | 266 | \r |
267 | if (EFI_ERROR (EfiStatus)) {\r | |
4cda7726 | 268 | gBS->CloseEvent (Snp->Snp.WaitForPacket);\r |
128946c9 FS |
269 | goto ON_EXIT;\r |
270 | }\r | |
271 | \r | |
272 | //\r | |
273 | // Try to update the MediaPresent field of EFI_SIMPLE_NETWORK_MODE if the UNDI support it.\r | |
274 | //\r | |
275 | if (Snp->MediaStatusSupported) {\r | |
276 | PxeGetStatus (Snp, NULL, FALSE);\r | |
c74593cd | 277 | }\r |
278 | \r | |
279 | ON_EXIT:\r | |
280 | gBS->RestoreTPL (OldTpl);\r | |
281 | \r | |
282 | return EfiStatus;\r | |
283 | }\r |