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b8b69433 HW |
1 | /** @file\r |
2 | The NvmExpressPei driver is used to manage non-volatile memory subsystem\r | |
3 | which follows NVM Express specification at PEI phase.\r | |
4 | \r | |
5 | Copyright (c) 2018, Intel Corporation. All rights reserved.<BR>\r | |
6 | \r | |
7 | This program and the accompanying materials\r | |
8 | are licensed and made available under the terms and conditions\r | |
9 | of the BSD License which accompanies this distribution. The\r | |
10 | 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,\r | |
14 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
15 | \r | |
16 | **/\r | |
17 | \r | |
18 | #include "NvmExpressPei.h"\r | |
19 | \r | |
20 | EFI_PEI_PPI_DESCRIPTOR mNvmeBlkIoPpiListTemplate = {\r | |
21 | EFI_PEI_PPI_DESCRIPTOR_PPI,\r | |
22 | &gEfiPeiVirtualBlockIoPpiGuid,\r | |
23 | NULL\r | |
24 | };\r | |
25 | \r | |
26 | EFI_PEI_PPI_DESCRIPTOR mNvmeBlkIo2PpiListTemplate = {\r | |
27 | EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST,\r | |
28 | &gEfiPeiVirtualBlockIo2PpiGuid,\r | |
29 | NULL\r | |
30 | };\r | |
31 | \r | |
32 | EFI_PEI_NOTIFY_DESCRIPTOR mNvmeEndOfPeiNotifyListTemplate = {\r | |
33 | (EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r | |
34 | &gEfiEndOfPeiSignalPpiGuid,\r | |
35 | NvmePeimEndOfPei\r | |
36 | };\r | |
37 | \r | |
38 | /**\r | |
39 | Check if the specified Nvm Express device namespace is active, and then get the Identify\r | |
40 | Namespace data.\r | |
41 | \r | |
42 | @param[in,out] Private The pointer to the PEI_NVME_CONTROLLER_PRIVATE_DATA data structure.\r | |
43 | @param[in] NamespaceId The specified namespace identifier.\r | |
44 | \r | |
45 | @retval EFI_SUCCESS The specified namespace in the device is successfully enumerated.\r | |
46 | @return Others Error occurs when enumerating the namespace.\r | |
47 | \r | |
48 | **/\r | |
49 | EFI_STATUS\r | |
50 | EnumerateNvmeDevNamespace (\r | |
51 | IN OUT PEI_NVME_CONTROLLER_PRIVATE_DATA *Private,\r | |
52 | IN UINT32 NamespaceId\r | |
53 | )\r | |
54 | {\r | |
55 | EFI_STATUS Status;\r | |
56 | NVME_ADMIN_NAMESPACE_DATA *NamespaceData;\r | |
57 | PEI_NVME_NAMESPACE_INFO *NamespaceInfo;\r | |
58 | UINT32 DeviceIndex;\r | |
59 | UINT32 Lbads;\r | |
60 | UINT32 Flbas;\r | |
61 | UINT32 LbaFmtIdx;\r | |
62 | \r | |
63 | NamespaceData = (NVME_ADMIN_NAMESPACE_DATA *) AllocateZeroPool (sizeof (NVME_ADMIN_NAMESPACE_DATA));\r | |
64 | if (NamespaceData == NULL) {\r | |
65 | return EFI_OUT_OF_RESOURCES;\r | |
66 | }\r | |
67 | \r | |
68 | //\r | |
69 | // Identify Namespace\r | |
70 | //\r | |
71 | Status = NvmeIdentifyNamespace (\r | |
72 | Private,\r | |
73 | NamespaceId,\r | |
74 | NamespaceData\r | |
75 | );\r | |
76 | if (EFI_ERROR (Status)) {\r | |
77 | DEBUG ((DEBUG_ERROR, "%a: NvmeIdentifyNamespace fail, Status - %r\n", __FUNCTION__, Status));\r | |
78 | goto Exit;\r | |
79 | }\r | |
80 | \r | |
81 | //\r | |
82 | // Validate Namespace\r | |
83 | //\r | |
84 | if (NamespaceData->Ncap == 0) {\r | |
85 | DEBUG ((DEBUG_INFO, "%a: Namespace ID %d is an inactive one.\n", __FUNCTION__, NamespaceId));\r | |
86 | Status = EFI_DEVICE_ERROR;\r | |
87 | goto Exit;\r | |
88 | }\r | |
89 | \r | |
90 | DeviceIndex = Private->ActiveNamespaceNum;\r | |
91 | NamespaceInfo = &Private->NamespaceInfo[DeviceIndex];\r | |
92 | NamespaceInfo->NamespaceId = NamespaceId;\r | |
93 | NamespaceInfo->NamespaceUuid = NamespaceData->Eui64;\r | |
94 | NamespaceInfo->Controller = Private;\r | |
95 | Private->ActiveNamespaceNum++;\r | |
96 | \r | |
97 | //\r | |
98 | // Build BlockIo media structure\r | |
99 | //\r | |
100 | Flbas = NamespaceData->Flbas;\r | |
101 | LbaFmtIdx = Flbas & 0xF;\r | |
102 | Lbads = NamespaceData->LbaFormat[LbaFmtIdx].Lbads;\r | |
103 | \r | |
104 | NamespaceInfo->Media.InterfaceType = MSG_NVME_NAMESPACE_DP;\r | |
105 | NamespaceInfo->Media.RemovableMedia = FALSE;\r | |
106 | NamespaceInfo->Media.MediaPresent = TRUE;\r | |
107 | NamespaceInfo->Media.ReadOnly = FALSE;\r | |
108 | NamespaceInfo->Media.BlockSize = (UINT32) 1 << Lbads;\r | |
109 | NamespaceInfo->Media.LastBlock = (EFI_PEI_LBA) NamespaceData->Nsze - 1;\r | |
110 | DEBUG ((\r | |
111 | DEBUG_INFO,\r | |
112 | "%a: Namespace ID %d - BlockSize = 0x%x, LastBlock = 0x%lx\n",\r | |
113 | __FUNCTION__,\r | |
114 | NamespaceId,\r | |
115 | NamespaceInfo->Media.BlockSize,\r | |
116 | NamespaceInfo->Media.LastBlock\r | |
117 | ));\r | |
118 | \r | |
119 | Exit:\r | |
120 | if (NamespaceData != NULL) {\r | |
121 | FreePool (NamespaceData);\r | |
122 | }\r | |
123 | \r | |
124 | return Status;\r | |
125 | }\r | |
126 | \r | |
127 | /**\r | |
128 | Discover all Nvm Express device active namespaces.\r | |
129 | \r | |
130 | @param[in,out] Private The pointer to the PEI_NVME_CONTROLLER_PRIVATE_DATA data structure.\r | |
131 | \r | |
132 | @retval EFI_SUCCESS All the namespaces in the device are successfully enumerated.\r | |
133 | @return EFI_NOT_FOUND No active namespaces can be found.\r | |
134 | \r | |
135 | **/\r | |
136 | EFI_STATUS\r | |
137 | NvmeDiscoverNamespaces (\r | |
138 | IN OUT PEI_NVME_CONTROLLER_PRIVATE_DATA *Private\r | |
139 | )\r | |
140 | {\r | |
141 | UINT32 NamespaceId;\r | |
142 | \r | |
143 | Private->ActiveNamespaceNum = 0;\r | |
144 | Private->NamespaceInfo = AllocateZeroPool (Private->ControllerData->Nn * sizeof (PEI_NVME_NAMESPACE_INFO));\r | |
145 | \r | |
146 | //\r | |
147 | // According to Nvm Express 1.1 spec Figure 82, the field 'Nn' of the identify\r | |
148 | // controller data defines the number of valid namespaces present for the\r | |
149 | // controller. Namespaces shall be allocated in order (starting with 1) and\r | |
150 | // packed sequentially.\r | |
151 | //\r | |
152 | for (NamespaceId = 1; NamespaceId <= Private->ControllerData->Nn; NamespaceId++) {\r | |
153 | //\r | |
154 | // For now, we do not care the return status. Since if a valid namespace is inactive,\r | |
155 | // error status will be returned. But we continue to enumerate other valid namespaces.\r | |
156 | //\r | |
157 | EnumerateNvmeDevNamespace (Private, NamespaceId);\r | |
158 | }\r | |
159 | if (Private->ActiveNamespaceNum == 0) {\r | |
160 | return EFI_NOT_FOUND;\r | |
161 | }\r | |
162 | \r | |
163 | return EFI_SUCCESS;\r | |
164 | }\r | |
165 | \r | |
166 | /**\r | |
167 | One notified function to cleanup the allocated resources at the end of PEI.\r | |
168 | \r | |
169 | @param[in] PeiServices Pointer to PEI Services Table.\r | |
170 | @param[in] NotifyDescriptor Pointer to the descriptor for the Notification\r | |
171 | event that caused this function to execute.\r | |
172 | @param[in] Ppi Pointer to the PPI data associated with this function.\r | |
173 | \r | |
174 | @retval EFI_SUCCESS The function completes successfully\r | |
175 | \r | |
176 | **/\r | |
177 | EFI_STATUS\r | |
178 | EFIAPI\r | |
179 | NvmePeimEndOfPei (\r | |
180 | IN EFI_PEI_SERVICES **PeiServices,\r | |
181 | IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,\r | |
182 | IN VOID *Ppi\r | |
183 | )\r | |
184 | {\r | |
185 | PEI_NVME_CONTROLLER_PRIVATE_DATA *Private;\r | |
186 | \r | |
187 | Private = GET_NVME_PEIM_HC_PRIVATE_DATA_FROM_THIS_NOTIFY (NotifyDescriptor);\r | |
188 | NvmeDisableController (Private);\r | |
189 | NvmeFreeControllerResource (Private);\r | |
190 | \r | |
191 | return EFI_SUCCESS;\r | |
192 | }\r | |
193 | \r | |
194 | /**\r | |
195 | Entry point of the PEIM.\r | |
196 | \r | |
197 | @param[in] FileHandle Handle of the file being invoked.\r | |
198 | @param[in] PeiServices Describes the list of possible PEI Services.\r | |
199 | \r | |
200 | @retval EFI_SUCCESS PPI successfully installed.\r | |
201 | \r | |
202 | **/\r | |
203 | EFI_STATUS\r | |
204 | EFIAPI\r | |
205 | NvmExpressPeimEntry (\r | |
206 | IN EFI_PEI_FILE_HANDLE FileHandle,\r | |
207 | IN CONST EFI_PEI_SERVICES **PeiServices\r | |
208 | )\r | |
209 | {\r | |
210 | EFI_STATUS Status;\r | |
211 | EDKII_NVM_EXPRESS_HOST_CONTROLLER_PPI *NvmeHcPpi;\r | |
212 | UINT8 Controller;\r | |
213 | UINTN MmioBase;\r | |
214 | PEI_NVME_CONTROLLER_PRIVATE_DATA *Private;\r | |
215 | EFI_PHYSICAL_ADDRESS DeviceAddress;\r | |
216 | \r | |
217 | //\r | |
218 | // Shadow this PEIM to run from memory\r | |
219 | //\r | |
220 | if (!EFI_ERROR (PeiServicesRegisterForShadow (FileHandle))) {\r | |
221 | return EFI_SUCCESS;\r | |
222 | }\r | |
223 | \r | |
224 | //\r | |
225 | // Locate the NVME host controller PPI\r | |
226 | //\r | |
227 | Status = PeiServicesLocatePpi (\r | |
228 | &gEdkiiPeiNvmExpressHostControllerPpiGuid,\r | |
229 | 0,\r | |
230 | NULL,\r | |
231 | (VOID **) &NvmeHcPpi\r | |
232 | );\r | |
233 | if (EFI_ERROR (Status)) {\r | |
234 | DEBUG ((DEBUG_ERROR, "%a: Fail to locate NvmeHostControllerPpi.\n", __FUNCTION__));\r | |
235 | return EFI_UNSUPPORTED;\r | |
236 | }\r | |
237 | \r | |
238 | IoMmuInit ();\r | |
239 | \r | |
240 | Controller = 0;\r | |
241 | MmioBase = 0;\r | |
242 | while (TRUE) {\r | |
243 | Status = NvmeHcPpi->GetNvmeHcMmioBar (\r | |
244 | NvmeHcPpi,\r | |
245 | Controller,\r | |
246 | &MmioBase\r | |
247 | );\r | |
248 | //\r | |
249 | // When status is error, meant no controller is found\r | |
250 | //\r | |
251 | if (EFI_ERROR (Status)) {\r | |
252 | break;\r | |
253 | }\r | |
254 | \r | |
255 | //\r | |
256 | // Memory allocation for controller private data\r | |
257 | //\r | |
258 | Private = AllocateZeroPool (sizeof (PEI_NVME_CONTROLLER_PRIVATE_DATA));\r | |
259 | if (Private == NULL) {\r | |
260 | DEBUG ((\r | |
261 | DEBUG_ERROR,\r | |
262 | "%a: Fail to allocate private data for Controller %d.\n",\r | |
263 | __FUNCTION__,\r | |
264 | Controller\r | |
265 | ));\r | |
266 | return EFI_OUT_OF_RESOURCES;\r | |
267 | }\r | |
268 | \r | |
269 | //\r | |
270 | // Memory allocation for transfer-related data\r | |
271 | //\r | |
272 | Status = IoMmuAllocateBuffer (\r | |
273 | NVME_MEM_MAX_PAGES,\r | |
274 | &Private->Buffer,\r | |
275 | &DeviceAddress,\r | |
276 | &Private->BufferMapping\r | |
277 | );\r | |
278 | if (EFI_ERROR (Status)) {\r | |
279 | DEBUG ((\r | |
280 | DEBUG_ERROR,\r | |
281 | "%a: Fail to allocate DMA buffers for Controller %d.\n",\r | |
282 | __FUNCTION__,\r | |
283 | Controller\r | |
284 | ));\r | |
285 | NvmeFreeControllerResource (Private);\r | |
286 | return Status;\r | |
287 | }\r | |
288 | ASSERT (DeviceAddress == ((EFI_PHYSICAL_ADDRESS) (UINTN) Private->Buffer));\r | |
289 | DEBUG ((DEBUG_INFO, "%a: DMA buffer base at 0x%x\n", __FUNCTION__, Private->Buffer));\r | |
290 | \r | |
291 | //\r | |
292 | // Initialize controller private data\r | |
293 | //\r | |
294 | Private->Signature = NVME_PEI_CONTROLLER_PRIVATE_DATA_SIGNATURE;\r | |
295 | Private->MmioBase = MmioBase;\r | |
296 | Private->BlkIoPpi.GetNumberOfBlockDevices = NvmeBlockIoPeimGetDeviceNo;\r | |
297 | Private->BlkIoPpi.GetBlockDeviceMediaInfo = NvmeBlockIoPeimGetMediaInfo;\r | |
298 | Private->BlkIoPpi.ReadBlocks = NvmeBlockIoPeimReadBlocks;\r | |
299 | Private->BlkIo2Ppi.Revision = EFI_PEI_RECOVERY_BLOCK_IO2_PPI_REVISION;\r | |
300 | Private->BlkIo2Ppi.GetNumberOfBlockDevices = NvmeBlockIoPeimGetDeviceNo2;\r | |
301 | Private->BlkIo2Ppi.GetBlockDeviceMediaInfo = NvmeBlockIoPeimGetMediaInfo2;\r | |
302 | Private->BlkIo2Ppi.ReadBlocks = NvmeBlockIoPeimReadBlocks2;\r | |
303 | CopyMem (&Private->BlkIoPpiList, &mNvmeBlkIoPpiListTemplate, sizeof (EFI_PEI_PPI_DESCRIPTOR));\r | |
304 | CopyMem (&Private->BlkIo2PpiList, &mNvmeBlkIo2PpiListTemplate, sizeof (EFI_PEI_PPI_DESCRIPTOR));\r | |
305 | CopyMem (&Private->EndOfPeiNotifyList, &mNvmeEndOfPeiNotifyListTemplate, sizeof (EFI_PEI_NOTIFY_DESCRIPTOR));\r | |
306 | Private->BlkIoPpiList.Ppi = &Private->BlkIoPpi;\r | |
307 | Private->BlkIo2PpiList.Ppi = &Private->BlkIo2Ppi;\r | |
308 | \r | |
309 | //\r | |
310 | // Initialize the NVME controller\r | |
311 | //\r | |
312 | Status = NvmeControllerInit (Private);\r | |
313 | if (EFI_ERROR (Status)) {\r | |
314 | DEBUG ((\r | |
315 | DEBUG_ERROR,\r | |
316 | "%a: Controller initialization fail for Controller %d with Status - %r.\n",\r | |
317 | __FUNCTION__,\r | |
318 | Controller,\r | |
319 | Status\r | |
320 | ));\r | |
321 | NvmeFreeControllerResource (Private);\r | |
322 | Controller++;\r | |
323 | continue;\r | |
324 | }\r | |
325 | \r | |
326 | //\r | |
327 | // Enumerate the NVME namespaces on the controller\r | |
328 | //\r | |
329 | Status = NvmeDiscoverNamespaces (Private);\r | |
330 | if (EFI_ERROR (Status)) {\r | |
331 | //\r | |
332 | // No active namespace was found on the controller\r | |
333 | //\r | |
334 | DEBUG ((\r | |
335 | DEBUG_ERROR,\r | |
336 | "%a: Namespaces discovery fail for Controller %d with Status - %r.\n",\r | |
337 | __FUNCTION__,\r | |
338 | Controller,\r | |
339 | Status\r | |
340 | ));\r | |
341 | NvmeFreeControllerResource (Private);\r | |
342 | Controller++;\r | |
343 | continue;\r | |
344 | }\r | |
345 | \r | |
346 | PeiServicesInstallPpi (&Private->BlkIoPpiList);\r | |
347 | PeiServicesNotifyPpi (&Private->EndOfPeiNotifyList);\r | |
348 | DEBUG ((\r | |
349 | DEBUG_INFO,\r | |
350 | "%a: BlockIO PPI has been installed on Controller %d.\n",\r | |
351 | __FUNCTION__,\r | |
352 | Controller\r | |
353 | ));\r | |
354 | Controller++;\r | |
355 | }\r | |
356 | \r | |
357 | return EFI_SUCCESS;\r | |
358 | }\r |