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/*-
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
* The full GNU General Public License is included in this distribution
* in the file called LICENSE.GPL.
*
* BSD LICENSE
*
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
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* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* $FreeBSD: release/9.1.0/sys/dev/isci/scil/scic_io_request.h 231689 2012-02-14 15:58:49Z jimharris $
*/
#ifndef _SCIC_IO_REQUEST_H_
#define _SCIC_IO_REQUEST_H_
/**
* @file
*
* @brief This file contains the structures and interface methods that
* can be referenced and used by the SCI user for the SCI IO request
* object.
*
* @todo Determine the failure situations and return values.
*/
#ifdef __cplusplus
extern "C" {
#endif // __cplusplus
#include <dev/isci/scil/sci_types.h>
#include <dev/isci/scil/sci_status.h>
#include <dev/isci/scil/intel_sas.h>
/**
* @struct SCIC_IO_SSP_PARAMETERS
* @brief This structure contains additional optional parameters for SSP
* IO requests. These parameters are utilized with the
* scic_io_request_construct_advanced_ssp() method.
*
* @todo Add Block-guard/DIF, TLR
*/
typedef struct SCIC_IO_SSP_PARAMETERS
{
/**
* Data Integrity Format (DIF) is also known as protection information
* or block-guard. This sub-structure contains DIF specific feature
* information for SSP IO requests.
*/
struct
{
void * placeholder;
} dif;
/**
* Transport Layer Retries (TLR) is an SSP protocol specific feature.
* This sub-structure contains Transport Layer Retries (TLR) specific
* feature information for SSP IO requests.
*/
struct
{
void * placeholder;
} tlr;
} SCIC_IO_SSP_PARAMETERS_T;
/**
* @struct SCIC_IO_PARAMETERS
* @brief This structure contains additional optional parameters for
* STP/SATA IO requests. These parameters are utilized with the
* scic_io_request_construct_advanced_sata() method.
*/
typedef struct SCIC_IO_SATA_PARAMETERS
{
/**
* This field indicates whether or not to construct the Scatter-Gather
* List elements for the SATA request. This is used in scenarios
* where Scatter-gather-list processing/translation is done by the
* user.
*/
BOOL do_translate_sgl;
} SCIC_IO_SATA_PARAMETERS_T;
/**
* @struct SCIC_PASSTHRU_REQUEST_CALLBACKS
* @brief This structure contains the pointer to the callback functions
* for constructing the passthrough request common to SSP, SMP and STP.
* This structure must be set by the win sci layer before the passthrough
* build is called
*
*/
typedef struct SCIC_PASSTHRU_REQUEST_CALLBACKS
{
/**
* Function pointer to get the phy identifier for passthrough request.
*/
U32 (*scic_cb_passthru_get_phy_identifier) ( void * , U8 *);
/**
* Function pointer to get the port identifier for passthrough request.
*/
U32 (*scic_cb_passthru_get_port_identifier) ( void * , U8 *);
/**
* Function pointer to get the connection rate for passthrough request.
*/
U32 (*scic_cb_passthru_get_connection_rate) ( void * , void *);
/**
* Function pointer to get the destination sas address for passthrough request.
*/
void (*scic_cb_passthru_get_destination_sas_address) (void *, U8 **);
/**
* Function pointer to get the transfer length for passthrough request.
*/
U32 (*scic_cb_passthru_get_transfer_length) (void *);
/**
* Function pointer to get the data direction for passthrough request.
*/
U32 (*scic_cb_passthru_get_data_direction) (void *);
} SCIC_PASSTHRU_REQUEST_CALLBACKS_T;
/**
* @struct SCIC_SSP_PASSTHRU_REQUEST_CALLBACKS
* @brief This structure contains the pointer to the callback functions
* for constructing the passthrough request specific to SSP.
* This structure must be set by the win sci layer before the passthrough
* build is called
*
*/
typedef struct SCIC_SSP_PASSTHRU_REQUEST_CALLBACKS
{
/**
* Common callbacks for all Passthru requests
*/
SCIC_PASSTHRU_REQUEST_CALLBACKS_T common_callbacks;
/**
* Function pointer to get the lun for passthrough request.
*/
void (* scic_cb_ssp_passthru_get_lun) (void *, U8 **);
/**
* Function pointer to get the cdb
*/
void (* scic_cb_ssp_passthru_get_cdb) ( void *, U32 *, U8 **, U32 *, U8 ** );
/**
* Function pointer to get the task attribute for passthrough request.
*/
U32 (*scic_cb_ssp_passthru_get_task_attribute) (void *);
} SCIC_SSP_PASSTHRU_REQUEST_CALLBACKS_T;
/**
* @struct SCIC_STP_PASSTHRU_REQUEST_CALLBACKS
* @brief This structure contains the pointer to the callback functions
* for constructing the passthrough request specific to STP.
* This structure must be set by the win sci layer before the passthrough
* build is called
*
*/
typedef struct SCIC_STP_PASSTHRU_REQUEST_CALLBACKS
{
/**
* Common callbacks for all Passthru requests
*/
SCIC_PASSTHRU_REQUEST_CALLBACKS_T common_callbacks;
/**
* Function pointer to get the protocol for passthrough request.
*/
U8 (* scic_cb_stp_passthru_get_protocol) (void *);
/**
* Function pointer to get the resgister fis
*/
void (* scic_cb_stp_passthru_get_register_fis) ( void *, U8 ** );
/**
* 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))
*/
U8 (* scic_cb_stp_passthru_get_multiplecount) ( void *);
/**
* Function pointer to get the EXTEND (bit 0 in Byte 1 the SAT-specific SCSI extenstion in ATA Pass-through (0x85))
*/
U8 (* scic_cb_stp_passthru_get_extend) ( void *);
/**
* Function pointer to get the CK_COND (bit 5 in Byte 2 the SAT-specific SCSI extenstion in ATA Pass-through (0x85))
*/
U8 (* scic_cb_stp_passthru_get_ckcond) ( void *);
/**
* Function pointer to get the T_DIR (bit 3 in Byte 2 the SAT-specific SCSI extenstion in ATA Pass-through (0x85))
*/
U8 (* scic_cb_stp_passthru_get_tdir) ( void *);
/**
* Function pointer to get the BYTE_BLOCK (bit 2 in Byte 2 the SAT-specific SCSI extenstion in ATA Pass-through (0x85))
*/
U8 (* scic_cb_stp_passthru_get_byteblock) ( void *);
/**
* Function pointer to get the T_LENGTH (bits 0,1 in Byte 2 the SAT-specific SCSI extenstion in ATA Pass-through (0x85))
*/
U8 (* scic_cb_stp_passthru_get_tlength) ( void *);
} SCIC_STP_PASSTHRU_REQUEST_CALLBACKS_T;
/**
* @struct SCIC_SMP_PASSTHRU_REQUEST_CALLBACKS
* @brief This structure contains the pointer to the callback functions
* for constructing the passthrough request specific to SMP.
* This structure must be set by the win sci layer before the passthrough
* build is called
*
*/
typedef struct SCIC_SMP_PASSTHRU_REQUEST_CALLBACKS
{
/**
* Common callbacks for all Passthru requests
*/
SCIC_PASSTHRU_REQUEST_CALLBACKS_T common_callbacks;
/**
* Function pointer to get the length of the smp request and its length
*/
U32 (* scic_cb_smp_passthru_get_request) ( void *, U8 ** );
/**
* Function pointer to get the frame type of the smp request
*/
U8 (* scic_cb_smp_passthru_get_frame_type) ( void *);
/**
* Function pointer to get the function in the the smp request
*/
U8 (* scic_cb_smp_passthru_get_function) ( void * );
/**
* Function pointer to get the "allocated response length" in the the smp request
*/
U8 (* scic_cb_smp_passthru_get_allocated_response_length) ( void * );
} SCIC_SMP_PASSTHRU_REQUEST_CALLBACKS_T;
/**
* @brief This enumeration specifies the transport protocol utilized
* for the request.
*/
typedef enum
{
/**
* This enumeration constant indicates that no protocol has yet been
* set.
*/
SCIC_NO_PROTOCOL,
/**
* This enumeration constant indicates that the protocol utilized
* is the Serial Management Protocol.
*/
SCIC_SMP_PROTOCOL,
/**
* This enumeration constant indicates that the protocol utilized
* is the Serial SCSI Protocol.
*/
SCIC_SSP_PROTOCOL,
/**
* This enumeration constant indicates that the protocol utilized
* is the Serial-ATA Tunneling Protocol.
*/
SCIC_STP_PROTOCOL
} SCIC_TRANSPORT_PROTOCOL;
/**
* @brief This method simply returns the size required to build an SCI
* based IO request object.
*
* @return Return the size of the SCI IO request object.
*/
U32 scic_io_request_get_object_size(
void
);
/**
* @brief This method is called by the SCI user to construct all SCI Core
* IO requests. Memory initialization and functionality common to
* all IO request types is performed in this method.
*
* @note The SCI core implementation will create an association between
* the user IO request object and the core IO request object.
*
* @param[in] scic_controller the handle to the core controller object
* for which to build an IO request.
* @param[in] scic_remote_device the handle to the core remote device
* object for which to build an IO request.
* @param[in] io_tag This parameter specifies the IO tag to be associated
* with this request. If SCI_CONTROLLER_INVALID_IO_TAG is
* passed, then a copy of the request is built internally. The
* request will be copied into the actual controller request
* memory when the IO tag is allocated internally during the
* scic_controller_start_io() method.
* @param[in] user_io_request_object This parameter specifies the user
* IO request to be utilized during IO construction. This IO
* pointer will become the associated object for the core
* IO request object.
* @param[in] scic_io_request_memory This parameter specifies the memory
* location to be utilized when building the core request.
* @param[out] new_scic_io_request_handle This parameter specifies a
* pointer to the handle the core will expect in further
* interactions with the core IO request object.
*
* @return Indicate if the controller successfully built the IO request.
* @retval SCI_SUCCESS This value is returned if the IO request was
* successfully built.
*/
SCI_STATUS scic_io_request_construct(
SCI_CONTROLLER_HANDLE_T scic_controller,
SCI_REMOTE_DEVICE_HANDLE_T scic_remote_device,
U16 io_tag,
void * user_io_request_object,
void * scic_io_request_memory,
SCI_IO_REQUEST_HANDLE_T * new_scic_io_request_handle
);
/**
* @brief This method is called by the SCI user to build an SSP
* IO request.
*
* @pre
* - The user must have previously called scic_io_request_construct()
* on the supplied IO request.
*
* @param[in] scic_io_request This parameter specifies the handle to the
* io request object to be built.
*
* @return Indicate if the controller successfully built the IO request.
* @retval SCI_SUCCESS This value is returned if the IO request was
* successfully built.
* @retval SCI_FAILURE_UNSUPPORTED_PROTOCOL This value is returned if the
* remote_device does not support the SSP protocol.
* @retval SCI_FAILURE_INVALID_ASSOCIATION This value is returned if the
* user did not properly set the association between the SCIC IO
* request and the user's IO request. Please refer to the
* sci_object_set_association() routine for more
* information.
*/
SCI_STATUS scic_io_request_construct_basic_ssp(
SCI_IO_REQUEST_HANDLE_T scic_io_request
);
/**
* @brief This method is called by the SCI user to build an SSP
* IO request with additional parameters that provide additional
* flexibility from the standard scic_io_request_construct_basic_ssp()
* method.
*
* @pre
* - The user must have previously called scic_io_request_construct()
* on the supplied IO request.
*
* @param[in] scic_io_request This parameter specifies the handle to the
* io request object to be built.
* @param[in] io_parameters the additional parameter information to
* be added to the outgoing IO request.
*
* @return Indicate if the controller successfully built the IO request.
* @retval SCI_SUCCESS This value is returned if the IO request was
* successfully built.
* @retval SCI_FAILURE_UNSUPPORTED_PROTOCOL This value is returned if the
* remote_device does not support the SSP protocol.
* @retval SCI_FAILURE_INVALID_ASSOCIATION This value is returned if the
* user did not properly set the association between the SCIC IO
* request and the user's IO request. Please refer to the
* sci_object_set_association() routine for more
* information.
*
* @todo Determine the failure situations and return values.
*/
SCI_STATUS scic_io_request_construct_advanced_ssp(
SCI_IO_REQUEST_HANDLE_T scic_io_request,
SCIC_IO_SSP_PARAMETERS_T * io_parameters
);
#if !defined(DISABLE_PASS_THROUGH)
/**
* @brief This method will build an IO request based on the user information
* supplied in the pass-through IO request object.
*
* @param[in] scic_io_request This parameter specifies the handle to the
* io request object to be built.
*
* @param[in] ssp_passthru_cb This parameter specifies the pointer to
* the structure containing the callback to the function
* pointers to get the needed fields from the pass-through
* reqiest instead of SRB
*
* @return Indicate if the controller successfully built the IO request.
* @retval SCI_SUCCESS This value is returned if the IO request was
* successfully built.
* @retval SCI_FAILURE_INVALID_ASSOCIATION This value is returned if the
* user did not properly set the association between the SCIC IO
* request and the user's IO request. Please refer to the
* sci_object_set_association() routine for more
* information.
*/
SCI_STATUS scic_io_request_construct_ssp_pass_through(
void * scic_io_request_memory,
SCIC_SSP_PASSTHRU_REQUEST_CALLBACKS_T *ssp_passthru_cb
);
#else // !defined(DISABLE_PASS_THROUGH)
#define scic_io_request_construct_ssp_pass_through(memory, cb) SCI_FAILURE
#endif // !defined(DISABLE_PASS_THROUGH)
/**
* @brief This method is called by the SCI Core user to build an STP
* IO request.
*
* @pre
* - The user must have previously called scic_io_request_construct()
* on the supplied IO request.
*
* @param[in] scic_io_request This parameter specifies the handle to the
* io request object to be built.
*
* @return Indicate if the controller successfully built the IO request.
* @retval SCI_SUCCESS This value is returned if the IO request was
* successfully built.
* @retval SCI_FAILURE_UNSUPPORTED_PROTOCOL This value is returned if the
* remote_device does not support the STP protocol.
* @retval SCI_FAILURE_INVALID_ASSOCIATION This value is returned if the
* user did not properly set the association between the SCIC IO
* request and the user's IO request. Please refer to the
* sci_object_set_association() routine for more
* information.
*/
SCI_STATUS scic_io_request_construct_basic_sata(
SCI_IO_REQUEST_HANDLE_T scic_io_request
);
/**
* @brief This method is called by the SCI Core user to build an STP
* IO request.
*
* @pre
* - The user must have previously called scic_io_request_construct()
* on the supplied IO request.
*
* @param[in] scic_io_request This parameter specifies the handle to the
* io request object to be built.
*
* @return Indicate if the controller successfully built the IO request.
* @retval SCI_SUCCESS This value is returned if the IO request was
* successfully built.
* @retval SCI_FAILURE_UNSUPPORTED_PROTOCOL This value is returned if the
* remote_device does not support the STP protocol.
* @retval SCI_FAILURE_INVALID_ASSOCIATION This value is returned if the
* user did not properly set the association between the SCIC IO
* request and the user's IO request. Please refer to the
* sci_object_set_association() routine for more
* information.
*/
SCI_STATUS scic_io_request_construct_advanced_sata(
SCI_IO_REQUEST_HANDLE_T scic_io_request,
SCIC_IO_SATA_PARAMETERS_T * io_parameters
);
#if !defined(DISABLE_PASS_THROUGH)
/**
* @brief This method is called by the SCI user to build an STP pass-through
* IO request.
*
* @pre
* - The user must have previously called scic_io_request_construct()
* on the supplied IO request.
*
* @param[in] scic_io_request This parameter specifies the handle to the
* io request object to be built.
*
* @param[in] passthru_cb This parameter specifies the pointer to the callback
* structure that contains the function pointers
*
* @return Indicate if the controller successfully built the IO request.
*/
SCI_STATUS scic_io_request_construct_sata_pass_through(
SCI_IO_REQUEST_HANDLE_T scic_io_request,
SCIC_STP_PASSTHRU_REQUEST_CALLBACKS_T *passthru_cb
);
#else // !defined(DISABLE_PASS_THROUGH)
#define scic_io_request_construct_sata_pass_through(io, cb) SCI_FAILURE
#endif // !defined(DISABLE_PASS_THROUGH)
/**
* @brief This method is called by the SCI user to build an SMP
* IO request.
*
* @pre
* - The user must have previously called scic_io_request_construct()
* on the supplied IO request.
*
* @param[in] scic_io_request This parameter specifies the handle to the
* io request object to be built.
*
* @return Indicate if the controller successfully built the IO request.
* @retval SCI_SUCCESS This value is returned if the IO request was
* successfully built.
* @retval SCI_FAILURE_UNSUPPORTED_PROTOCOL This value is returned if the
* remote_device does not support the SMP protocol.
* @retval SCI_FAILURE_INVALID_ASSOCIATION This value is returned if the
* user did not properly set the association between the SCIC IO
* request and the user's IO request. Please refer to the
* sci_object_set_association() routine for more
* information.
*/
SCI_STATUS scic_io_request_construct_smp(
SCI_IO_REQUEST_HANDLE_T scic_io_request
);
/**
* @brief This method is called by the SCI user to build an SMP pass-through
* IO request.
*
* @pre
* - The user must have previously called scic_io_request_construct()
* on the supplied IO request.
*
* @param[in] scic_smp_request This parameter specifies the handle to the
* io request object to be built.
*
* @param[in] passthru_cb This parameter specifies the pointer to the callback
* structure that contains the function pointers
*
* @return Indicate if the controller successfully built the IO request.
*/
SCI_STATUS scic_io_request_construct_smp_pass_through(
SCI_IO_REQUEST_HANDLE_T scic_smp_request,
SCIC_SMP_PASSTHRU_REQUEST_CALLBACKS_T *passthru_cb
);
/**
* @brief This method returns the controller specific IO/Task request status.
* These status values are unique to the specific controller being
* managed by the SCIC.
*
* @param[in] io_request the handle to the IO or task management request
* object for which to retrieve the status.
*
* @return This method returns a value indicating the controller specific
* request status.
*/
U32 scic_request_get_controller_status(
SCI_IO_REQUEST_HANDLE_T io_request
);
/**
* @brief This method returns the user specific IO/Task request status.
*
* @param[in] io_request the handle to the IO or task management request
* object for which to retrieve the status.
*
* @return This method returns a value indicating the user specific
* request status.
*/
U32 scic_request_get_sci_status(
SCI_IO_REQUEST_HANDLE_T io_request
);
/**
* @brief This method will return the address to the command information
* unit.
*
* @param[in] scic_io_request This parameter specifies the handle to the
* io request object to be built.
*
* @return The address of the SSP/SMP command information unit.
*/
void * scic_io_request_get_command_iu_address(
SCI_IO_REQUEST_HANDLE_T scic_io_request
);
/**
* @brief This method will return the address to the response information
* unit. For an SSP request this buffer is only valid if the IO
* request is completed with the status SCI_FAILURE_IO_RESPONSE_VALID.
*
* @param[in] scic_io_request This parameter specifies the handle to the
* io request object to be built.
*
* @return The address of the SSP/SMP response information unit.
*/
void * scic_io_request_get_response_iu_address(
SCI_IO_REQUEST_HANDLE_T scic_io_request
);
/**
* @brief This method will return the IO tag utilized by the IO request.
*
* @param[in] scic_io_request This parameter specifies the handle to the
* io request object for which to return the IO tag.
*
* @return An unsigned integer representing the IO tag being utilized.
* @retval SCI_CONTROLLER_INVALID_IO_TAG This value is returned if the IO
* does not currently have an IO tag allocated to it.
* @retval All return other values indicate a legitimate tag.
*/
U16 scic_io_request_get_io_tag(
SCI_IO_REQUEST_HANDLE_T scic_io_request
);
/**
* @brief This method will inform the user of the protocol with which
* the supplied IO request was created.
*
* @param[in] scic_io_request This parameter specifies the IO request
* for which to retrieve the protocol.
*
* @return This method returns the transport protocol utilized for the
* the supplied request. Please refer to SCIC_TRANSPORT_PROTOCOL
* for more information.
*/
SCIC_TRANSPORT_PROTOCOL scic_io_request_get_protocol(
SCI_IO_REQUEST_HANDLE_T scic_io_request
);
/**
* @brief This method will assign an NCQ tag to the io request object. The
* caller of this function must make sure that only valid NCQ tags are
* assigned to the io request object.
*
* @param[in] scic_io_request This parameter specifies the handle to the
* io request object to which to assign the ncq tag.
* @param[in] ncq_tag This parameter specifies the NCQ tag to be utilized
* for the supplied core IO request. It is up to the user to make
* sure that this is a valid NCQ tag.
*
* @return none
*
* @note This function is only valid for SATA NCQ requests.
*/
void scic_stp_io_request_set_ncq_tag(
SCI_IO_REQUEST_HANDLE_T scic_io_request,
U16 ncq_tag
);
/**
* @brief This method will return the address of the host to device register
* fis region for the io request object.
*
* @param[in] scic_io_request This parameter specifies the handle to the io
* request object from which to get the host to device register fis
* buffer.
*
* @return The address of the host to device register fis buffer in the io
* request object.
*
* @note This function is only valid for SATA requests.
*/
void * scic_stp_io_request_get_h2d_reg_address(
SCI_IO_REQUEST_HANDLE_T scic_io_request
);
/**
* @brief This method will return the address of the device to host register
* fis region for the io request object.
*
* @param[in] scic_io_request This parameter specifies teh handle to the io
* request object from which to get the device to host register fis
* buffer.
*
* @return The address fo the device to host register fis ending the io
* request.
*
* @note This function is only valid for SATA requests.
*/
void * scic_stp_io_request_get_d2h_reg_address(
SCI_IO_REQUEST_HANDLE_T scic_io_request
);
/**
* @brief This method will return the rx frame for the io request object that
* contains the given offset.
*
* @param[in] scic_io_request This parameter specifies the handle to the io
* request object which has received the frame data.
* @param[in] offset This parameter specifies which frame is being requested.
*
* @return The return is a pointer to the frame buffer data.
*
* @note Frame buffers are only 1024 bytes in size. Reading past the end of a
* frame will have unexpected results.
*/
void * scic_io_request_get_rx_frame(
SCI_IO_REQUEST_HANDLE_T scic_io_request,
U32 offset
);
/**
* @brief This method will return the number of bytes transferred from the SCU
*
* @param[in] scic_io_request This parameter specifies the handle to the io request
* whose data length was not eqaul to the data length specified in the request.
* When the driver gets an early io completion status from the hardware,
* this routine should be called to get the actual number of bytes transferred
*
* @return The return is the number of bytes transferred when the data legth is not equal to
* the specified length in the io request
*
*/
U32 scic_io_request_get_number_of_bytes_transferred (
SCI_IO_REQUEST_HANDLE_T scic_io_request
);
#ifdef __cplusplus
}
#endif // __cplusplus
#endif // _SCIC_IO_REQUEST_H_