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4c5a5e0c 1/** @file\r
2 The header file of IScsiDriver.c.\r
3\r
4Copyright (c) 2004 - 2011, Intel Corporation. All rights reserved.<BR>\r
5This program and the accompanying materials\r
6are licensed and made available under the terms and conditions of the BSD License\r
7which accompanies this distribution. The full text of the license may be found at\r
8http://opensource.org/licenses/bsd-license.php\r
9\r
10THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
11WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
12\r
13**/\r
14\r
15#ifndef _ISCSI_DRIVER_H_\r
16#define _ISCSI_DRIVER_H_\r
17\r
18#define ISCSI_V4_PRIVATE_GUID \\r
19 { \\r
20 0xfa3cde4c, 0x87c2, 0x427d, { 0xae, 0xde, 0x7d, 0xd0, 0x96, 0xc8, 0x8c, 0x58 } \\r
21 }\r
22\r
23#define ISCSI_V6_PRIVATE_GUID \\r
24 { \\r
25 0x28be27e5, 0x66cc, 0x4a31, { 0xa3, 0x15, 0xdb, 0x14, 0xc3, 0x74, 0x4d, 0x85 } \\r
26 }\r
27\r
28#define ISCSI_INITIATOR_NAME_VAR_NAME L"I_NAME"\r
29\r
30#define IP_MODE_AUTOCONFIG_IP4 3\r
31#define IP_MODE_AUTOCONFIG_IP6 4\r
32#define IP_MODE_AUTOCONFIG_SUCCESS 5\r
33\r
34extern EFI_COMPONENT_NAME2_PROTOCOL gIScsiComponentName2;\r
35extern EFI_COMPONENT_NAME_PROTOCOL gIScsiComponentName;\r
36extern EFI_ISCSI_INITIATOR_NAME_PROTOCOL gIScsiInitiatorName;\r
37extern EFI_AUTHENTICATION_INFO_PROTOCOL gIScsiAuthenticationInfo;\r
38extern EFI_EXT_SCSI_PASS_THRU_PROTOCOL gIScsiExtScsiPassThruProtocolTemplate;\r
39\r
40typedef struct {\r
41 CHAR16 PortString[ISCSI_NAME_IFR_MAX_SIZE];\r
42 LIST_ENTRY NicInfoList;\r
43 UINT8 NicCount;\r
44 UINT8 CurrentNic;\r
45 UINT8 MaxNic;\r
46 BOOLEAN Ipv6Flag;\r
47 BOOLEAN OneSessionEstablished;\r
48 BOOLEAN EnableMpio;\r
49 UINT8 MpioCount; // The number of attempts in MPIO.\r
50 UINT8 Krb5MpioCount; // The number of attempts login with KRB5 in MPIO.\r
51 UINT8 SinglePathCount; // The number of single path attempts.\r
52 UINT8 ValidSinglePathCount; // The number of valid single path attempts.\r
53 UINT8 BootSelectedIndex;\r
54 UINT8 AttemptCount;\r
55 LIST_ENTRY AttemptConfigs; // User configured Attempt list.\r
56 CHAR8 InitiatorName[ISCSI_NAME_MAX_SIZE];\r
57 UINTN InitiatorNameLength;\r
c0d494b5 58 VOID *NewAttempt; // Attempt is created but not saved.\r
4c5a5e0c 59} ISCSI_PRIVATE_DATA;\r
60\r
61extern ISCSI_PRIVATE_DATA *mPrivate;\r
62\r
63typedef struct {\r
64 LIST_ENTRY Link;\r
65 UINT32 HwAddressSize;\r
66 EFI_MAC_ADDRESS PermanentAddress;\r
67 UINT8 NicIndex;\r
68 UINT16 VlanId;\r
69 UINTN BusNumber;\r
70 UINTN DeviceNumber;\r
71 UINTN FunctionNumber;\r
72} ISCSI_NIC_INFO;\r
73\r
74typedef struct _ISCSI_PRIVATE_PROTOCOL {\r
75 UINT32 Reserved;\r
76} ISCSI_PRIVATE_PROTOCOL;\r
77\r
78//\r
79// EFI Driver Binding Protocol for iSCSI driver.\r
80//\r
81\r
82/**\r
83 Tests to see if this driver supports a given controller. If a child device is provided, \r
84 it tests to see if this driver supports creating a handle for the specified child device.\r
85\r
86 This function checks to see if the driver specified by This supports the device specified by \r
87 ControllerHandle. Drivers typically use the device path attached to \r
88 ControllerHandle and/or the services from the bus I/O abstraction attached to \r
89 ControllerHandle to determine if the driver supports ControllerHandle. This function \r
90 may be called many times during platform initialization. In order to reduce boot times, the tests \r
91 performed by this function must be very small and take as little time as possible to execute. This \r
92 function must not change the state of any hardware devices, and this function must be aware that the \r
93 device specified by ControllerHandle may already be managed by the same driver or a \r
94 different driver. This function must match its calls to AllocatePages() with FreePages(), \r
95 AllocatePool() with FreePool(), and OpenProtocol() with CloseProtocol(). \r
96 Since ControllerHandle may have been previously started by the same driver, if a protocol is \r
97 already in the opened state, then it must not be closed with CloseProtocol(). This is required \r
98 to guarantee the state of ControllerHandle is not modified by this function.\r
99\r
100 @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.\r
101 @param[in] ControllerHandle The handle of the controller to test. This handle \r
102 must support a protocol interface that supplies \r
103 an I/O abstraction to the driver.\r
104 @param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This \r
105 parameter is ignored by device drivers, and is optional for bus \r
106 drivers. For bus drivers, if this parameter is not NULL, then \r
107 the bus driver must determine if the bus controller specified \r
108 by ControllerHandle and the child controller specified \r
109 by RemainingDevicePath are both supported by this \r
110 bus driver.\r
111\r
112 @retval EFI_SUCCESS The device specified by ControllerHandle and\r
113 RemainingDevicePath is supported by the driver specified by This.\r
114 @retval EFI_ALREADY_STARTED The device specified by ControllerHandle and\r
115 RemainingDevicePath is already managed by the driver\r
116 specified by This.\r
117 @retval EFI_ACCESS_DENIED The device specified by ControllerHandle and\r
118 RemainingDevicePath is already managed by a different\r
119 driver or an application that requires exclusive access.\r
120 Currently not implemented.\r
121 @retval EFI_UNSUPPORTED The device specified by ControllerHandle and\r
122 RemainingDevicePath is not supported by the driver specified by This.\r
123**/\r
124EFI_STATUS\r
125EFIAPI\r
126IScsiDriverBindingSupported (\r
127 IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
128 IN EFI_HANDLE ControllerHandle,\r
129 IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL\r
130 );\r
131\r
132/**\r
133 Starts a device controller or a bus controller.\r
134\r
135 The Start() function is designed to be invoked from the EFI boot service ConnectController().\r
136 As a result, much of the error checking on the parameters to Start() has been moved into this \r
137 common boot service. It is legal to call Start() from other locations, \r
138 but the following calling restrictions must be followed or the system behavior will not be deterministic.\r
139 1. ControllerHandle must be a valid EFI_HANDLE.\r
140 2. If RemainingDevicePath is not NULL, then it must be a pointer to a naturally aligned\r
141 EFI_DEVICE_PATH_PROTOCOL.\r
142 3. Prior to calling Start(), the Supported() function for the driver specified by This must\r
143 have been called with the same calling parameters, and Supported() must have returned EFI_SUCCESS. \r
144\r
145 @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.\r
146 @param[in] ControllerHandle The handle of the controller to start. This handle \r
147 must support a protocol interface that supplies \r
148 an I/O abstraction to the driver.\r
149 @param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This \r
150 parameter is ignored by device drivers, and is optional for bus \r
151 drivers. For a bus driver, if this parameter is NULL, then handles \r
152 for all the children of Controller are created by this driver. \r
153 If this parameter is not NULL and the first Device Path Node is \r
154 not the End of Device Path Node, then only the handle for the \r
155 child device specified by the first Device Path Node of \r
156 RemainingDevicePath is created by this driver.\r
157 If the first Device Path Node of RemainingDevicePath is \r
158 the End of Device Path Node, no child handle is created by this\r
159 driver.\r
160\r
161 @retval EFI_SUCCESS The device was started.\r
162 @retval EFI_DEVICE_ERROR The device could not be started due to a device error. Currently not implemented.\r
163 @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.\r
164 @retval Others The driver failed to start the device.\r
165\r
166**/\r
167EFI_STATUS\r
168EFIAPI\r
169IScsiDriverBindingStart (\r
170 IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
171 IN EFI_HANDLE ControllerHandle,\r
172 IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL\r
173 );\r
174\r
175/**\r
176 Stops a device controller or a bus controller.\r
177 \r
178 The Stop() function is designed to be invoked from the EFI boot service DisconnectController(). \r
179 As a result, much of the error checking on the parameters to Stop() has been moved \r
180 into this common boot service. It is legal to call Stop() from other locations, \r
181 but the following calling restrictions must be followed or the system behavior will not be deterministic.\r
182 1. ControllerHandle must be a valid EFI_HANDLE that was used on a previous call to this\r
183 same driver's Start() function.\r
184 2. The first NumberOfChildren handles of ChildHandleBuffer must all be a valid\r
185 EFI_HANDLE. In addition, all of these handles must have been created in this driver's\r
186 Start() function, and the Start() function must have called OpenProtocol() on\r
187 ControllerHandle with an Attribute of EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER.\r
188 \r
189 @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.\r
190 @param[in] ControllerHandle A handle to the device being stopped. The handle must \r
191 support a bus specific I/O protocol for the driver \r
192 to use to stop the device.\r
193 @param[in] NumberOfChildren The number of child device handles in ChildHandleBuffer.\r
194 @param[in] ChildHandleBuffer An array of child handles to be freed. May be NULL \r
195 if NumberOfChildren is 0.\r
196\r
197 @retval EFI_SUCCESS The device was stopped.\r
198 @retval EFI_DEVICE_ERROR The device could not be stopped due to a device error.\r
199\r
200**/\r
201EFI_STATUS\r
202EFIAPI\r
203IScsiDriverBindingStop (\r
204 IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
205 IN EFI_HANDLE ControllerHandle,\r
206 IN UINTN NumberOfChildren,\r
207 IN EFI_HANDLE *ChildHandleBuffer OPTIONAL\r
208 );\r
209\r
210//\r
211// EFI Component Name(2) Protocol for iSCSI driver.\r
212//\r
213\r
214/**\r
215 Retrieves a Unicode string that is the user readable name of the driver.\r
216\r
217 This function retrieves the user readable name of a driver in the form of a\r
218 Unicode string. If the driver specified by This has a user readable name in\r
219 the language specified by Language, then a pointer to the driver name is\r
220 returned in DriverName, and EFI_SUCCESS is returned. If the driver specified\r
221 by This does not support the language specified by Language,\r
222 then EFI_UNSUPPORTED is returned.\r
223\r
224 @param[in] This A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or\r
225 EFI_COMPONENT_NAME_PROTOCOL instance.\r
226\r
227 @param[in] Language A pointer to a Null-terminated ASCII string\r
228 array indicating the language. This is the\r
229 language of the driver name that the caller is\r
230 requesting, and it must match one of the\r
231 languages specified in SupportedLanguages. The\r
232 number of languages supported by a driver is up\r
233 to the driver writer. Language is specified\r
234 in RFC 4646 or ISO 639-2 language code format.\r
235\r
236 @param[out] DriverName A pointer to the Unicode string to return.\r
237 This Unicode string is the name of the\r
238 driver specified by This in the language\r
239 specified by Language.\r
240\r
241 @retval EFI_SUCCESS The Unicode string for the Driver specified by\r
242 This and the language specified by Language was\r
243 returned in DriverName.\r
244\r
245 @retval EFI_INVALID_PARAMETER Language is NULL.\r
246\r
247 @retval EFI_INVALID_PARAMETER DriverName is NULL.\r
248\r
249 @retval EFI_UNSUPPORTED The driver specified by This does not support\r
250 the language specified by Language.\r
251\r
252**/\r
253EFI_STATUS\r
254EFIAPI\r
255IScsiComponentNameGetDriverName (\r
256 IN EFI_COMPONENT_NAME_PROTOCOL *This,\r
257 IN CHAR8 *Language,\r
258 OUT CHAR16 **DriverName\r
259 );\r
260\r
261/**\r
262 Retrieves a Unicode string that is the user readable name of the controller\r
263 that is being managed by a driver.\r
264\r
265 This function retrieves the user readable name of the controller specified by\r
266 ControllerHandle and ChildHandle in the form of a Unicode string. If the\r
267 driver specified by This has a user readable name in the language specified by\r
268 Language, then a pointer to the controller name is returned in ControllerName,\r
269 and EFI_SUCCESS is returned. If the driver specified by This is not currently\r
270 managing the controller specified by ControllerHandle and ChildHandle,\r
271 then EFI_UNSUPPORTED is returned. If the driver specified by This does not\r
272 support the language specified by Language, then EFI_UNSUPPORTED is returned.\r
273\r
274 @param[in] This A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or\r
275 EFI_COMPONENT_NAME_PROTOCOL instance.\r
276\r
277 @param[in] ControllerHandle The handle of a controller that the driver\r
278 specified by This is managing. This handle\r
279 specifies the controller whose name is to be\r
280 returned.\r
281\r
282 @param[in] ChildHandle The handle of the child controller to retrieve\r
283 the name of. This is an optional parameter that\r
284 may be NULL. It will be NULL for device\r
285 drivers. It will also be NULL for a bus drivers\r
286 that wish to retrieve the name of the bus\r
287 controller. It will not be NULL for a bus\r
288 driver that wishes to retrieve the name of a\r
289 child controller.\r
290\r
291 @param[in] Language A pointer to a Null-terminated ASCII string\r
292 array indicating the language. This is the\r
293 language of the driver name that the caller is\r
294 requesting, and it must match one of the\r
295 languages specified in SupportedLanguages. The\r
296 number of languages supported by a driver is \r
297 determined by the driver writer. Language is \r
298 specified inRFC 4646 or ISO 639-2 language code \r
299 format.\r
300 \r
301 @param[out] ControllerName A pointer to the Unicode string to return.\r
302 This Unicode string is the name of the\r
303 controller specified by ControllerHandle and\r
304 ChildHandle in the language specified by\r
305 Language from the point of view of the driver\r
306 specified by This.\r
307\r
308 @retval EFI_SUCCESS The Unicode string for the user readable name in\r
309 the language specified by Language for the\r
310 driver specified by This was returned in\r
311 DriverName.\r
312\r
313 @retval EFI_INVALID_PARAMETER ControllerHandle is NULL.\r
314\r
315 @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid\r
316 EFI_HANDLE.\r
317\r
318 @retval EFI_INVALID_PARAMETER Language is NULL.\r
319\r
320 @retval EFI_INVALID_PARAMETER ControllerName is NULL.\r
321\r
322 @retval EFI_UNSUPPORTED The driver specified by This is not currently\r
323 managing the controller specified by\r
324 ControllerHandle and ChildHandle.\r
325\r
326 @retval EFI_UNSUPPORTED The driver specified by This does not support\r
327 the language specified by Language.\r
328\r
329**/\r
330EFI_STATUS\r
331EFIAPI\r
332IScsiComponentNameGetControllerName (\r
333 IN EFI_COMPONENT_NAME_PROTOCOL *This,\r
334 IN EFI_HANDLE ControllerHandle,\r
335 IN EFI_HANDLE ChildHandle OPTIONAL,\r
336 IN CHAR8 *Language,\r
337 OUT CHAR16 **ControllerName\r
338 );\r
339\r
340//\r
341// EFI iSCSI Initiator Name Protocol for iSCSI driver.\r
342//\r
343\r
344/**\r
345 Retrieves the current set value of iSCSI Initiator Name.\r
346\r
347 @param[in] This Pointer to the EFI_ISCSI_INITIATOR_NAME_PROTOCOL\r
348 instance.\r
349 @param[in, out] BufferSize Size of the buffer in bytes pointed to by Buffer /\r
350 Actual size of the variable data buffer.\r
351 @param[out] Buffer Pointer to the buffer for data to be read.\r
352\r
353 @retval EFI_SUCCESS Data was successfully retrieved into the provided\r
354 buffer and the BufferSize was sufficient to handle\r
355 the iSCSI initiator name.\r
356 @retval EFI_BUFFER_TOO_SMALL BufferSize is too small for the result. BufferSize\r
357 will be updated with the size required to complete\r
358 the request. Buffer will not be affected.\r
359 @retval EFI_INVALID_PARAMETER BufferSize is NULL. BufferSize and Buffer will not\r
360 be affected.\r
361 @retval EFI_INVALID_PARAMETER Buffer is NULL. BufferSize and Buffer will not be\r
362 affected.\r
363 @retval EFI_DEVICE_ERROR The iSCSI initiator name could not be retrieved\r
364 due to a hardware error.\r
365\r
366**/\r
367EFI_STATUS\r
368EFIAPI\r
369IScsiGetInitiatorName (\r
370 IN EFI_ISCSI_INITIATOR_NAME_PROTOCOL *This,\r
371 IN OUT UINTN *BufferSize,\r
372 OUT VOID *Buffer\r
373 );\r
374\r
375/**\r
376 Sets the iSSI Initiator Name.\r
377\r
378 @param[in] This Pointer to the EFI_ISCSI_INITIATOR_NAME_PROTOCOL\r
379 instance.\r
380 @param[in, out] BufferSize Size of the buffer in bytes pointed to by Buffer.\r
381 @param[in] Buffer Pointer to the buffer for data to be written.\r
382\r
383 @retval EFI_SUCCESS Data was successfully stored by the protocol.\r
384 @retval EFI_UNSUPPORTED Platform policies do not allow for data to be\r
385 written.\r
386 @retval EFI_INVALID_PARAMETER BufferSize exceeds the maximum allowed limit.\r
387 BufferSize will be updated with the maximum size\r
388 required to complete the request.\r
389 @retval EFI_INVALID_PARAMETER Buffersize is NULL. BufferSize and Buffer will not\r
390 be affected.\r
391 @retval EFI_INVALID_PARAMETER Buffer is NULL. BufferSize and Buffer will not be\r
392 affected.\r
393 @retval EFI_DEVICE_ERROR The data could not be stored due to a hardware\r
394 error.\r
395 @retval EFI_OUT_OF_RESOURCES Not enough storage is available to hold the data\r
396 @retval EFI_PROTOCOL_ERROR Input iSCSI initiator name does not adhere to RFC\r
397 3720\r
398\r
399**/\r
400EFI_STATUS\r
401EFIAPI\r
402IScsiSetInitiatorName (\r
403 IN EFI_ISCSI_INITIATOR_NAME_PROTOCOL *This,\r
404 IN OUT UINTN *BufferSize,\r
405 IN VOID *Buffer\r
406 );\r
407\r
408//\r
409// EFI_AUTHENTICATION_INFO_PROTOCOL for iSCSI driver.\r
410//\r
411\r
412/**\r
413 Retrieves the authentication information associated with a particular controller handle.\r
414\r
415 @param[in] This Pointer to the EFI_AUTHENTICATION_INFO_PROTOCOL.\r
416 @param[in] ControllerHandle Handle to the Controller.\r
417 @param[out] Buffer Pointer to the authentication information. This function is\r
418 responsible for allocating the buffer and it is the caller's\r
419 responsibility to free buffer when the caller is finished with buffer.\r
420\r
421 @retval EFI_DEVICE_ERROR The authentication information could not be\r
422 retrieved due to a hardware error.\r
423\r
424**/\r
425EFI_STATUS\r
426EFIAPI\r
427IScsiGetAuthenticationInfo (\r
428 IN EFI_AUTHENTICATION_INFO_PROTOCOL *This,\r
429 IN EFI_HANDLE ControllerHandle,\r
430 OUT VOID **Buffer\r
431 );\r
432\r
433/**\r
434 Set the authentication information for a given controller handle.\r
435\r
436 @param[in] This Pointer to the EFI_AUTHENTICATION_INFO_PROTOCOL.\r
437 @param[in] ControllerHandle Handle to the Controller.\r
438 @param[in] Buffer Pointer to the authentication information.\r
439\r
440 @retval EFI_UNSUPPORTED If the platform policies do not allow setting of\r
441 the authentication information.\r
442\r
443**/\r
444EFI_STATUS\r
445EFIAPI\r
446IScsiSetAuthenticationInfo (\r
447 IN EFI_AUTHENTICATION_INFO_PROTOCOL *This,\r
448 IN EFI_HANDLE ControllerHandle,\r
449 IN VOID *Buffer\r
450 );\r
451\r
452//\r
453// EFI_EXT_SCSI_PASS_THRU_PROTOCOL for iSCSI driver.\r
454//\r
455\r
456/**\r
457 Sends a SCSI Request Packet to a SCSI device that is attached to the SCSI channel.\r
458 This function supports both blocking I/O and nonblocking I/O. The blocking I/O\r
459 functionality is required, and the nonblocking I/O functionality is optional. \r
460\r
461 @param[in] This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.\r
462 @param[in] Target The Target is an array of size TARGET_MAX_BYTES and it\r
463 represents the id of the SCSI device to send the SCSI\r
464 Request Packet. Each transport driver may choose to\r
465 utilize a subset of this size to suit the needs\r
466 of transport target representation. For example, a \r
467 Fibre Channel driver may use only 8 bytes (WWN)\r
468 to represent an FC target.\r
469 @param[in] Lun The LUN of the SCSI device to send the SCSI Request Packet.\r
470 @param[in, out] Packet A pointer to the SCSI Request Packet to send to the\r
471 SCSI device specified by Target and Lun. \r
472 @param[in] Event If nonblocking I/O is not supported then Event is ignored,\r
473 and blocking I/O is performed. If Event is NULL, then\r
474 blocking I/O is performed. If Event is not NULL and non\r
475 blocking I/O is supported, then nonblocking I/O is performed,\r
476 and Event will be signaled when the SCSI Request Packet\r
477 completes.\r
478\r
479 @retval EFI_SUCCESS The SCSI Request Packet was sent by the host. For\r
480 bi-directional commands, InTransferLength bytes \r
481 were transferred from InDataBuffer.\r
482 For write and bi-directional commands, OutTransferLength\r
483 bytes were transferred by OutDataBuffer.\r
484 @retval EFI_BAD_BUFFER_SIZE The SCSI Request Packet was not executed.\r
485 The number of bytes that could be transferred is\r
486 returned in InTransferLength. For write and\r
487 bi-directional commands, OutTransferLength bytes\r
488 were transferred by OutDataBuffer.\r
489 @retval EFI_NOT_READY The SCSI Request Packet could not be sent because\r
490 there are too many SCSI Request Packets already\r
491 queued. The caller may retry later.\r
492 @retval EFI_DEVICE_ERROR A device error occurred while attempting to send\r
493 the SCSI Request Packet. \r
494 @retval EFI_INVALID_PARAMETER Target, Lun, or the contents of ScsiRequestPacket\r
495 are invalid.\r
496 @retval EFI_UNSUPPORTED The command described by the SCSI Request Packet\r
497 is not supported by the host adapter.\r
498 This includes the case of Bi-directional SCSI\r
499 commands not supported by the implementation.\r
500 The SCSI Request Packet was not sent,\r
501 so no additional status information is available.\r
502 @retval EFI_TIMEOUT A timeout occurred while waiting for the SCSI\r
503 Request Packet to execute.\r
504\r
505**/\r
506EFI_STATUS\r
507EFIAPI\r
508IScsiExtScsiPassThruFunction (\r
509 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,\r
510 IN UINT8 *Target,\r
511 IN UINT64 Lun,\r
512 IN OUT EFI_EXT_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *Packet,\r
513 IN EFI_EVENT Event OPTIONAL\r
514 );\r
515\r
516/**\r
517 Used to retrieve the list of legal Target IDs and LUNs for SCSI devices on\r
518 a SCSI channel. These can either be the list SCSI devices that are actually\r
519 present on the SCSI channel, or the list of legal Target Ids and LUNs for the\r
520 SCSI channel. Regardless, the caller of this function must probe the Target ID \r
521 and LUN returned to see if a SCSI device is actually present at that location \r
522 on the SCSI channel. \r
523\r
524 @param[in] This The EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.\r
525 @param[in, out] Target On input, a pointer to the Target ID of a SCSI\r
526 device present on the SCSI channel. On output, a\r
527 pointer to the Target ID of the next SCSI device\r
528 present on a SCSI channel. An input value of\r
529 0xFFFFFFFF retrieves the Target ID of the first\r
530 SCSI device present on a SCSI channel.\r
531 @param[in, out] Lun On input, a pointer to the LUN of a SCSI device\r
532 present on the SCSI channel. On output, a pointer\r
533 to the LUN of the next SCSI device present on a\r
534 SCSI channel.\r
535\r
536 @retval EFI_SUCCESS The Target ID and Lun of the next SCSI device on\r
537 the SCSI channel was returned in Target and Lun.\r
538 @retval EFI_NOT_FOUND There are no more SCSI devices on this SCSI\r
539 channel.\r
540 @retval EFI_INVALID_PARAMETER Target is not 0xFFFFFFFF,and Target and Lun were\r
541 not returned on a previous call to\r
542 GetNextDevice().\r
543\r
544**/\r
545EFI_STATUS\r
546EFIAPI\r
547IScsiExtScsiPassThruGetNextTargetLun (\r
548 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,\r
549 IN OUT UINT8 **Target,\r
550 IN OUT UINT64 *Lun\r
551 );\r
552\r
553/**\r
554 Allocate and build a device path node for a SCSI device on a SCSI channel.\r
555\r
556 @param[in] This Protocol instance pointer.\r
557 @param[in] Target The Target ID of the SCSI device for which a\r
558 device path node is to be allocated and built.\r
559 @param[in] Lun The LUN of the SCSI device for which a device\r
560 path node is to be allocated and built.\r
561 @param[in, out] DevicePath A pointer to a single device path node that\r
562 describes the SCSI device specified by Target and\r
563 Lun. This function is responsible for allocating\r
564 the buffer DevicePath with the boot service\r
565 AllocatePool(). It is the caller's\r
566 responsibility to free DevicePath when the caller\r
567 is finished with DevicePath.\r
568\r
569 @retval EFI_SUCCESS The device path node that describes the SCSI\r
570 device specified by Target and Lun was allocated\r
571 and returned in DevicePath.\r
572 @retval EFI_NOT_FOUND The SCSI devices specified by Target and Lun does\r
573 not exist on the SCSI channel.\r
574 @retval EFI_INVALID_PARAMETER DevicePath is NULL.\r
575 @retval EFI_OUT_OF_RESOURCES There are not enough resources to allocate\r
576 DevicePath.\r
577\r
578**/\r
579EFI_STATUS\r
580EFIAPI\r
581IScsiExtScsiPassThruBuildDevicePath (\r
582 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,\r
583 IN UINT8 *Target,\r
584 IN UINT64 Lun,\r
585 IN OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath\r
586 );\r
587\r
588/**\r
589 Translate a device path node to a Target ID and LUN.\r
590\r
591 @param[in] This Protocol instance pointer.\r
592 @param[in] DevicePath A pointer to the device path node that describes\r
593 a SCSI device on the SCSI channel.\r
594 @param[out] Target A pointer to the Target ID of a SCSI device on\r
595 the SCSI channel.\r
596 @param[out] Lun A pointer to the LUN of a SCSI device on the SCSI\r
597 channel.\r
598\r
599 @retval EFI_SUCCESS DevicePath was successfully translated to a\r
600 Target ID and LUN, and they were returned in\r
601 Target and Lun.\r
602 @retval EFI_INVALID_PARAMETER DevicePath/Target/Lun is NULL.\r
603 @retval EFI_UNSUPPORTED This driver does not support the device path node\r
604 type in DevicePath.\r
605 @retval EFI_NOT_FOUND A valid translation from DevicePath to a Target\r
606 ID and LUN does not exist.\r
607\r
608**/\r
609EFI_STATUS\r
610EFIAPI\r
611IScsiExtScsiPassThruGetTargetLun (\r
612 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,\r
613 IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,\r
614 OUT UINT8 **Target,\r
615 OUT UINT64 *Lun\r
616 );\r
617\r
618/**\r
619 Resets a SCSI channel.This operation resets all the SCSI devices connected to\r
620 the SCSI channel.\r
621\r
622 @param[in] This Protocol instance pointer.\r
623\r
624 @retval EFI_UNSUPPORTED It is not supported.\r
625\r
626**/\r
627EFI_STATUS\r
628EFIAPI\r
629IScsiExtScsiPassThruResetChannel (\r
630 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This\r
631 );\r
632\r
633/**\r
634 Resets a SCSI device that is connected to a SCSI channel.\r
635\r
636 @param[in] This Protocol instance pointer.\r
637 @param[in] Target The Target ID of the SCSI device to reset.\r
638 @param[in] Lun The LUN of the SCSI device to reset.\r
639\r
640 @retval EFI_UNSUPPORTED It is not supported.\r
641\r
642**/\r
643EFI_STATUS\r
644EFIAPI\r
645IScsiExtScsiPassThruResetTargetLun (\r
646 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,\r
647 IN UINT8 *Target,\r
648 IN UINT64 Lun\r
649 );\r
650\r
651/**\r
652 Retrieve the list of legal Target IDs for SCSI devices on a SCSI channel. \r
653\r
654 @param[in] This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL\r
655 instance.\r
656 @param[in, out] Target (TARGET_MAX_BYTES) of a SCSI device present on\r
657 the SCSI channel. On output, a pointer to the\r
658 Target ID (an array of TARGET_MAX_BYTES) of the\r
659 next SCSI device present on a SCSI channel.\r
660 An input value of 0xF(all bytes in the array are 0xF)\r
661 in the Target array retrieves the Target ID of the\r
662 first SCSI device present on a SCSI channel. \r
663\r
664 @retval EFI_SUCCESS The Target ID of the next SCSI device on the SCSI\r
665 channel was returned in Target.\r
666 @retval EFI_INVALID_PARAMETER Target or Lun is NULL.\r
667 @retval EFI_TIMEOUT Target array is not all 0xF, and Target was not\r
668 returned on a previous call to GetNextTarget().\r
669 @retval EFI_NOT_FOUND There are no more SCSI devices on this SCSI channel.\r
670\r
671**/\r
672EFI_STATUS\r
673EFIAPI\r
674IScsiExtScsiPassThruGetNextTarget (\r
675 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,\r
676 IN OUT UINT8 **Target\r
677 );\r
678\r
679#endif\r