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eb290d02 FT |
1 | /** @file\r |
2 | NvmExpressDxe driver is used to manage non-volatile memory subsystem which follows\r | |
3 | NVM Express specification.\r | |
4 | \r | |
63d8431a | 5 | Copyright (c) 2013 - 2019, Intel Corporation. All rights reserved.<BR>\r |
9d510e61 | 6 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
eb290d02 FT |
7 | \r |
8 | **/\r | |
9 | \r | |
10 | #include "NvmExpress.h"\r | |
11 | \r | |
7111e46f RN |
12 | #define NVME_SHUTDOWN_PROCESS_TIMEOUT 45\r |
13 | \r | |
14 | //\r | |
15 | // The number of NVME controllers managed by this driver, used by\r | |
16 | // NvmeRegisterShutdownNotification() and NvmeUnregisterShutdownNotification().\r | |
17 | //\r | |
18 | UINTN mNvmeControllerNumber = 0;\r | |
19 | \r | |
eb290d02 FT |
20 | /**\r |
21 | Read Nvm Express controller capability register.\r | |
22 | \r | |
23 | @param Private The pointer to the NVME_CONTROLLER_PRIVATE_DATA data structure.\r | |
24 | @param Cap The buffer used to store capability register content.\r | |
25 | \r | |
26 | @return EFI_SUCCESS Successfully read the controller capability register content.\r | |
27 | @return EFI_DEVICE_ERROR Fail to read the controller capability register.\r | |
28 | \r | |
29 | **/\r | |
30 | EFI_STATUS\r | |
31 | ReadNvmeControllerCapabilities (\r | |
32 | IN NVME_CONTROLLER_PRIVATE_DATA *Private,\r | |
33 | IN NVME_CAP *Cap\r | |
34 | )\r | |
35 | {\r | |
36 | EFI_PCI_IO_PROTOCOL *PciIo;\r | |
37 | EFI_STATUS Status;\r | |
7b8883c6 | 38 | UINT64 Data;\r |
eb290d02 FT |
39 | \r |
40 | PciIo = Private->PciIo;\r | |
41 | Status = PciIo->Mem.Read (\r | |
42 | PciIo,\r | |
7b8883c6 | 43 | EfiPciIoWidthUint32,\r |
eb290d02 FT |
44 | NVME_BAR,\r |
45 | NVME_CAP_OFFSET,\r | |
7b8883c6 FT |
46 | 2,\r |
47 | &Data\r | |
eb290d02 FT |
48 | );\r |
49 | \r | |
50 | if (EFI_ERROR(Status)) {\r | |
51 | return Status;\r | |
52 | }\r | |
53 | \r | |
7b8883c6 | 54 | WriteUnaligned64 ((UINT64*)Cap, Data);\r |
eb290d02 FT |
55 | return EFI_SUCCESS;\r |
56 | }\r | |
57 | \r | |
58 | /**\r | |
59 | Read Nvm Express controller configuration register.\r | |
60 | \r | |
61 | @param Private The pointer to the NVME_CONTROLLER_PRIVATE_DATA data structure.\r | |
62 | @param Cc The buffer used to store configuration register content.\r | |
63 | \r | |
64 | @return EFI_SUCCESS Successfully read the controller configuration register content.\r | |
65 | @return EFI_DEVICE_ERROR Fail to read the controller configuration register.\r | |
66 | \r | |
67 | **/\r | |
68 | EFI_STATUS\r | |
69 | ReadNvmeControllerConfiguration (\r | |
70 | IN NVME_CONTROLLER_PRIVATE_DATA *Private,\r | |
71 | IN NVME_CC *Cc\r | |
72 | )\r | |
73 | {\r | |
74 | EFI_PCI_IO_PROTOCOL *PciIo;\r | |
75 | EFI_STATUS Status;\r | |
7b8883c6 | 76 | UINT32 Data;\r |
eb290d02 FT |
77 | \r |
78 | PciIo = Private->PciIo;\r | |
79 | Status = PciIo->Mem.Read (\r | |
80 | PciIo,\r | |
81 | EfiPciIoWidthUint32,\r | |
82 | NVME_BAR,\r | |
83 | NVME_CC_OFFSET,\r | |
84 | 1,\r | |
7b8883c6 | 85 | &Data\r |
eb290d02 FT |
86 | );\r |
87 | \r | |
88 | if (EFI_ERROR(Status)) {\r | |
89 | return Status;\r | |
90 | }\r | |
91 | \r | |
7b8883c6 | 92 | WriteUnaligned32 ((UINT32*)Cc, Data);\r |
eb290d02 FT |
93 | return EFI_SUCCESS;\r |
94 | }\r | |
95 | \r | |
96 | /**\r | |
97 | Write Nvm Express controller configuration register.\r | |
98 | \r | |
99 | @param Private The pointer to the NVME_CONTROLLER_PRIVATE_DATA data structure.\r | |
100 | @param Cc The buffer used to store the content to be written into configuration register.\r | |
101 | \r | |
102 | @return EFI_SUCCESS Successfully write data into the controller configuration register.\r | |
103 | @return EFI_DEVICE_ERROR Fail to write data into the controller configuration register.\r | |
104 | \r | |
105 | **/\r | |
106 | EFI_STATUS\r | |
107 | WriteNvmeControllerConfiguration (\r | |
108 | IN NVME_CONTROLLER_PRIVATE_DATA *Private,\r | |
109 | IN NVME_CC *Cc\r | |
110 | )\r | |
111 | {\r | |
112 | EFI_PCI_IO_PROTOCOL *PciIo;\r | |
113 | EFI_STATUS Status;\r | |
7b8883c6 | 114 | UINT32 Data;\r |
eb290d02 FT |
115 | \r |
116 | PciIo = Private->PciIo;\r | |
7b8883c6 | 117 | Data = ReadUnaligned32 ((UINT32*)Cc);\r |
eb290d02 FT |
118 | Status = PciIo->Mem.Write (\r |
119 | PciIo,\r | |
120 | EfiPciIoWidthUint32,\r | |
121 | NVME_BAR,\r | |
122 | NVME_CC_OFFSET,\r | |
123 | 1,\r | |
7b8883c6 | 124 | &Data\r |
eb290d02 FT |
125 | );\r |
126 | \r | |
127 | if (EFI_ERROR(Status)) {\r | |
128 | return Status;\r | |
129 | }\r | |
130 | \r | |
131 | DEBUG ((EFI_D_INFO, "Cc.En: %d\n", Cc->En));\r | |
132 | DEBUG ((EFI_D_INFO, "Cc.Css: %d\n", Cc->Css));\r | |
133 | DEBUG ((EFI_D_INFO, "Cc.Mps: %d\n", Cc->Mps));\r | |
134 | DEBUG ((EFI_D_INFO, "Cc.Ams: %d\n", Cc->Ams));\r | |
135 | DEBUG ((EFI_D_INFO, "Cc.Shn: %d\n", Cc->Shn));\r | |
136 | DEBUG ((EFI_D_INFO, "Cc.Iosqes: %d\n", Cc->Iosqes));\r | |
137 | DEBUG ((EFI_D_INFO, "Cc.Iocqes: %d\n", Cc->Iocqes));\r | |
138 | \r | |
139 | return EFI_SUCCESS;\r | |
140 | }\r | |
141 | \r | |
142 | /**\r | |
143 | Read Nvm Express controller status register.\r | |
144 | \r | |
145 | @param Private The pointer to the NVME_CONTROLLER_PRIVATE_DATA data structure.\r | |
146 | @param Csts The buffer used to store status register content.\r | |
147 | \r | |
148 | @return EFI_SUCCESS Successfully read the controller status register content.\r | |
149 | @return EFI_DEVICE_ERROR Fail to read the controller status register.\r | |
150 | \r | |
151 | **/\r | |
152 | EFI_STATUS\r | |
153 | ReadNvmeControllerStatus (\r | |
154 | IN NVME_CONTROLLER_PRIVATE_DATA *Private,\r | |
155 | IN NVME_CSTS *Csts\r | |
156 | )\r | |
157 | {\r | |
158 | EFI_PCI_IO_PROTOCOL *PciIo;\r | |
159 | EFI_STATUS Status;\r | |
7b8883c6 | 160 | UINT32 Data;\r |
eb290d02 FT |
161 | \r |
162 | PciIo = Private->PciIo;\r | |
163 | Status = PciIo->Mem.Read (\r | |
164 | PciIo,\r | |
165 | EfiPciIoWidthUint32,\r | |
166 | NVME_BAR,\r | |
167 | NVME_CSTS_OFFSET,\r | |
168 | 1,\r | |
7b8883c6 | 169 | &Data\r |
eb290d02 FT |
170 | );\r |
171 | \r | |
172 | if (EFI_ERROR(Status)) {\r | |
173 | return Status;\r | |
174 | }\r | |
175 | \r | |
7b8883c6 | 176 | WriteUnaligned32 ((UINT32*)Csts, Data);\r |
eb290d02 FT |
177 | return EFI_SUCCESS;\r |
178 | }\r | |
179 | \r | |
eb290d02 | 180 | \r |
eb290d02 FT |
181 | \r |
182 | /**\r | |
183 | Write Nvm Express admin queue attributes register.\r | |
184 | \r | |
185 | @param Private The pointer to the NVME_CONTROLLER_PRIVATE_DATA data structure.\r | |
186 | @param Aqa The buffer used to store the content to be written into admin queue attributes register.\r | |
187 | \r | |
188 | @return EFI_SUCCESS Successfully write data into the admin queue attributes register.\r | |
189 | @return EFI_DEVICE_ERROR Fail to write data into the admin queue attributes register.\r | |
190 | \r | |
191 | **/\r | |
192 | EFI_STATUS\r | |
193 | WriteNvmeAdminQueueAttributes (\r | |
194 | IN NVME_CONTROLLER_PRIVATE_DATA *Private,\r | |
195 | IN NVME_AQA *Aqa\r | |
196 | )\r | |
197 | {\r | |
198 | EFI_PCI_IO_PROTOCOL *PciIo;\r | |
199 | EFI_STATUS Status;\r | |
7b8883c6 | 200 | UINT32 Data;\r |
eb290d02 FT |
201 | \r |
202 | PciIo = Private->PciIo;\r | |
7b8883c6 | 203 | Data = ReadUnaligned32 ((UINT32*)Aqa);\r |
eb290d02 FT |
204 | Status = PciIo->Mem.Write (\r |
205 | PciIo,\r | |
206 | EfiPciIoWidthUint32,\r | |
207 | NVME_BAR,\r | |
208 | NVME_AQA_OFFSET,\r | |
209 | 1,\r | |
7b8883c6 | 210 | &Data\r |
eb290d02 FT |
211 | );\r |
212 | \r | |
213 | if (EFI_ERROR(Status)) {\r | |
214 | return Status;\r | |
215 | }\r | |
216 | \r | |
217 | DEBUG ((EFI_D_INFO, "Aqa.Asqs: %d\n", Aqa->Asqs));\r | |
218 | DEBUG ((EFI_D_INFO, "Aqa.Acqs: %d\n", Aqa->Acqs));\r | |
219 | \r | |
220 | return EFI_SUCCESS;\r | |
221 | }\r | |
222 | \r | |
eb290d02 FT |
223 | \r |
224 | /**\r | |
225 | Write Nvm Express admin submission queue base address register.\r | |
226 | \r | |
227 | @param Private The pointer to the NVME_CONTROLLER_PRIVATE_DATA data structure.\r | |
228 | @param Asq The buffer used to store the content to be written into admin submission queue base address register.\r | |
229 | \r | |
230 | @return EFI_SUCCESS Successfully write data into the admin submission queue base address register.\r | |
231 | @return EFI_DEVICE_ERROR Fail to write data into the admin submission queue base address register.\r | |
232 | \r | |
233 | **/\r | |
234 | EFI_STATUS\r | |
235 | WriteNvmeAdminSubmissionQueueBaseAddress (\r | |
236 | IN NVME_CONTROLLER_PRIVATE_DATA *Private,\r | |
237 | IN NVME_ASQ *Asq\r | |
238 | )\r | |
239 | {\r | |
240 | EFI_PCI_IO_PROTOCOL *PciIo;\r | |
241 | EFI_STATUS Status;\r | |
7b8883c6 | 242 | UINT64 Data;\r |
eb290d02 FT |
243 | \r |
244 | PciIo = Private->PciIo;\r | |
7b8883c6 FT |
245 | Data = ReadUnaligned64 ((UINT64*)Asq);\r |
246 | \r | |
eb290d02 FT |
247 | Status = PciIo->Mem.Write (\r |
248 | PciIo,\r | |
7b8883c6 | 249 | EfiPciIoWidthUint32,\r |
eb290d02 FT |
250 | NVME_BAR,\r |
251 | NVME_ASQ_OFFSET,\r | |
7b8883c6 FT |
252 | 2,\r |
253 | &Data\r | |
eb290d02 FT |
254 | );\r |
255 | \r | |
256 | if (EFI_ERROR(Status)) {\r | |
257 | return Status;\r | |
258 | }\r | |
259 | \r | |
c5921812 | 260 | DEBUG ((EFI_D_INFO, "Asq: %lx\n", *Asq));\r |
eb290d02 FT |
261 | \r |
262 | return EFI_SUCCESS;\r | |
263 | }\r | |
264 | \r | |
eb290d02 | 265 | \r |
eb290d02 FT |
266 | \r |
267 | /**\r | |
268 | Write Nvm Express admin completion queue base address register.\r | |
269 | \r | |
270 | @param Private The pointer to the NVME_CONTROLLER_PRIVATE_DATA data structure.\r | |
271 | @param Acq The buffer used to store the content to be written into admin completion queue base address register.\r | |
272 | \r | |
273 | @return EFI_SUCCESS Successfully write data into the admin completion queue base address register.\r | |
274 | @return EFI_DEVICE_ERROR Fail to write data into the admin completion queue base address register.\r | |
275 | \r | |
276 | **/\r | |
277 | EFI_STATUS\r | |
278 | WriteNvmeAdminCompletionQueueBaseAddress (\r | |
279 | IN NVME_CONTROLLER_PRIVATE_DATA *Private,\r | |
280 | IN NVME_ACQ *Acq\r | |
281 | )\r | |
282 | {\r | |
283 | EFI_PCI_IO_PROTOCOL *PciIo;\r | |
284 | EFI_STATUS Status;\r | |
7b8883c6 | 285 | UINT64 Data;\r |
eb290d02 FT |
286 | \r |
287 | PciIo = Private->PciIo;\r | |
7b8883c6 FT |
288 | Data = ReadUnaligned64 ((UINT64*)Acq);\r |
289 | \r | |
eb290d02 FT |
290 | Status = PciIo->Mem.Write (\r |
291 | PciIo,\r | |
7b8883c6 | 292 | EfiPciIoWidthUint32,\r |
eb290d02 FT |
293 | NVME_BAR,\r |
294 | NVME_ACQ_OFFSET,\r | |
7b8883c6 FT |
295 | 2,\r |
296 | &Data\r | |
eb290d02 FT |
297 | );\r |
298 | \r | |
299 | if (EFI_ERROR(Status)) {\r | |
300 | return Status;\r | |
301 | }\r | |
302 | \r | |
c5921812 | 303 | DEBUG ((EFI_D_INFO, "Acq: %lxh\n", *Acq));\r |
eb290d02 FT |
304 | \r |
305 | return EFI_SUCCESS;\r | |
306 | }\r | |
307 | \r | |
308 | /**\r | |
309 | Disable the Nvm Express controller.\r | |
310 | \r | |
311 | @param Private The pointer to the NVME_CONTROLLER_PRIVATE_DATA data structure.\r | |
312 | \r | |
313 | @return EFI_SUCCESS Successfully disable the controller.\r | |
314 | @return EFI_DEVICE_ERROR Fail to disable the controller.\r | |
315 | \r | |
316 | **/\r | |
317 | EFI_STATUS\r | |
318 | NvmeDisableController (\r | |
319 | IN NVME_CONTROLLER_PRIVATE_DATA *Private\r | |
320 | )\r | |
321 | {\r | |
322 | NVME_CC Cc;\r | |
323 | NVME_CSTS Csts;\r | |
324 | EFI_STATUS Status;\r | |
4ab4497c TF |
325 | UINT32 Index;\r |
326 | UINT8 Timeout;\r | |
eb290d02 FT |
327 | \r |
328 | //\r | |
329 | // Read Controller Configuration Register.\r | |
330 | //\r | |
331 | Status = ReadNvmeControllerConfiguration (Private, &Cc);\r | |
332 | if (EFI_ERROR(Status)) {\r | |
333 | return Status;\r | |
334 | }\r | |
335 | \r | |
336 | Cc.En = 0;\r | |
337 | \r | |
338 | //\r | |
339 | // Disable the controller.\r | |
340 | //\r | |
341 | Status = WriteNvmeControllerConfiguration (Private, &Cc);\r | |
342 | \r | |
343 | if (EFI_ERROR(Status)) {\r | |
344 | return Status;\r | |
345 | }\r | |
346 | \r | |
eb290d02 | 347 | //\r |
4ab4497c TF |
348 | // Cap.To specifies max delay time in 500ms increments for Csts.Rdy to transition from 1 to 0 after\r |
349 | // Cc.Enable transition from 1 to 0. Loop produces a 1 millisecond delay per itteration, up to 500 * Cap.To.\r | |
eb290d02 | 350 | //\r |
4ab4497c TF |
351 | if (Private->Cap.To == 0) {\r |
352 | Timeout = 1;\r | |
353 | } else {\r | |
354 | Timeout = Private->Cap.To;\r | |
355 | }\r | |
eb290d02 | 356 | \r |
4ab4497c TF |
357 | for(Index = (Timeout * 500); Index != 0; --Index) {\r |
358 | gBS->Stall(1000);\r | |
359 | \r | |
360 | //\r | |
361 | // Check if the controller is initialized\r | |
362 | //\r | |
363 | Status = ReadNvmeControllerStatus (Private, &Csts);\r | |
364 | \r | |
365 | if (EFI_ERROR(Status)) {\r | |
366 | return Status;\r | |
367 | }\r | |
368 | \r | |
369 | if (Csts.Rdy == 0) {\r | |
370 | break;\r | |
371 | }\r | |
eb290d02 FT |
372 | }\r |
373 | \r | |
4ab4497c TF |
374 | if (Index == 0) {\r |
375 | Status = EFI_DEVICE_ERROR;\r | |
63d8431a SB |
376 | REPORT_STATUS_CODE (\r |
377 | (EFI_ERROR_CODE | EFI_ERROR_MAJOR),\r | |
378 | (EFI_IO_BUS_SCSI | EFI_IOB_EC_INTERFACE_ERROR)\r | |
379 | );\r | |
eb290d02 FT |
380 | }\r |
381 | \r | |
382 | DEBUG ((EFI_D_INFO, "NVMe controller is disabled with status [%r].\n", Status));\r | |
383 | return Status;\r | |
384 | }\r | |
385 | \r | |
386 | /**\r | |
387 | Enable the Nvm Express controller.\r | |
388 | \r | |
389 | @param Private The pointer to the NVME_CONTROLLER_PRIVATE_DATA data structure.\r | |
390 | \r | |
391 | @return EFI_SUCCESS Successfully enable the controller.\r | |
392 | @return EFI_DEVICE_ERROR Fail to enable the controller.\r | |
393 | @return EFI_TIMEOUT Fail to enable the controller in given time slot.\r | |
394 | \r | |
395 | **/\r | |
396 | EFI_STATUS\r | |
397 | NvmeEnableController (\r | |
398 | IN NVME_CONTROLLER_PRIVATE_DATA *Private\r | |
399 | )\r | |
400 | {\r | |
401 | NVME_CC Cc;\r | |
402 | NVME_CSTS Csts;\r | |
403 | EFI_STATUS Status;\r | |
404 | UINT32 Index;\r | |
405 | UINT8 Timeout;\r | |
406 | \r | |
407 | //\r | |
d6c55989 FT |
408 | // Enable the controller.\r |
409 | // CC.AMS, CC.MPS and CC.CSS are all set to 0.\r | |
eb290d02 FT |
410 | //\r |
411 | ZeroMem (&Cc, sizeof (NVME_CC));\r | |
166801d2 FT |
412 | Cc.En = 1;\r |
413 | Cc.Iosqes = 6;\r | |
414 | Cc.Iocqes = 4;\r | |
eb290d02 | 415 | \r |
166801d2 | 416 | Status = WriteNvmeControllerConfiguration (Private, &Cc);\r |
eb290d02 FT |
417 | if (EFI_ERROR(Status)) {\r |
418 | return Status;\r | |
419 | }\r | |
420 | \r | |
421 | //\r | |
422 | // Cap.To specifies max delay time in 500ms increments for Csts.Rdy to set after\r | |
423 | // Cc.Enable. Loop produces a 1 millisecond delay per itteration, up to 500 * Cap.To.\r | |
424 | //\r | |
425 | if (Private->Cap.To == 0) {\r | |
426 | Timeout = 1;\r | |
427 | } else {\r | |
428 | Timeout = Private->Cap.To;\r | |
429 | }\r | |
430 | \r | |
431 | for(Index = (Timeout * 500); Index != 0; --Index) {\r | |
432 | gBS->Stall(1000);\r | |
433 | \r | |
434 | //\r | |
435 | // Check if the controller is initialized\r | |
436 | //\r | |
437 | Status = ReadNvmeControllerStatus (Private, &Csts);\r | |
438 | \r | |
439 | if (EFI_ERROR(Status)) {\r | |
440 | return Status;\r | |
441 | }\r | |
442 | \r | |
443 | if (Csts.Rdy) {\r | |
444 | break;\r | |
445 | }\r | |
446 | }\r | |
447 | \r | |
448 | if (Index == 0) {\r | |
449 | Status = EFI_TIMEOUT;\r | |
63d8431a SB |
450 | REPORT_STATUS_CODE (\r |
451 | (EFI_ERROR_CODE | EFI_ERROR_MAJOR),\r | |
452 | (EFI_IO_BUS_SCSI | EFI_IOB_EC_INTERFACE_ERROR)\r | |
453 | );\r | |
eb290d02 FT |
454 | }\r |
455 | \r | |
456 | DEBUG ((EFI_D_INFO, "NVMe controller is enabled with status [%r].\n", Status));\r | |
457 | return Status;\r | |
458 | }\r | |
459 | \r | |
460 | /**\r | |
461 | Get identify controller data.\r | |
462 | \r | |
463 | @param Private The pointer to the NVME_CONTROLLER_PRIVATE_DATA data structure.\r | |
464 | @param Buffer The buffer used to store the identify controller data.\r | |
465 | \r | |
466 | @return EFI_SUCCESS Successfully get the identify controller data.\r | |
467 | @return EFI_DEVICE_ERROR Fail to get the identify controller data.\r | |
468 | \r | |
469 | **/\r | |
470 | EFI_STATUS\r | |
471 | NvmeIdentifyController (\r | |
472 | IN NVME_CONTROLLER_PRIVATE_DATA *Private,\r | |
473 | IN VOID *Buffer\r | |
474 | )\r | |
475 | {\r | |
d6c55989 FT |
476 | EFI_NVM_EXPRESS_PASS_THRU_COMMAND_PACKET CommandPacket;\r |
477 | EFI_NVM_EXPRESS_COMMAND Command;\r | |
478 | EFI_NVM_EXPRESS_COMPLETION Completion;\r | |
eb290d02 FT |
479 | EFI_STATUS Status;\r |
480 | \r | |
d6c55989 FT |
481 | ZeroMem (&CommandPacket, sizeof(EFI_NVM_EXPRESS_PASS_THRU_COMMAND_PACKET));\r |
482 | ZeroMem (&Command, sizeof(EFI_NVM_EXPRESS_COMMAND));\r | |
483 | ZeroMem (&Completion, sizeof(EFI_NVM_EXPRESS_COMPLETION));\r | |
eb290d02 | 484 | \r |
754b489b | 485 | Command.Cdw0.Opcode = NVME_ADMIN_IDENTIFY_CMD;\r |
eb290d02 FT |
486 | //\r |
487 | // According to Nvm Express 1.1 spec Figure 38, When not used, the field shall be cleared to 0h.\r | |
488 | // For the Identify command, the Namespace Identifier is only used for the Namespace data structure.\r | |
489 | //\r | |
490 | Command.Nsid = 0;\r | |
491 | \r | |
492 | CommandPacket.NvmeCmd = &Command;\r | |
d6c55989 | 493 | CommandPacket.NvmeCompletion = &Completion;\r |
eb290d02 FT |
494 | CommandPacket.TransferBuffer = Buffer;\r |
495 | CommandPacket.TransferLength = sizeof (NVME_ADMIN_CONTROLLER_DATA);\r | |
496 | CommandPacket.CommandTimeout = NVME_GENERIC_TIMEOUT;\r | |
d6c55989 | 497 | CommandPacket.QueueType = NVME_ADMIN_QUEUE;\r |
eb290d02 FT |
498 | //\r |
499 | // Set bit 0 (Cns bit) to 1 to identify a controller\r | |
500 | //\r | |
501 | Command.Cdw10 = 1;\r | |
502 | Command.Flags = CDW10_VALID;\r | |
503 | \r | |
504 | Status = Private->Passthru.PassThru (\r | |
505 | &Private->Passthru,\r | |
506 | NVME_CONTROLLER_ID,\r | |
eb290d02 FT |
507 | &CommandPacket,\r |
508 | NULL\r | |
509 | );\r | |
510 | \r | |
511 | return Status;\r | |
512 | }\r | |
513 | \r | |
514 | /**\r | |
515 | Get specified identify namespace data.\r | |
516 | \r | |
517 | @param Private The pointer to the NVME_CONTROLLER_PRIVATE_DATA data structure.\r | |
518 | @param NamespaceId The specified namespace identifier.\r | |
519 | @param Buffer The buffer used to store the identify namespace data.\r | |
520 | \r | |
521 | @return EFI_SUCCESS Successfully get the identify namespace data.\r | |
522 | @return EFI_DEVICE_ERROR Fail to get the identify namespace data.\r | |
523 | \r | |
524 | **/\r | |
525 | EFI_STATUS\r | |
526 | NvmeIdentifyNamespace (\r | |
527 | IN NVME_CONTROLLER_PRIVATE_DATA *Private,\r | |
528 | IN UINT32 NamespaceId,\r | |
529 | IN VOID *Buffer\r | |
530 | )\r | |
531 | {\r | |
d6c55989 FT |
532 | EFI_NVM_EXPRESS_PASS_THRU_COMMAND_PACKET CommandPacket;\r |
533 | EFI_NVM_EXPRESS_COMMAND Command;\r | |
534 | EFI_NVM_EXPRESS_COMPLETION Completion;\r | |
eb290d02 FT |
535 | EFI_STATUS Status;\r |
536 | \r | |
d6c55989 FT |
537 | ZeroMem (&CommandPacket, sizeof(EFI_NVM_EXPRESS_PASS_THRU_COMMAND_PACKET));\r |
538 | ZeroMem (&Command, sizeof(EFI_NVM_EXPRESS_COMMAND));\r | |
539 | ZeroMem (&Completion, sizeof(EFI_NVM_EXPRESS_COMPLETION));\r | |
eb290d02 | 540 | \r |
d6c55989 FT |
541 | CommandPacket.NvmeCmd = &Command;\r |
542 | CommandPacket.NvmeCompletion = &Completion;\r | |
eb290d02 | 543 | \r |
754b489b | 544 | Command.Cdw0.Opcode = NVME_ADMIN_IDENTIFY_CMD;\r |
eb290d02 FT |
545 | Command.Nsid = NamespaceId;\r |
546 | CommandPacket.TransferBuffer = Buffer;\r | |
547 | CommandPacket.TransferLength = sizeof (NVME_ADMIN_NAMESPACE_DATA);\r | |
548 | CommandPacket.CommandTimeout = NVME_GENERIC_TIMEOUT;\r | |
d6c55989 | 549 | CommandPacket.QueueType = NVME_ADMIN_QUEUE;\r |
eb290d02 FT |
550 | //\r |
551 | // Set bit 0 (Cns bit) to 1 to identify a namespace\r | |
552 | //\r | |
553 | CommandPacket.NvmeCmd->Cdw10 = 0;\r | |
554 | CommandPacket.NvmeCmd->Flags = CDW10_VALID;\r | |
555 | \r | |
556 | Status = Private->Passthru.PassThru (\r | |
557 | &Private->Passthru,\r | |
558 | NamespaceId,\r | |
eb290d02 FT |
559 | &CommandPacket,\r |
560 | NULL\r | |
561 | );\r | |
562 | \r | |
563 | return Status;\r | |
564 | }\r | |
565 | \r | |
566 | /**\r | |
567 | Create io completion queue.\r | |
568 | \r | |
569 | @param Private The pointer to the NVME_CONTROLLER_PRIVATE_DATA data structure.\r | |
570 | \r | |
571 | @return EFI_SUCCESS Successfully create io completion queue.\r | |
572 | @return EFI_DEVICE_ERROR Fail to create io completion queue.\r | |
573 | \r | |
574 | **/\r | |
575 | EFI_STATUS\r | |
576 | NvmeCreateIoCompletionQueue (\r | |
577 | IN NVME_CONTROLLER_PRIVATE_DATA *Private\r | |
578 | )\r | |
579 | {\r | |
d6c55989 FT |
580 | EFI_NVM_EXPRESS_PASS_THRU_COMMAND_PACKET CommandPacket;\r |
581 | EFI_NVM_EXPRESS_COMMAND Command;\r | |
582 | EFI_NVM_EXPRESS_COMPLETION Completion;\r | |
eb290d02 FT |
583 | EFI_STATUS Status;\r |
584 | NVME_ADMIN_CRIOCQ CrIoCq;\r | |
758ea946 | 585 | UINT32 Index;\r |
05bf4747 | 586 | UINT16 QueueSize;\r |
758ea946 | 587 | \r |
6b571c4d | 588 | Status = EFI_SUCCESS;\r |
8411c9d5 | 589 | Private->CreateIoQueue = TRUE;\r |
6b571c4d | 590 | \r |
758ea946 HW |
591 | for (Index = 1; Index < NVME_MAX_QUEUES; Index++) {\r |
592 | ZeroMem (&CommandPacket, sizeof(EFI_NVM_EXPRESS_PASS_THRU_COMMAND_PACKET));\r | |
593 | ZeroMem (&Command, sizeof(EFI_NVM_EXPRESS_COMMAND));\r | |
594 | ZeroMem (&Completion, sizeof(EFI_NVM_EXPRESS_COMPLETION));\r | |
595 | ZeroMem (&CrIoCq, sizeof(NVME_ADMIN_CRIOCQ));\r | |
596 | \r | |
597 | CommandPacket.NvmeCmd = &Command;\r | |
598 | CommandPacket.NvmeCompletion = &Completion;\r | |
599 | \r | |
600 | Command.Cdw0.Opcode = NVME_ADMIN_CRIOCQ_CMD;\r | |
601 | CommandPacket.TransferBuffer = Private->CqBufferPciAddr[Index];\r | |
602 | CommandPacket.TransferLength = EFI_PAGE_SIZE;\r | |
603 | CommandPacket.CommandTimeout = NVME_GENERIC_TIMEOUT;\r | |
604 | CommandPacket.QueueType = NVME_ADMIN_QUEUE;\r | |
605 | \r | |
05bf4747 HW |
606 | if (Index == 1) {\r |
607 | QueueSize = NVME_CCQ_SIZE;\r | |
608 | } else {\r | |
609 | if (Private->Cap.Mqes > NVME_ASYNC_CCQ_SIZE) {\r | |
610 | QueueSize = NVME_ASYNC_CCQ_SIZE;\r | |
611 | } else {\r | |
612 | QueueSize = Private->Cap.Mqes;\r | |
613 | }\r | |
614 | }\r | |
615 | \r | |
758ea946 | 616 | CrIoCq.Qid = Index;\r |
05bf4747 | 617 | CrIoCq.Qsize = QueueSize;\r |
758ea946 HW |
618 | CrIoCq.Pc = 1;\r |
619 | CopyMem (&CommandPacket.NvmeCmd->Cdw10, &CrIoCq, sizeof (NVME_ADMIN_CRIOCQ));\r | |
620 | CommandPacket.NvmeCmd->Flags = CDW10_VALID | CDW11_VALID;\r | |
621 | \r | |
622 | Status = Private->Passthru.PassThru (\r | |
623 | &Private->Passthru,\r | |
624 | 0,\r | |
625 | &CommandPacket,\r | |
626 | NULL\r | |
627 | );\r | |
628 | if (EFI_ERROR (Status)) {\r | |
629 | break;\r | |
630 | }\r | |
631 | }\r | |
eb290d02 | 632 | \r |
8411c9d5 HW |
633 | Private->CreateIoQueue = FALSE;\r |
634 | \r | |
eb290d02 FT |
635 | return Status;\r |
636 | }\r | |
637 | \r | |
638 | /**\r | |
639 | Create io submission queue.\r | |
640 | \r | |
641 | @param Private The pointer to the NVME_CONTROLLER_PRIVATE_DATA data structure.\r | |
642 | \r | |
643 | @return EFI_SUCCESS Successfully create io submission queue.\r | |
644 | @return EFI_DEVICE_ERROR Fail to create io submission queue.\r | |
645 | \r | |
646 | **/\r | |
647 | EFI_STATUS\r | |
648 | NvmeCreateIoSubmissionQueue (\r | |
649 | IN NVME_CONTROLLER_PRIVATE_DATA *Private\r | |
650 | )\r | |
651 | {\r | |
d6c55989 FT |
652 | EFI_NVM_EXPRESS_PASS_THRU_COMMAND_PACKET CommandPacket;\r |
653 | EFI_NVM_EXPRESS_COMMAND Command;\r | |
654 | EFI_NVM_EXPRESS_COMPLETION Completion;\r | |
eb290d02 FT |
655 | EFI_STATUS Status;\r |
656 | NVME_ADMIN_CRIOSQ CrIoSq;\r | |
758ea946 | 657 | UINT32 Index;\r |
05bf4747 | 658 | UINT16 QueueSize;\r |
758ea946 | 659 | \r |
6b571c4d | 660 | Status = EFI_SUCCESS;\r |
8411c9d5 | 661 | Private->CreateIoQueue = TRUE;\r |
6b571c4d | 662 | \r |
758ea946 HW |
663 | for (Index = 1; Index < NVME_MAX_QUEUES; Index++) {\r |
664 | ZeroMem (&CommandPacket, sizeof(EFI_NVM_EXPRESS_PASS_THRU_COMMAND_PACKET));\r | |
665 | ZeroMem (&Command, sizeof(EFI_NVM_EXPRESS_COMMAND));\r | |
666 | ZeroMem (&Completion, sizeof(EFI_NVM_EXPRESS_COMPLETION));\r | |
667 | ZeroMem (&CrIoSq, sizeof(NVME_ADMIN_CRIOSQ));\r | |
668 | \r | |
669 | CommandPacket.NvmeCmd = &Command;\r | |
670 | CommandPacket.NvmeCompletion = &Completion;\r | |
671 | \r | |
672 | Command.Cdw0.Opcode = NVME_ADMIN_CRIOSQ_CMD;\r | |
673 | CommandPacket.TransferBuffer = Private->SqBufferPciAddr[Index];\r | |
674 | CommandPacket.TransferLength = EFI_PAGE_SIZE;\r | |
675 | CommandPacket.CommandTimeout = NVME_GENERIC_TIMEOUT;\r | |
676 | CommandPacket.QueueType = NVME_ADMIN_QUEUE;\r | |
677 | \r | |
05bf4747 HW |
678 | if (Index == 1) {\r |
679 | QueueSize = NVME_CSQ_SIZE;\r | |
680 | } else {\r | |
681 | if (Private->Cap.Mqes > NVME_ASYNC_CSQ_SIZE) {\r | |
682 | QueueSize = NVME_ASYNC_CSQ_SIZE;\r | |
683 | } else {\r | |
684 | QueueSize = Private->Cap.Mqes;\r | |
685 | }\r | |
686 | }\r | |
687 | \r | |
758ea946 | 688 | CrIoSq.Qid = Index;\r |
05bf4747 | 689 | CrIoSq.Qsize = QueueSize;\r |
758ea946 HW |
690 | CrIoSq.Pc = 1;\r |
691 | CrIoSq.Cqid = Index;\r | |
692 | CrIoSq.Qprio = 0;\r | |
693 | CopyMem (&CommandPacket.NvmeCmd->Cdw10, &CrIoSq, sizeof (NVME_ADMIN_CRIOSQ));\r | |
694 | CommandPacket.NvmeCmd->Flags = CDW10_VALID | CDW11_VALID;\r | |
695 | \r | |
696 | Status = Private->Passthru.PassThru (\r | |
697 | &Private->Passthru,\r | |
698 | 0,\r | |
699 | &CommandPacket,\r | |
700 | NULL\r | |
701 | );\r | |
702 | if (EFI_ERROR (Status)) {\r | |
703 | break;\r | |
704 | }\r | |
705 | }\r | |
eb290d02 | 706 | \r |
8411c9d5 HW |
707 | Private->CreateIoQueue = FALSE;\r |
708 | \r | |
eb290d02 FT |
709 | return Status;\r |
710 | }\r | |
711 | \r | |
712 | /**\r | |
713 | Initialize the Nvm Express controller.\r | |
714 | \r | |
715 | @param[in] Private The pointer to the NVME_CONTROLLER_PRIVATE_DATA data structure.\r | |
716 | \r | |
717 | @retval EFI_SUCCESS The NVM Express Controller is initialized successfully.\r | |
718 | @retval Others A device error occurred while initializing the controller.\r | |
719 | \r | |
720 | **/\r | |
721 | EFI_STATUS\r | |
722 | NvmeControllerInit (\r | |
723 | IN NVME_CONTROLLER_PRIVATE_DATA *Private\r | |
724 | )\r | |
725 | {\r | |
726 | EFI_STATUS Status;\r | |
727 | EFI_PCI_IO_PROTOCOL *PciIo;\r | |
728 | UINT64 Supports;\r | |
729 | NVME_AQA Aqa;\r | |
730 | NVME_ASQ Asq;\r | |
731 | NVME_ACQ Acq;\r | |
da7c7274 FT |
732 | UINT8 Sn[21];\r |
733 | UINT8 Mn[41];\r | |
eb290d02 FT |
734 | //\r |
735 | // Save original PCI attributes and enable this controller.\r | |
736 | //\r | |
737 | PciIo = Private->PciIo;\r | |
738 | Status = PciIo->Attributes (\r | |
739 | PciIo,\r | |
740 | EfiPciIoAttributeOperationGet,\r | |
741 | 0,\r | |
742 | &Private->PciAttributes\r | |
743 | );\r | |
744 | \r | |
745 | if (EFI_ERROR (Status)) {\r | |
746 | return Status;\r | |
747 | }\r | |
748 | \r | |
749 | Status = PciIo->Attributes (\r | |
750 | PciIo,\r | |
751 | EfiPciIoAttributeOperationSupported,\r | |
752 | 0,\r | |
753 | &Supports\r | |
754 | );\r | |
755 | \r | |
756 | if (!EFI_ERROR (Status)) {\r | |
6e1e5405 | 757 | Supports &= (UINT64)EFI_PCI_DEVICE_ENABLE;\r |
eb290d02 FT |
758 | Status = PciIo->Attributes (\r |
759 | PciIo,\r | |
760 | EfiPciIoAttributeOperationEnable,\r | |
761 | Supports,\r | |
762 | NULL\r | |
763 | );\r | |
764 | }\r | |
765 | \r | |
766 | if (EFI_ERROR (Status)) {\r | |
767 | DEBUG ((EFI_D_INFO, "NvmeControllerInit: failed to enable controller\n"));\r | |
768 | return Status;\r | |
769 | }\r | |
770 | \r | |
4e28ea2c AB |
771 | //\r |
772 | // Enable 64-bit DMA support in the PCI layer.\r | |
773 | //\r | |
774 | Status = PciIo->Attributes (\r | |
775 | PciIo,\r | |
776 | EfiPciIoAttributeOperationEnable,\r | |
777 | EFI_PCI_IO_ATTRIBUTE_DUAL_ADDRESS_CYCLE,\r | |
778 | NULL\r | |
779 | );\r | |
780 | if (EFI_ERROR (Status)) {\r | |
781 | DEBUG ((EFI_D_WARN, "NvmeControllerInit: failed to enable 64-bit DMA (%r)\n", Status));\r | |
782 | }\r | |
783 | \r | |
eb290d02 FT |
784 | //\r |
785 | // Read the Controller Capabilities register and verify that the NVM command set is supported\r | |
786 | //\r | |
787 | Status = ReadNvmeControllerCapabilities (Private, &Private->Cap);\r | |
788 | if (EFI_ERROR (Status)) {\r | |
789 | return Status;\r | |
790 | }\r | |
791 | \r | |
792 | if (Private->Cap.Css != 0x01) {\r | |
793 | DEBUG ((EFI_D_INFO, "NvmeControllerInit: the controller doesn't support NVMe command set\n"));\r | |
794 | return EFI_UNSUPPORTED;\r | |
795 | }\r | |
796 | \r | |
797 | //\r | |
798 | // Currently the driver only supports 4k page size.\r | |
799 | //\r | |
800 | ASSERT ((Private->Cap.Mpsmin + 12) <= EFI_PAGE_SHIFT);\r | |
801 | \r | |
802 | Private->Cid[0] = 0;\r | |
803 | Private->Cid[1] = 0;\r | |
758ea946 | 804 | Private->Cid[2] = 0;\r |
6523ae8b TF |
805 | Private->Pt[0] = 0;\r |
806 | Private->Pt[1] = 0;\r | |
758ea946 | 807 | Private->Pt[2] = 0;\r |
6523ae8b TF |
808 | Private->SqTdbl[0].Sqt = 0;\r |
809 | Private->SqTdbl[1].Sqt = 0;\r | |
758ea946 | 810 | Private->SqTdbl[2].Sqt = 0;\r |
6523ae8b TF |
811 | Private->CqHdbl[0].Cqh = 0;\r |
812 | Private->CqHdbl[1].Cqh = 0;\r | |
758ea946 HW |
813 | Private->CqHdbl[2].Cqh = 0;\r |
814 | Private->AsyncSqHead = 0;\r | |
eb290d02 FT |
815 | \r |
816 | Status = NvmeDisableController (Private);\r | |
817 | \r | |
818 | if (EFI_ERROR(Status)) {\r | |
819 | return Status;\r | |
820 | }\r | |
821 | \r | |
822 | //\r | |
823 | // set number of entries admin submission & completion queues.\r | |
824 | //\r | |
d45c8c30 FT |
825 | Aqa.Asqs = NVME_ASQ_SIZE;\r |
826 | Aqa.Rsvd1 = 0;\r | |
827 | Aqa.Acqs = NVME_ACQ_SIZE;\r | |
828 | Aqa.Rsvd2 = 0;\r | |
eb290d02 FT |
829 | \r |
830 | //\r | |
831 | // Address of admin submission queue.\r | |
832 | //\r | |
c5921812 | 833 | Asq = (UINT64)(UINTN)(Private->BufferPciAddr) & ~0xFFF;\r |
eb290d02 FT |
834 | \r |
835 | //\r | |
836 | // Address of admin completion queue.\r | |
837 | //\r | |
c5921812 | 838 | Acq = (UINT64)(UINTN)(Private->BufferPciAddr + EFI_PAGE_SIZE) & ~0xFFF;\r |
eb290d02 FT |
839 | \r |
840 | //\r | |
841 | // Address of I/O submission & completion queue.\r | |
842 | //\r | |
758ea946 | 843 | ZeroMem (Private->Buffer, EFI_PAGES_TO_SIZE (6));\r |
eb290d02 FT |
844 | Private->SqBuffer[0] = (NVME_SQ *)(UINTN)(Private->Buffer);\r |
845 | Private->SqBufferPciAddr[0] = (NVME_SQ *)(UINTN)(Private->BufferPciAddr);\r | |
846 | Private->CqBuffer[0] = (NVME_CQ *)(UINTN)(Private->Buffer + 1 * EFI_PAGE_SIZE);\r | |
847 | Private->CqBufferPciAddr[0] = (NVME_CQ *)(UINTN)(Private->BufferPciAddr + 1 * EFI_PAGE_SIZE);\r | |
848 | Private->SqBuffer[1] = (NVME_SQ *)(UINTN)(Private->Buffer + 2 * EFI_PAGE_SIZE);\r | |
849 | Private->SqBufferPciAddr[1] = (NVME_SQ *)(UINTN)(Private->BufferPciAddr + 2 * EFI_PAGE_SIZE);\r | |
850 | Private->CqBuffer[1] = (NVME_CQ *)(UINTN)(Private->Buffer + 3 * EFI_PAGE_SIZE);\r | |
851 | Private->CqBufferPciAddr[1] = (NVME_CQ *)(UINTN)(Private->BufferPciAddr + 3 * EFI_PAGE_SIZE);\r | |
758ea946 HW |
852 | Private->SqBuffer[2] = (NVME_SQ *)(UINTN)(Private->Buffer + 4 * EFI_PAGE_SIZE);\r |
853 | Private->SqBufferPciAddr[2] = (NVME_SQ *)(UINTN)(Private->BufferPciAddr + 4 * EFI_PAGE_SIZE);\r | |
854 | Private->CqBuffer[2] = (NVME_CQ *)(UINTN)(Private->Buffer + 5 * EFI_PAGE_SIZE);\r | |
855 | Private->CqBufferPciAddr[2] = (NVME_CQ *)(UINTN)(Private->BufferPciAddr + 5 * EFI_PAGE_SIZE);\r | |
eb290d02 FT |
856 | \r |
857 | DEBUG ((EFI_D_INFO, "Private->Buffer = [%016X]\n", (UINT64)(UINTN)Private->Buffer));\r | |
758ea946 HW |
858 | DEBUG ((EFI_D_INFO, "Admin Submission Queue size (Aqa.Asqs) = [%08X]\n", Aqa.Asqs));\r |
859 | DEBUG ((EFI_D_INFO, "Admin Completion Queue size (Aqa.Acqs) = [%08X]\n", Aqa.Acqs));\r | |
860 | DEBUG ((EFI_D_INFO, "Admin Submission Queue (SqBuffer[0]) = [%016X]\n", Private->SqBuffer[0]));\r | |
861 | DEBUG ((EFI_D_INFO, "Admin Completion Queue (CqBuffer[0]) = [%016X]\n", Private->CqBuffer[0]));\r | |
862 | DEBUG ((EFI_D_INFO, "Sync I/O Submission Queue (SqBuffer[1]) = [%016X]\n", Private->SqBuffer[1]));\r | |
863 | DEBUG ((EFI_D_INFO, "Sync I/O Completion Queue (CqBuffer[1]) = [%016X]\n", Private->CqBuffer[1]));\r | |
864 | DEBUG ((EFI_D_INFO, "Async I/O Submission Queue (SqBuffer[2]) = [%016X]\n", Private->SqBuffer[2]));\r | |
865 | DEBUG ((EFI_D_INFO, "Async I/O Completion Queue (CqBuffer[2]) = [%016X]\n", Private->CqBuffer[2]));\r | |
eb290d02 FT |
866 | \r |
867 | //\r | |
868 | // Program admin queue attributes.\r | |
869 | //\r | |
870 | Status = WriteNvmeAdminQueueAttributes (Private, &Aqa);\r | |
871 | \r | |
872 | if (EFI_ERROR(Status)) {\r | |
873 | return Status;\r | |
874 | }\r | |
875 | \r | |
876 | //\r | |
877 | // Program admin submission queue address.\r | |
878 | //\r | |
879 | Status = WriteNvmeAdminSubmissionQueueBaseAddress (Private, &Asq);\r | |
880 | \r | |
881 | if (EFI_ERROR(Status)) {\r | |
882 | return Status;\r | |
883 | }\r | |
884 | \r | |
885 | //\r | |
886 | // Program admin completion queue address.\r | |
887 | //\r | |
888 | Status = WriteNvmeAdminCompletionQueueBaseAddress (Private, &Acq);\r | |
889 | \r | |
890 | if (EFI_ERROR(Status)) {\r | |
891 | return Status;\r | |
892 | }\r | |
893 | \r | |
894 | Status = NvmeEnableController (Private);\r | |
895 | if (EFI_ERROR(Status)) {\r | |
896 | return Status;\r | |
897 | }\r | |
898 | \r | |
eb290d02 FT |
899 | //\r |
900 | // Allocate buffer for Identify Controller data\r | |
901 | //\r | |
eb290d02 | 902 | if (Private->ControllerData == NULL) {\r |
6523ae8b | 903 | Private->ControllerData = (NVME_ADMIN_CONTROLLER_DATA *)AllocateZeroPool (sizeof(NVME_ADMIN_CONTROLLER_DATA));\r |
d1102dba | 904 | \r |
6523ae8b TF |
905 | if (Private->ControllerData == NULL) {\r |
906 | return EFI_OUT_OF_RESOURCES;\r | |
907 | }\r | |
eb290d02 FT |
908 | }\r |
909 | \r | |
910 | //\r | |
911 | // Get current Identify Controller Data\r | |
912 | //\r | |
913 | Status = NvmeIdentifyController (Private, Private->ControllerData);\r | |
914 | \r | |
915 | if (EFI_ERROR(Status)) {\r | |
916 | FreePool(Private->ControllerData);\r | |
917 | Private->ControllerData = NULL;\r | |
918 | return EFI_NOT_FOUND;\r | |
919 | }\r | |
7b8883c6 FT |
920 | \r |
921 | //\r | |
922 | // Dump NvmExpress Identify Controller Data\r | |
923 | //\r | |
da7c7274 FT |
924 | CopyMem (Sn, Private->ControllerData->Sn, sizeof (Private->ControllerData->Sn));\r |
925 | Sn[20] = 0;\r | |
926 | CopyMem (Mn, Private->ControllerData->Mn, sizeof (Private->ControllerData->Mn));\r | |
927 | Mn[40] = 0;\r | |
7b8883c6 FT |
928 | DEBUG ((EFI_D_INFO, " == NVME IDENTIFY CONTROLLER DATA ==\n"));\r |
929 | DEBUG ((EFI_D_INFO, " PCI VID : 0x%x\n", Private->ControllerData->Vid));\r | |
930 | DEBUG ((EFI_D_INFO, " PCI SSVID : 0x%x\n", Private->ControllerData->Ssvid));\r | |
da7c7274 FT |
931 | DEBUG ((EFI_D_INFO, " SN : %a\n", Sn));\r |
932 | DEBUG ((EFI_D_INFO, " MN : %a\n", Mn));\r | |
7b8883c6 | 933 | DEBUG ((EFI_D_INFO, " FR : 0x%x\n", *((UINT64*)Private->ControllerData->Fr)));\r |
0f115375 | 934 | DEBUG ((DEBUG_INFO, " TNVMCAP (high 8-byte) : 0x%lx\n", *((UINT64*)(Private->ControllerData->Tnvmcap + 8))));\r |
935 | DEBUG ((DEBUG_INFO, " TNVMCAP (low 8-byte) : 0x%lx\n", *((UINT64*)Private->ControllerData->Tnvmcap)));\r | |
7b8883c6 | 936 | DEBUG ((EFI_D_INFO, " RAB : 0x%x\n", Private->ControllerData->Rab));\r |
4ab4497c | 937 | DEBUG ((EFI_D_INFO, " IEEE : 0x%x\n", *(UINT32*)Private->ControllerData->Ieee_oui));\r |
7b8883c6 FT |
938 | DEBUG ((EFI_D_INFO, " AERL : 0x%x\n", Private->ControllerData->Aerl));\r |
939 | DEBUG ((EFI_D_INFO, " SQES : 0x%x\n", Private->ControllerData->Sqes));\r | |
940 | DEBUG ((EFI_D_INFO, " CQES : 0x%x\n", Private->ControllerData->Cqes));\r | |
941 | DEBUG ((EFI_D_INFO, " NN : 0x%x\n", Private->ControllerData->Nn));\r | |
942 | \r | |
d6c55989 | 943 | //\r |
758ea946 HW |
944 | // Create two I/O completion queues.\r |
945 | // One for blocking I/O, one for non-blocking I/O.\r | |
d6c55989 FT |
946 | //\r |
947 | Status = NvmeCreateIoCompletionQueue (Private);\r | |
948 | if (EFI_ERROR(Status)) {\r | |
949 | return Status;\r | |
950 | }\r | |
951 | \r | |
952 | //\r | |
758ea946 HW |
953 | // Create two I/O Submission queues.\r |
954 | // One for blocking I/O, one for non-blocking I/O.\r | |
d6c55989 FT |
955 | //\r |
956 | Status = NvmeCreateIoSubmissionQueue (Private);\r | |
d6c55989 | 957 | \r |
eb290d02 FT |
958 | return Status;\r |
959 | }\r | |
960 | \r | |
7111e46f RN |
961 | /**\r |
962 | This routine is called to properly shutdown the Nvm Express controller per NVMe spec.\r | |
963 | \r | |
964 | @param[in] ResetType The type of reset to perform.\r | |
965 | @param[in] ResetStatus The status code for the reset.\r | |
966 | @param[in] DataSize The size, in bytes, of ResetData.\r | |
967 | @param[in] ResetData For a ResetType of EfiResetCold, EfiResetWarm, or\r | |
968 | EfiResetShutdown the data buffer starts with a Null-terminated\r | |
969 | string, optionally followed by additional binary data.\r | |
970 | The string is a description that the caller may use to further\r | |
c676cf74 | 971 | indicate the reason for the system reset.\r |
7111e46f RN |
972 | For a ResetType of EfiResetPlatformSpecific the data buffer\r |
973 | also starts with a Null-terminated string that is followed\r | |
974 | by an EFI_GUID that describes the specific type of reset to perform.\r | |
975 | **/\r | |
976 | VOID\r | |
977 | EFIAPI\r | |
978 | NvmeShutdownAllControllers (\r | |
979 | IN EFI_RESET_TYPE ResetType,\r | |
980 | IN EFI_STATUS ResetStatus,\r | |
981 | IN UINTN DataSize,\r | |
982 | IN VOID *ResetData OPTIONAL\r | |
983 | )\r | |
984 | {\r | |
985 | EFI_STATUS Status;\r | |
986 | EFI_HANDLE *Handles;\r | |
987 | UINTN HandleCount;\r | |
988 | UINTN HandleIndex;\r | |
989 | EFI_OPEN_PROTOCOL_INFORMATION_ENTRY *OpenInfos;\r | |
990 | UINTN OpenInfoCount;\r | |
991 | UINTN OpenInfoIndex;\r | |
992 | EFI_NVM_EXPRESS_PASS_THRU_PROTOCOL *NvmePassThru;\r | |
993 | NVME_CC Cc;\r | |
994 | NVME_CSTS Csts;\r | |
995 | UINTN Index;\r | |
996 | NVME_CONTROLLER_PRIVATE_DATA *Private;\r | |
997 | \r | |
998 | Status = gBS->LocateHandleBuffer (\r | |
999 | ByProtocol,\r | |
1000 | &gEfiPciIoProtocolGuid,\r | |
1001 | NULL,\r | |
1002 | &HandleCount,\r | |
1003 | &Handles\r | |
1004 | );\r | |
1005 | if (EFI_ERROR (Status)) {\r | |
1006 | HandleCount = 0;\r | |
1007 | }\r | |
1008 | \r | |
1009 | for (HandleIndex = 0; HandleIndex < HandleCount; HandleIndex++) {\r | |
1010 | Status = gBS->OpenProtocolInformation (\r | |
1011 | Handles[HandleIndex],\r | |
1012 | &gEfiPciIoProtocolGuid,\r | |
1013 | &OpenInfos,\r | |
1014 | &OpenInfoCount\r | |
1015 | );\r | |
1016 | if (EFI_ERROR (Status)) {\r | |
1017 | continue;\r | |
1018 | }\r | |
1019 | \r | |
1020 | for (OpenInfoIndex = 0; OpenInfoIndex < OpenInfoCount; OpenInfoIndex++) {\r | |
1021 | //\r | |
1022 | // Find all the NVME controller managed by this driver.\r | |
1023 | // gImageHandle equals to DriverBinding handle for this driver.\r | |
1024 | //\r | |
1025 | if (((OpenInfos[OpenInfoIndex].Attributes & EFI_OPEN_PROTOCOL_BY_DRIVER) != 0) &&\r | |
1026 | (OpenInfos[OpenInfoIndex].AgentHandle == gImageHandle)) {\r | |
1027 | Status = gBS->OpenProtocol (\r | |
1028 | OpenInfos[OpenInfoIndex].ControllerHandle,\r | |
1029 | &gEfiNvmExpressPassThruProtocolGuid,\r | |
1030 | (VOID **) &NvmePassThru,\r | |
1031 | NULL,\r | |
1032 | NULL,\r | |
1033 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
1034 | );\r | |
1035 | if (EFI_ERROR (Status)) {\r | |
1036 | continue;\r | |
1037 | }\r | |
1038 | Private = NVME_CONTROLLER_PRIVATE_DATA_FROM_PASS_THRU (NvmePassThru);\r | |
1039 | \r | |
1040 | //\r | |
1041 | // Read Controller Configuration Register.\r | |
1042 | //\r | |
1043 | Status = ReadNvmeControllerConfiguration (Private, &Cc);\r | |
1044 | if (EFI_ERROR(Status)) {\r | |
1045 | continue;\r | |
1046 | }\r | |
1047 | //\r | |
1048 | // The host should set the Shutdown Notification (CC.SHN) field to 01b\r | |
1049 | // to indicate a normal shutdown operation.\r | |
1050 | //\r | |
1051 | Cc.Shn = NVME_CC_SHN_NORMAL_SHUTDOWN;\r | |
1052 | Status = WriteNvmeControllerConfiguration (Private, &Cc);\r | |
1053 | if (EFI_ERROR(Status)) {\r | |
1054 | continue;\r | |
1055 | }\r | |
1056 | \r | |
1057 | //\r | |
1058 | // The controller indicates when shutdown processing is completed by updating the\r | |
1059 | // Shutdown Status (CSTS.SHST) field to 10b.\r | |
1060 | // Wait up to 45 seconds (break down to 4500 x 10ms) for the shutdown to complete.\r | |
1061 | //\r | |
1062 | for (Index = 0; Index < NVME_SHUTDOWN_PROCESS_TIMEOUT * 100; Index++) {\r | |
1063 | Status = ReadNvmeControllerStatus (Private, &Csts);\r | |
1064 | if (!EFI_ERROR(Status) && (Csts.Shst == NVME_CSTS_SHST_SHUTDOWN_COMPLETED)) {\r | |
1065 | DEBUG((DEBUG_INFO, "NvmeShutdownController: shutdown processing is completed after %dms.\n", Index * 10));\r | |
1066 | break;\r | |
1067 | }\r | |
1068 | //\r | |
1069 | // Stall for 10ms\r | |
1070 | //\r | |
1071 | gBS->Stall (10 * 1000);\r | |
1072 | }\r | |
1073 | \r | |
1074 | if (Index == NVME_SHUTDOWN_PROCESS_TIMEOUT * 100) {\r | |
1075 | DEBUG((DEBUG_ERROR, "NvmeShutdownController: shutdown processing is timed out\n"));\r | |
1076 | }\r | |
1077 | }\r | |
1078 | }\r | |
1079 | }\r | |
1080 | }\r | |
1081 | \r | |
1082 | /**\r | |
1083 | Register the shutdown notification through the ResetNotification protocol.\r | |
1084 | \r | |
1085 | Register the shutdown notification when mNvmeControllerNumber increased from 0 to 1.\r | |
1086 | **/\r | |
1087 | VOID\r | |
1088 | NvmeRegisterShutdownNotification (\r | |
1089 | VOID\r | |
1090 | )\r | |
1091 | {\r | |
1092 | EFI_STATUS Status;\r | |
1093 | EFI_RESET_NOTIFICATION_PROTOCOL *ResetNotify;\r | |
1094 | \r | |
1095 | mNvmeControllerNumber++;\r | |
1096 | if (mNvmeControllerNumber == 1) {\r | |
1097 | Status = gBS->LocateProtocol (&gEfiResetNotificationProtocolGuid, NULL, (VOID **) &ResetNotify);\r | |
1098 | if (!EFI_ERROR (Status)) {\r | |
1099 | Status = ResetNotify->RegisterResetNotify (ResetNotify, NvmeShutdownAllControllers);\r | |
1100 | ASSERT_EFI_ERROR (Status);\r | |
1101 | } else {\r | |
1102 | DEBUG ((DEBUG_WARN, "NVME: ResetNotification absent! Shutdown notification cannot be performed!\n"));\r | |
1103 | }\r | |
1104 | }\r | |
1105 | }\r | |
1106 | \r | |
1107 | /**\r | |
1108 | Unregister the shutdown notification through the ResetNotification protocol.\r | |
1109 | \r | |
1110 | Unregister the shutdown notification when mNvmeControllerNumber decreased from 1 to 0.\r | |
1111 | **/\r | |
1112 | VOID\r | |
1113 | NvmeUnregisterShutdownNotification (\r | |
1114 | VOID\r | |
1115 | )\r | |
1116 | {\r | |
1117 | EFI_STATUS Status;\r | |
1118 | EFI_RESET_NOTIFICATION_PROTOCOL *ResetNotify;\r | |
1119 | \r | |
1120 | mNvmeControllerNumber--;\r | |
1121 | if (mNvmeControllerNumber == 0) {\r | |
1122 | Status = gBS->LocateProtocol (&gEfiResetNotificationProtocolGuid, NULL, (VOID **) &ResetNotify);\r | |
1123 | if (!EFI_ERROR (Status)) {\r | |
1124 | Status = ResetNotify->UnregisterResetNotify (ResetNotify, NvmeShutdownAllControllers);\r | |
1125 | ASSERT_EFI_ERROR (Status);\r | |
1126 | }\r | |
1127 | }\r | |
1128 | }\r |