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/*-
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*
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
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* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
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* 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.
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* in the file called LICENSE.GPL.
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* modification, are permitted provided that the following conditions
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* $FreeBSD: release/9.1.0/sys/dev/isci/scil/scif_controller.h 231689 2012-02-14 15:58:49Z jimharris $
*/
#ifndef _SCIF_CONTROLLER_H_
#define _SCIF_CONTROLLER_H_
/**
* @file
*
* @brief This file contains all of the interface methods that can be called
* by an SCIF user on a SCIF controller object.
*/
#ifdef __cplusplus
extern "C" {
#endif // __cplusplus
#include <dev/isci/scil/sci_types.h>
#include <dev/isci/scil/sci_status.h>
/**
* @brief This method will attempt to construct a framework controller object
* utilizing the supplied parameter information.
*
* @param[in] library This parameter specifies the handle to the framework
* library object associated with the controller being constructed.
* @param[in] controller This parameter specifies the framework controller to
* be constructed.
* @param[in] user_object This parameter is a reference to the SCIL users
* controller object and will be used to associate with the
* framework controller.
*
* @return Indicate if the controller was successfully constructed or if
* it failed in some way.
* @retval SCI_SUCCESS This value is returned if the controller was
* successfully constructed.
* @retval SCI_FAILURE_UNSUPPORTED_INIT_DATA_VERSION This value is returned
* if the controller does not support the supplied oem parameter
* data version.
* @retval SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION This value is returned
* if the controller doesn't support the port configuration scheme
* (APC or MPC).
*/
SCI_STATUS scif_controller_construct(
SCI_LIBRARY_HANDLE_T library,
SCI_CONTROLLER_HANDLE_T controller,
void * user_object
);
/**
* @brief This method will initialize the SCI Framework controller object.
* This includes initialization of the associated core controller.
*
* @param[in] controller This parameter specifies the controller to be
* initialized.
*
* @return Indicate if the controller was successfully initialized or if
* it failed in some way.
* @retval SCI_SUCCESS This value is returned if the controller hardware
* was successfully initialized.
*/
SCI_STATUS scif_controller_initialize(
SCI_CONTROLLER_HANDLE_T controller
);
/**
* @brief This method returns the suggested scif_controller_start()
* timeout amount. The user is free to use any timeout value,
* but this method provides the suggested minimum start timeout
* value. The returned value is based upon empirical information
* determined as a result of interoperability testing.
*
* @param[in] controller the handle to the controller object for which
* to return the suggested start timeout.
*
* @return This method returns the number of milliseconds for the
* suggested start operation timeout.
*/
U32 scif_controller_get_suggested_start_timeout(
SCI_CONTROLLER_HANDLE_T controller
);
/**
* @brief This method will start the SCIF controller. The SCI User completion
* callback is called when the following conditions are met:
* -# the return status of this method is SCI_SUCCESS.
* -# after all of the phys have successfully started or been given
* the opportunity to start.
*
* @pre The controller must be in the INITIALIZED or STARTED state.
*
* @param[in] controller the handle to the controller object to start.
* @param[in] timeout This parameter specifies the number of milliseconds
* in which the start operation should complete.
*
* @return Indicate if the controller start method succeeded or failed in
* some way.
* @retval SCI_SUCCESS if the start operation succeeded.
* @retval SCI_WARNING_ALREADY_IN_STATE if the controller is already in
* the STARTED state.
* @retval SCI_FAILURE_INVALID_STATE if the controller is not either in
* the INITIALIZED or STARTED states.
* @retval SCI_FAILURE_INVALID_MEMORY_DESCRIPTOR if there are
* inconsistent or invalid values in the supplied
* SCI_PHYSICAL_MEMORY_DESCRIPTOR array.
* @retval SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION This value is
* returned if the phy to port allocation cannot be supported.
*
* @see For additional information please refer to: scic_controller_start()
*/
SCI_STATUS scif_controller_start(
SCI_CONTROLLER_HANDLE_T controller,
U32 timeout
);
/**
* @brief This method will stop an individual framework controller object. This
* includes quiescing IOs, releasing affiliations, and other shutdown
* related operations. This method will invoke the associated user
* callback upon completion. The completion callback is called when
* the following conditions are met:
* -# the method return status is SCI_SUCCESS.
* -# the controller has been quiesced.
* This method will ensure that all framework IO requests are quiesced
* and any additional framework operations are halted.
*
* @pre The controller must be in the STARTED or STOPPED state.
*
* @param[in] controller the handle to the controller object to stop.
* @param[in] timeout This parameter specifies the number of milliseconds
* in which the stop operation should complete.
*
* @return Indicate if the controller stop method succeeded or failed in
* some way.
* @retval SCI_SUCCESS if the stop operation successfully began.
* @retval SCI_WARNING_ALREADY_IN_STATE if the controller is already in
* the STOPPED state.
* @retval SCI_FAILURE_INVALID_STATE if the controller is not either in
* the STARTED or STOPPED states.
*
* @see For additional information please refer to: scic_controller_stop()
*/
SCI_STATUS scif_controller_stop(
SCI_CONTROLLER_HANDLE_T controller,
U32 timeout
);
/**
* @brief This method will reset the supplied framework controller regardless
* of the state of said controller. This operation is considered
* destructive. Outstanding IO requests are not aborted or completed
* at the actual remote device. However, the framework will
* manufacture completion callbacks to the OS driver for the IO
* requests.
*
* @param[in] controller the handle to the controller object to reset.
*
* @return Indicate if the controller reset method succeeded or failed in
* some way.
* @retval SCI_SUCCESS if the reset operation successfully started.
* @retval SCI_FATAL_ERROR if the controller reset operation is unable to
* complete.
*
* @see For additional information please refer to: scic_controller_reset()
*/
SCI_STATUS scif_controller_reset(
SCI_CONTROLLER_HANDLE_T controller
);
/**
* @brief This method returns the SCI Core controller handle associated
* with this controller.
*
* @param[in] scif_controller the handle to the controller object for which
* to retrieve the core specific controller handle
*
* @return Return the SCI core controller handle associated with the supplied
* framework controller.
*/
SCI_CONTROLLER_HANDLE_T scif_controller_get_scic_handle(
SCI_CONTROLLER_HANDLE_T scif_controller
);
/**
* @brief This method is called by the SCIF user to send/start a framework
* IO request.
*
* @param[in] controller the handle to the controller object for which
* to start an IO request.
* @param[in] remote_device the handle to the remote device object for which
* to start an IO request.
* @param[in] io_request the handle to the io request object to start.
* @param[in] io_tag This parameter specifies a previously allocated IO tag
* that the user desires to be utilized for this request.
* This parameter is optional. The user is allowed to supply
* SCI_CONTROLLER_INVALID_IO_TAG as the value for this parameter.
* @see scic_controller_allocate_tag() for more information
* on allocating a tag.
*
* @return Indicate if the controller successfully started the IO request.
* @retval SCI_IO_SUCCESS if the IO request was successfully started.
*
* @see For additional information please refer to: scic_controller_start_io()
*
* @todo Determine the failure situations and return values.
*/
SCI_IO_STATUS scif_controller_start_io(
SCI_CONTROLLER_HANDLE_T controller,
SCI_REMOTE_DEVICE_HANDLE_T remote_device,
SCI_IO_REQUEST_HANDLE_T io_request,
U16 io_tag
);
/**
* @brief This method is called by the SCIF user to send/start a framework
* task management request.
*
* @param[in] controller the handle to the controller object for which
* to start the task management request.
* @param[in] remote_device the handle to the remote device object for which
* to start the task management request.
* @param[in] task_request the handle to the task request object to start.
* @param[in] io_tag This parameter specifies a previously allocated IO tag
* that the user desires to be utilized for this request. Note
* this not the io_tag of the request being managed. It is to
* be utilized for the task request itself.
* This parameter is optional. The user is allowed to supply
* SCI_CONTROLLER_INVALID_IO_TAG as the value for this parameter.
* @see scic_controller_allocate_tag() for more information
* on allocating a tag.
*
* @return Indicate if the controller successfully started the IO request.
* @retval SCI_TASK_SUCCESS if the task request was successfully started.
*
* @see For additional information please refer to: scic_controller_start_task()
*
* @todo Determine the failure situations and return values.
*/
SCI_TASK_STATUS scif_controller_start_task(
SCI_CONTROLLER_HANDLE_T controller,
SCI_REMOTE_DEVICE_HANDLE_T remote_device,
SCI_TASK_REQUEST_HANDLE_T task_request,
U16 io_tag
);
/**
* @brief This method is called by the SCI user to complete a previously
* started IO request. After this method is invoked, the user should
* consider the IO request as invalid until it is properly reused
* (i.e. re-constructed).
*
* @param[in] controller The handle to the controller object for which
* to complete the IO request.
* @param[in] remote_device The handle to the remote device object for which
* to complete the IO request.
* @param[in] io_request the handle to the io request object to complete.
*
* @return Indicate if the controller successfully completed the IO request.
* @retval SCI_SUCCESS if the completion process was successful.
*
* @see For additional information please refer to:
* scic_controller_complete_io()
*/
SCI_STATUS scif_controller_complete_io(
SCI_CONTROLLER_HANDLE_T controller,
SCI_REMOTE_DEVICE_HANDLE_T remote_device,
SCI_IO_REQUEST_HANDLE_T io_request
);
/**
* @brief This method will perform framework specific completion operations for
* a task management request. After this method is invoked, the user
* should consider the task request as invalid until it is properly
* reused (i.e. re-constructed).
*
* @param[in] controller The handle to the controller object for which
* to complete the task management request.
* @param[in] remote_device The handle to the remote device object for which
* to complete the task management request.
* @param[in] task_request the handle to the task management request object
* to complete.
*
* @return Indicate if the controller successfully completed the task
* management request.
* @retval SCI_SUCCESS if the completion process was successful.
*/
SCI_STATUS scif_controller_complete_task(
SCI_CONTROLLER_HANDLE_T controller,
SCI_REMOTE_DEVICE_HANDLE_T remote_device,
SCI_TASK_REQUEST_HANDLE_T task_request
);
/**
* @brief This method simply provides the user with a unique handle for a
* given SAS/SATA domain index.
*
* @param[in] controller This parameter represents the handle to the
* controller object from which to retrieve a domain (SAS or
* SATA) handle.
* @param[in] port_index This parameter specifies the domain index in
* the controller for which to retrieve the domain handle.
* @note 0 <= port_index < maximum number of phys.
* @param[out] domain_handle This parameter specifies the retrieved domain
* handle to be provided to the caller.
*
* @return Indicate if the retrieval of the domain handle was successful.
* @retval SCI_SUCCESS This value is returned if the retrieval was successful.
* @retval SCI_FAILURE_INVALID_PORT This value is returned if the supplied
* port index is not invalid.
*/
SCI_STATUS scif_controller_get_domain_handle(
SCI_CONTROLLER_HANDLE_T controller,
U8 port_index,
SCI_DOMAIN_HANDLE_T * domain_handle
);
/**
* @brief This method allows the user to configure the SCI Framework
* into either a performance mode or a memory savings mode.
*
* @param[in] controller This parameter represents the handle to the
* controller object for which to update the operating
* mode.
* @param[in] mode This parameter specifies the new mode for the
* controller.
*
* @return Indicate if the user successfully change the operating mode
* of the controller.
* @retval SCI_SUCCESS The user successfully updated the mode.
*/
SCI_STATUS scif_controller_set_mode(
SCI_CONTROLLER_HANDLE_T controller,
SCI_CONTROLLER_MODE mode
);
/**
* @brief This method simply returns the T10 SCSI to ATA Translation (SAT)
* specification version to which this translator is compliant for
* supported commands.
*
* @return An integer value indicating the SAT version to which this
* translator complies.
*/
U32 scif_controller_get_sat_compliance_version(
void
);
/**
* @brief This method simply returns the revision of the T10 SCSI to ATA
* Translation (SAT) specification version to which this translator
* is compliant for supported commands.
*
* @return An integer value indicating the revision of the SAT version
* to which this translator complies.
*/
U32 scif_controller_get_sat_compliance_version_revision(
void
);
/**
* @brief This method is called by the SCI user to start internal io.
*/
typedef void (*SCI_START_INTERNAL_IO_ROUTINE)(
SCI_CONTROLLER_HANDLE_T controller
);
#if !defined(DISABLE_INTERRUPTS)
/**
* @brief This method allows the user to configure the interrupt coalescence.
* Please refer to the comment header for
* scic_controller_set_interrupt_coalescence() to find details.
*/
SCI_STATUS scif_controller_set_interrupt_coalescence(
SCI_CONTROLLER_HANDLE_T controller,
U32 coalesce_number,
U32 coalesce_timeout
);
/**
* @brief This method retrieves the interrupt coalescence information.
* Please refer to the comment header for
* scic_controller_get_interrupt_coalescence() to find details.
*/
void scif_controller_get_interrupt_coalescence(
SCI_CONTROLLER_HANDLE_T controller,
U32 * coalesce_number,
U32 * coalesce_timeout
);
#else // !defined(DISABLE_INTERRUPTS)
#define scif_controller_set_interrupt_coalescence(controller, num, timeout) \
SCI_FAILURE
#define scif_controller_get_interrupt_coalescence(controller, num, timeout)
#endif // !defined(DISABLE_INTERRUPTS)
#ifdef __cplusplus
}
#endif // __cplusplus
#endif // _SCIF_CONTROLLER_H_