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54 #ifndef _SCIC_IO_REQUEST_H_
55 #define _SCIC_IO_REQUEST_H_
60 * @brief This file contains the structures and interface methods that
61 * can be referenced and used by the SCI user for the SCI IO request
64 * @todo Determine the failure situations and return values.
71 #include <dev/isci/scil/sci_types.h>
72 #include <dev/isci/scil/sci_status.h>
73 #include <dev/isci/scil/intel_sas.h>
76 * @struct SCIC_IO_SSP_PARAMETERS
77 * @brief This structure contains additional optional parameters for SSP
78 * IO requests. These parameters are utilized with the
79 * scic_io_request_construct_advanced_ssp() method.
81 * @todo Add Block-guard/DIF, TLR
83 typedef struct SCIC_IO_SSP_PARAMETERS
86 * Data Integrity Format (DIF) is also known as protection information
87 * or block-guard. This sub-structure contains DIF specific feature
88 * information for SSP IO requests.
96 * Transport Layer Retries (TLR) is an SSP protocol specific feature.
97 * This sub-structure contains Transport Layer Retries (TLR) specific
98 * feature information for SSP IO requests.
105 } SCIC_IO_SSP_PARAMETERS_T;
108 * @struct SCIC_IO_PARAMETERS
109 * @brief This structure contains additional optional parameters for
110 * STP/SATA IO requests. These parameters are utilized with the
111 * scic_io_request_construct_advanced_sata() method.
113 typedef struct SCIC_IO_SATA_PARAMETERS
116 * This field indicates whether or not to construct the Scatter-Gather
117 * List elements for the SATA request. This is used in scenarios
118 * where Scatter-gather-list processing/translation is done by the
121 BOOL do_translate_sgl;
123 } SCIC_IO_SATA_PARAMETERS_T;
126 * @struct SCIC_PASSTHRU_REQUEST_CALLBACKS
127 * @brief This structure contains the pointer to the callback functions
128 * for constructing the passthrough request common to SSP, SMP and STP.
129 * This structure must be set by the win sci layer before the passthrough
133 typedef struct SCIC_PASSTHRU_REQUEST_CALLBACKS
136 * Function pointer to get the phy identifier for passthrough request.
138 U32 (*scic_cb_passthru_get_phy_identifier) ( void * , U8 *);
140 * Function pointer to get the port identifier for passthrough request.
142 U32 (*scic_cb_passthru_get_port_identifier) ( void * , U8 *);
144 * Function pointer to get the connection rate for passthrough request.
146 U32 (*scic_cb_passthru_get_connection_rate) ( void * , void *);
148 * Function pointer to get the destination sas address for passthrough request.
150 void (*scic_cb_passthru_get_destination_sas_address) (void *, U8 **);
152 * Function pointer to get the transfer length for passthrough request.
154 U32 (*scic_cb_passthru_get_transfer_length) (void *);
156 * Function pointer to get the data direction for passthrough request.
158 U32 (*scic_cb_passthru_get_data_direction) (void *);
160 } SCIC_PASSTHRU_REQUEST_CALLBACKS_T;
163 * @struct SCIC_SSP_PASSTHRU_REQUEST_CALLBACKS
164 * @brief This structure contains the pointer to the callback functions
165 * for constructing the passthrough request specific to SSP.
166 * This structure must be set by the win sci layer before the passthrough
170 typedef struct SCIC_SSP_PASSTHRU_REQUEST_CALLBACKS
173 * Common callbacks for all Passthru requests
175 SCIC_PASSTHRU_REQUEST_CALLBACKS_T common_callbacks;
177 * Function pointer to get the lun for passthrough request.
179 void (* scic_cb_ssp_passthru_get_lun) (void *, U8 **);
181 * Function pointer to get the cdb
183 void (* scic_cb_ssp_passthru_get_cdb) ( void *, U32 *, U8 **, U32 *, U8 ** );
185 * Function pointer to get the task attribute for passthrough request.
187 U32 (*scic_cb_ssp_passthru_get_task_attribute) (void *);
188 } SCIC_SSP_PASSTHRU_REQUEST_CALLBACKS_T;
191 * @struct SCIC_STP_PASSTHRU_REQUEST_CALLBACKS
192 * @brief This structure contains the pointer to the callback functions
193 * for constructing the passthrough request specific to STP.
194 * This structure must be set by the win sci layer before the passthrough
198 typedef struct SCIC_STP_PASSTHRU_REQUEST_CALLBACKS
201 * Common callbacks for all Passthru requests
203 SCIC_PASSTHRU_REQUEST_CALLBACKS_T common_callbacks;
205 * Function pointer to get the protocol for passthrough request.
207 U8 (* scic_cb_stp_passthru_get_protocol) (void *);
209 * Function pointer to get the resgister fis
211 void (* scic_cb_stp_passthru_get_register_fis) ( void *, U8 ** );
213 * Function pointer to get the MULTIPLE_COUNT (bits 5,6,7 in Byte 1 in the SAT-specific SCSI extenstion in ATA Pass-through (0x85))
215 U8 (* scic_cb_stp_passthru_get_multiplecount) ( void *);
217 * Function pointer to get the EXTEND (bit 0 in Byte 1 the SAT-specific SCSI extenstion in ATA Pass-through (0x85))
219 U8 (* scic_cb_stp_passthru_get_extend) ( void *);
221 * Function pointer to get the CK_COND (bit 5 in Byte 2 the SAT-specific SCSI extenstion in ATA Pass-through (0x85))
223 U8 (* scic_cb_stp_passthru_get_ckcond) ( void *);
225 * Function pointer to get the T_DIR (bit 3 in Byte 2 the SAT-specific SCSI extenstion in ATA Pass-through (0x85))
227 U8 (* scic_cb_stp_passthru_get_tdir) ( void *);
229 * Function pointer to get the BYTE_BLOCK (bit 2 in Byte 2 the SAT-specific SCSI extenstion in ATA Pass-through (0x85))
231 U8 (* scic_cb_stp_passthru_get_byteblock) ( void *);
233 * Function pointer to get the T_LENGTH (bits 0,1 in Byte 2 the SAT-specific SCSI extenstion in ATA Pass-through (0x85))
235 U8 (* scic_cb_stp_passthru_get_tlength) ( void *);
237 } SCIC_STP_PASSTHRU_REQUEST_CALLBACKS_T;
240 * @struct SCIC_SMP_PASSTHRU_REQUEST_CALLBACKS
241 * @brief This structure contains the pointer to the callback functions
242 * for constructing the passthrough request specific to SMP.
243 * This structure must be set by the win sci layer before the passthrough
247 typedef struct SCIC_SMP_PASSTHRU_REQUEST_CALLBACKS
250 * Common callbacks for all Passthru requests
252 SCIC_PASSTHRU_REQUEST_CALLBACKS_T common_callbacks;
255 * Function pointer to get the length of the smp request and its length
257 U32 (* scic_cb_smp_passthru_get_request) ( void *, U8 ** );
259 * Function pointer to get the frame type of the smp request
261 U8 (* scic_cb_smp_passthru_get_frame_type) ( void *);
263 * Function pointer to get the function in the smp request
265 U8 (* scic_cb_smp_passthru_get_function) ( void * );
268 * Function pointer to get the "allocated response length" in the smp request
270 U8 (* scic_cb_smp_passthru_get_allocated_response_length) ( void * );
272 } SCIC_SMP_PASSTHRU_REQUEST_CALLBACKS_T;
275 * @brief This enumeration specifies the transport protocol utilized
281 * This enumeration constant indicates that no protocol has yet been
287 * This enumeration constant indicates that the protocol utilized
288 * is the Serial Management Protocol.
293 * This enumeration constant indicates that the protocol utilized
294 * is the Serial SCSI Protocol.
299 * This enumeration constant indicates that the protocol utilized
300 * is the Serial-ATA Tunneling Protocol.
304 } SCIC_TRANSPORT_PROTOCOL;
308 * @brief This method simply returns the size required to build an SCI
309 * based IO request object.
311 * @return Return the size of the SCI IO request object.
313 U32 scic_io_request_get_object_size(
318 * @brief This method is called by the SCI user to construct all SCI Core
319 * IO requests. Memory initialization and functionality common to
320 * all IO request types is performed in this method.
322 * @note The SCI core implementation will create an association between
323 * the user IO request object and the core IO request object.
325 * @param[in] scic_controller the handle to the core controller object
326 * for which to build an IO request.
327 * @param[in] scic_remote_device the handle to the core remote device
328 * object for which to build an IO request.
329 * @param[in] io_tag This parameter specifies the IO tag to be associated
330 * with this request. If SCI_CONTROLLER_INVALID_IO_TAG is
331 * passed, then a copy of the request is built internally. The
332 * request will be copied into the actual controller request
333 * memory when the IO tag is allocated internally during the
334 * scic_controller_start_io() method.
335 * @param[in] user_io_request_object This parameter specifies the user
336 * IO request to be utilized during IO construction. This IO
337 * pointer will become the associated object for the core
339 * @param[in] scic_io_request_memory This parameter specifies the memory
340 * location to be utilized when building the core request.
341 * @param[out] new_scic_io_request_handle This parameter specifies a
342 * pointer to the handle the core will expect in further
343 * interactions with the core IO request object.
345 * @return Indicate if the controller successfully built the IO request.
346 * @retval SCI_SUCCESS This value is returned if the IO request was
347 * successfully built.
349 SCI_STATUS scic_io_request_construct(
350 SCI_CONTROLLER_HANDLE_T scic_controller,
351 SCI_REMOTE_DEVICE_HANDLE_T scic_remote_device,
353 void * user_io_request_object,
354 void * scic_io_request_memory,
355 SCI_IO_REQUEST_HANDLE_T * new_scic_io_request_handle
359 * @brief This method is called by the SCI user to build an SSP
363 * - The user must have previously called scic_io_request_construct()
364 * on the supplied IO request.
366 * @param[in] scic_io_request This parameter specifies the handle to the
367 * io request object to be built.
369 * @return Indicate if the controller successfully built the IO request.
370 * @retval SCI_SUCCESS This value is returned if the IO request was
371 * successfully built.
372 * @retval SCI_FAILURE_UNSUPPORTED_PROTOCOL This value is returned if the
373 * remote_device does not support the SSP protocol.
374 * @retval SCI_FAILURE_INVALID_ASSOCIATION This value is returned if the
375 * user did not properly set the association between the SCIC IO
376 * request and the user's IO request. Please refer to the
377 * sci_object_set_association() routine for more
380 SCI_STATUS scic_io_request_construct_basic_ssp(
381 SCI_IO_REQUEST_HANDLE_T scic_io_request
385 * @brief This method is called by the SCI user to build an SSP
386 * IO request with additional parameters that provide additional
387 * flexibility from the standard scic_io_request_construct_basic_ssp()
391 * - The user must have previously called scic_io_request_construct()
392 * on the supplied IO request.
394 * @param[in] scic_io_request This parameter specifies the handle to the
395 * io request object to be built.
396 * @param[in] io_parameters the additional parameter information to
397 * be added to the outgoing IO request.
399 * @return Indicate if the controller successfully built the IO request.
400 * @retval SCI_SUCCESS This value is returned if the IO request was
401 * successfully built.
402 * @retval SCI_FAILURE_UNSUPPORTED_PROTOCOL This value is returned if the
403 * remote_device does not support the SSP protocol.
404 * @retval SCI_FAILURE_INVALID_ASSOCIATION This value is returned if the
405 * user did not properly set the association between the SCIC IO
406 * request and the user's IO request. Please refer to the
407 * sci_object_set_association() routine for more
410 * @todo Determine the failure situations and return values.
412 SCI_STATUS scic_io_request_construct_advanced_ssp(
413 SCI_IO_REQUEST_HANDLE_T scic_io_request,
414 SCIC_IO_SSP_PARAMETERS_T * io_parameters
417 #if !defined(DISABLE_PASS_THROUGH)
420 * @brief This method will build an IO request based on the user information
421 * supplied in the pass-through IO request object.
423 * @param[in] scic_io_request This parameter specifies the handle to the
424 * io request object to be built.
426 * @param[in] ssp_passthru_cb This parameter specifies the pointer to
427 * the structure containing the callback to the function
428 * pointers to get the needed fields from the pass-through
429 * reqiest instead of SRB
431 * @return Indicate if the controller successfully built the IO request.
432 * @retval SCI_SUCCESS This value is returned if the IO request was
433 * successfully built.
434 * @retval SCI_FAILURE_INVALID_ASSOCIATION This value is returned if the
435 * user did not properly set the association between the SCIC IO
436 * request and the user's IO request. Please refer to the
437 * sci_object_set_association() routine for more
440 SCI_STATUS scic_io_request_construct_ssp_pass_through(
441 void * scic_io_request_memory,
442 SCIC_SSP_PASSTHRU_REQUEST_CALLBACKS_T *ssp_passthru_cb
445 #else // !defined(DISABLE_PASS_THROUGH)
447 #define scic_io_request_construct_ssp_pass_through(memory, cb) SCI_FAILURE
449 #endif // !defined(DISABLE_PASS_THROUGH)
452 * @brief This method is called by the SCI Core user to build an STP
456 * - The user must have previously called scic_io_request_construct()
457 * on the supplied IO request.
459 * @param[in] scic_io_request This parameter specifies the handle to the
460 * io request object to be built.
462 * @return Indicate if the controller successfully built the IO request.
463 * @retval SCI_SUCCESS This value is returned if the IO request was
464 * successfully built.
465 * @retval SCI_FAILURE_UNSUPPORTED_PROTOCOL This value is returned if the
466 * remote_device does not support the STP protocol.
467 * @retval SCI_FAILURE_INVALID_ASSOCIATION This value is returned if the
468 * user did not properly set the association between the SCIC IO
469 * request and the user's IO request. Please refer to the
470 * sci_object_set_association() routine for more
473 SCI_STATUS scic_io_request_construct_basic_sata(
474 SCI_IO_REQUEST_HANDLE_T scic_io_request
478 * @brief This method is called by the SCI Core user to build an STP
482 * - The user must have previously called scic_io_request_construct()
483 * on the supplied IO request.
485 * @param[in] scic_io_request This parameter specifies the handle to the
486 * io request object to be built.
488 * @return Indicate if the controller successfully built the IO request.
489 * @retval SCI_SUCCESS This value is returned if the IO request was
490 * successfully built.
491 * @retval SCI_FAILURE_UNSUPPORTED_PROTOCOL This value is returned if the
492 * remote_device does not support the STP protocol.
493 * @retval SCI_FAILURE_INVALID_ASSOCIATION This value is returned if the
494 * user did not properly set the association between the SCIC IO
495 * request and the user's IO request. Please refer to the
496 * sci_object_set_association() routine for more
499 SCI_STATUS scic_io_request_construct_advanced_sata(
500 SCI_IO_REQUEST_HANDLE_T scic_io_request,
501 SCIC_IO_SATA_PARAMETERS_T * io_parameters
504 #if !defined(DISABLE_PASS_THROUGH)
507 * @brief This method is called by the SCI user to build an STP pass-through
511 * - The user must have previously called scic_io_request_construct()
512 * on the supplied IO request.
514 * @param[in] scic_io_request This parameter specifies the handle to the
515 * io request object to be built.
517 * @param[in] passthru_cb This parameter specifies the pointer to the callback
518 * structure that contains the function pointers
520 * @return Indicate if the controller successfully built the IO request.
522 SCI_STATUS scic_io_request_construct_sata_pass_through(
523 SCI_IO_REQUEST_HANDLE_T scic_io_request,
524 SCIC_STP_PASSTHRU_REQUEST_CALLBACKS_T *passthru_cb
528 #else // !defined(DISABLE_PASS_THROUGH)
530 #define scic_io_request_construct_sata_pass_through(io, cb) SCI_FAILURE
532 #endif // !defined(DISABLE_PASS_THROUGH)
535 * @brief This method is called by the SCI user to build an SMP
539 * - The user must have previously called scic_io_request_construct()
540 * on the supplied IO request.
542 * @param[in] scic_io_request This parameter specifies the handle to the
543 * io request object to be built.
545 * @return Indicate if the controller successfully built the IO request.
546 * @retval SCI_SUCCESS This value is returned if the IO request was
547 * successfully built.
548 * @retval SCI_FAILURE_UNSUPPORTED_PROTOCOL This value is returned if the
549 * remote_device does not support the SMP protocol.
550 * @retval SCI_FAILURE_INVALID_ASSOCIATION This value is returned if the
551 * user did not properly set the association between the SCIC IO
552 * request and the user's IO request. Please refer to the
553 * sci_object_set_association() routine for more
556 SCI_STATUS scic_io_request_construct_smp(
557 SCI_IO_REQUEST_HANDLE_T scic_io_request
562 * @brief This method is called by the SCI user to build an SMP pass-through
566 * - The user must have previously called scic_io_request_construct()
567 * on the supplied IO request.
569 * @param[in] scic_smp_request This parameter specifies the handle to the
570 * io request object to be built.
572 * @param[in] passthru_cb This parameter specifies the pointer to the callback
573 * structure that contains the function pointers
575 * @return Indicate if the controller successfully built the IO request.
577 SCI_STATUS scic_io_request_construct_smp_pass_through(
578 SCI_IO_REQUEST_HANDLE_T scic_smp_request,
579 SCIC_SMP_PASSTHRU_REQUEST_CALLBACKS_T *passthru_cb
583 * @brief This method returns the controller specific IO/Task request status.
584 * These status values are unique to the specific controller being
585 * managed by the SCIC.
587 * @param[in] io_request the handle to the IO or task management request
588 * object for which to retrieve the status.
590 * @return This method returns a value indicating the controller specific
593 U32 scic_request_get_controller_status(
594 SCI_IO_REQUEST_HANDLE_T io_request
598 * @brief This method returns the user specific IO/Task request status.
600 * @param[in] io_request the handle to the IO or task management request
601 * object for which to retrieve the status.
603 * @return This method returns a value indicating the user specific
606 U32 scic_request_get_sci_status(
607 SCI_IO_REQUEST_HANDLE_T io_request
612 * @brief This method will return the address to the command information
615 * @param[in] scic_io_request This parameter specifies the handle to the
616 * io request object to be built.
618 * @return The address of the SSP/SMP command information unit.
620 void * scic_io_request_get_command_iu_address(
621 SCI_IO_REQUEST_HANDLE_T scic_io_request
625 * @brief This method will return the address to the response information
626 * unit. For an SSP request this buffer is only valid if the IO
627 * request is completed with the status SCI_FAILURE_IO_RESPONSE_VALID.
629 * @param[in] scic_io_request This parameter specifies the handle to the
630 * io request object to be built.
632 * @return The address of the SSP/SMP response information unit.
634 void * scic_io_request_get_response_iu_address(
635 SCI_IO_REQUEST_HANDLE_T scic_io_request
639 * @brief This method will return the IO tag utilized by the IO request.
641 * @param[in] scic_io_request This parameter specifies the handle to the
642 * io request object for which to return the IO tag.
644 * @return An unsigned integer representing the IO tag being utilized.
645 * @retval SCI_CONTROLLER_INVALID_IO_TAG This value is returned if the IO
646 * does not currently have an IO tag allocated to it.
647 * @retval All return other values indicate a legitimate tag.
649 U16 scic_io_request_get_io_tag(
650 SCI_IO_REQUEST_HANDLE_T scic_io_request
654 * @brief This method will inform the user of the protocol with which
655 * the supplied IO request was created.
657 * @param[in] scic_io_request This parameter specifies the IO request
658 * for which to retrieve the protocol.
660 * @return This method returns the transport protocol utilized for the
661 * the supplied request. Please refer to SCIC_TRANSPORT_PROTOCOL
662 * for more information.
664 SCIC_TRANSPORT_PROTOCOL scic_io_request_get_protocol(
665 SCI_IO_REQUEST_HANDLE_T scic_io_request
669 * @brief This method will assign an NCQ tag to the io request object. The
670 * caller of this function must make sure that only valid NCQ tags are
671 * assigned to the io request object.
673 * @param[in] scic_io_request This parameter specifies the handle to the
674 * io request object to which to assign the ncq tag.
675 * @param[in] ncq_tag This parameter specifies the NCQ tag to be utilized
676 * for the supplied core IO request. It is up to the user to make
677 * sure that this is a valid NCQ tag.
681 * @note This function is only valid for SATA NCQ requests.
683 void scic_stp_io_request_set_ncq_tag(
684 SCI_IO_REQUEST_HANDLE_T scic_io_request,
689 * @brief This method will return the address of the host to device register
690 * fis region for the io request object.
692 * @param[in] scic_io_request This parameter specifies the handle to the io
693 * request object from which to get the host to device register fis
696 * @return The address of the host to device register fis buffer in the io
699 * @note This function is only valid for SATA requests.
701 void * scic_stp_io_request_get_h2d_reg_address(
702 SCI_IO_REQUEST_HANDLE_T scic_io_request
706 * @brief This method will return the address of the device to host register
707 * fis region for the io request object.
709 * @param[in] scic_io_request This parameter specifies the handle to the io
710 * request object from which to get the device to host register fis
713 * @return The address fo the device to host register fis ending the io
716 * @note This function is only valid for SATA requests.
718 void * scic_stp_io_request_get_d2h_reg_address(
719 SCI_IO_REQUEST_HANDLE_T scic_io_request
723 * @brief This method will return the rx frame for the io request object that
724 * contains the given offset.
726 * @param[in] scic_io_request This parameter specifies the handle to the io
727 * request object which has received the frame data.
728 * @param[in] offset This parameter specifies which frame is being requested.
730 * @return The return is a pointer to the frame buffer data.
732 * @note Frame buffers are only 1024 bytes in size. Reading past the end of a
733 * frame will have unexpected results.
735 void * scic_io_request_get_rx_frame(
736 SCI_IO_REQUEST_HANDLE_T scic_io_request,
741 * @brief This method will return the number of bytes transferred from the SCU
743 * @param[in] scic_io_request This parameter specifies the handle to the io request
744 * whose data length was not eqaul to the data length specified in the request.
745 * When the driver gets an early io completion status from the hardware,
746 * this routine should be called to get the actual number of bytes transferred
748 * @return The return is the number of bytes transferred when the data legth is not equal to
749 * the specified length in the io request
752 U32 scic_io_request_get_number_of_bytes_transferred (
753 SCI_IO_REQUEST_HANDLE_T scic_io_request
758 #endif // __cplusplus
760 #endif // _SCIC_IO_REQUEST_H_