path: root/drivers/scsi/isci/core/sci_status.h

/*
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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
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 * General Public License for more details.
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 * in the file called LICENSE.GPL.
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 * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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#ifndef _SCI_STATUS_H_
#define _SCI_STATUS_H_

/**
 * This file contains all of the return status codes utilized across the
 *    various sub-components in SCI.
 *
 *
 */


/**
 * enum _SCI_STATUS - This is the general return status enumeration for non-IO,
 *    non-task management related SCI interface methods.
 *
 *
 */
enum sci_status {
	/**
	 * This member indicates successful completion.
	 */
	SCI_SUCCESS = 0,

	/**
	 * This value indicates that the calling method completed successfully,
	 * but that the IO may have completed before having it's start method
	 * invoked.  This occurs during SAT translation for requests that do
	 * not require an IO to the target or for any other requests that may
	 * be completed without having to submit IO.
	 */
	SCI_SUCCESS_IO_COMPLETE_BEFORE_START,

	/**
	 *  This Value indicates that the SCU hardware returned an early response
	 *  because the io request specified more data than is returned by the
	 *  target device (mode pages, inquiry data, etc.). The completion routine
	 *  will handle this case to get the actual number of bytes transferred.
	 */
	SCI_SUCCESS_IO_DONE_EARLY,

	/**
	 * This member indicates that the object for which a state change is
	 * being requested is already in said state.
	 */
	SCI_WARNING_ALREADY_IN_STATE,

	/**
	 * This member indicates interrupt coalescence timer may cause SAS
	 * specification compliance issues (i.e. SMP target mode response
	 * frames must be returned within 1.9 milliseconds).
	 */
	SCI_WARNING_TIMER_CONFLICT,

	/**
	 * This field indicates a sequence of action is not completed yet. Mostly,
	 * this status is used when multiple ATA commands are needed in a SATI translation.
	 */
	SCI_WARNING_SEQUENCE_INCOMPLETE,

	/**
	 * This member indicates that there was a general failure.
	 */
	SCI_FAILURE,

	/**
	 * This member indicates that the SCI implementation is unable to complete
	 * an operation due to a critical flaw the prevents any further operation
	 * (i.e. an invalid pointer).
	 */
	SCI_FATAL_ERROR,

	/**
	 * This member indicates the calling function failed, because the state
	 * of the controller is in a state that prevents successful completion.
	 */
	SCI_FAILURE_INVALID_STATE,

	/**
	 * This member indicates the calling function failed, because there is
	 * insufficient resources/memory to complete the request.
	 */
	SCI_FAILURE_INSUFFICIENT_RESOURCES,

	/**
	 * This member indicates the calling function failed, because the
	 * controller object required for the operation can't be located.
	 */
	SCI_FAILURE_CONTROLLER_NOT_FOUND,

	/**
	 * This member indicates the calling function failed, because the
	 * discovered controller type is not supported by the library.
	 */
	SCI_FAILURE_UNSUPPORTED_CONTROLLER_TYPE,

	/**
	 * This member indicates the calling function failed, because the
	 * requested initialization data version isn't supported.
	 */
	SCI_FAILURE_UNSUPPORTED_INIT_DATA_VERSION,

	/**
	 * This member indicates the calling function failed, because the
	 * requested configuration of SAS Phys into SAS Ports is not supported.
	 */
	SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION,

	/**
	 * This member indicates the calling function failed, because the
	 * requested protocol is not supported by the remote device, port,
	 * or controller.
	 */
	SCI_FAILURE_UNSUPPORTED_PROTOCOL,

	/**
	 * This member indicates the calling function failed, because the
	 * requested information type is not supported by the SCI implementation.
	 */
	SCI_FAILURE_UNSUPPORTED_INFORMATION_TYPE,

	/**
	 * This member indicates the calling function failed, because the
	 * device already exists.
	 */
	SCI_FAILURE_DEVICE_EXISTS,

	/**
	 * This member indicates the calling function failed, because adding
	 * a phy to the object is not possible.
	 */
	SCI_FAILURE_ADDING_PHY_UNSUPPORTED,

	/**
	 * This member indicates the calling function failed, because the
	 * requested information type is not supported by the SCI implementation.
	 */
	SCI_FAILURE_UNSUPPORTED_INFORMATION_FIELD,

	/**
	 * This member indicates the calling function failed, because the SCI
	 * implementation does not support the supplied time limit.
	 */
	SCI_FAILURE_UNSUPPORTED_TIME_LIMIT,

	/**
	 * This member indicates the calling method failed, because the SCI
	 * implementation does not contain the specified Phy.
	 */
	SCI_FAILURE_INVALID_PHY,

	/**
	 * This member indicates the calling method failed, because the SCI
	 * implementation does not contain the specified Port.
	 */
	SCI_FAILURE_INVALID_PORT,

	/**
	 * This member indicates the calling method was partly successful
	 * The port was reset but not all phys in port are operational
	 */
	SCI_FAILURE_RESET_PORT_PARTIAL_SUCCESS,

	/**
	 * This member indicates that calling method failed
	 * The port reset did not complete because none of the phys are operational
	 */
	SCI_FAILURE_RESET_PORT_FAILURE,

	/**
	 * This member indicates the calling method failed, because the SCI
	 * implementation does not contain the specified remote device.
	 */
	SCI_FAILURE_INVALID_REMOTE_DEVICE,

	/**
	 * This member indicates the calling method failed, because the remote
	 * device is in a bad state and requires a reset.
	 */
	SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED,

	/**
	 * This member indicates the calling method failed, because the SCI
	 * implementation does not contain or support the specified IO tag.
	 */
	SCI_FAILURE_INVALID_IO_TAG,

	/**
	 * This member indicates that the operation failed and the user should
	 * check the response data associated with the IO.
	 */
	SCI_FAILURE_IO_RESPONSE_VALID,

	/**
	 * This member indicates that the operation failed, the failure is
	 * controller implementation specific, and the response data associated
	 * with the request is not valid.  You can query for the controller
	 * specific error information via scic_controller_get_request_status()
	 */
	SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR,

	/**
	 * This member indicated that the operation failed because the
	 * user requested this IO to be terminated.
	 */
	SCI_FAILURE_IO_TERMINATED,

	/**
	 * This member indicates that the operation failed and the associated
	 * request requires a SCSI abort task to be sent to the target.
	 */
	SCI_FAILURE_IO_REQUIRES_SCSI_ABORT,

	/**
	 * This member indicates that the operation failed because the supplied
	 * device could not be located.
	 */
	SCI_FAILURE_DEVICE_NOT_FOUND,

	/**
	 * This member indicates that the operation failed because the
	 * objects association is required and is not correctly set.
	 */
	SCI_FAILURE_INVALID_ASSOCIATION,

	/**
	 * This member indicates that the operation failed, because a timeout
	 * occurred.
	 */
	SCI_FAILURE_TIMEOUT,

	/**
	 * This member indicates that the operation failed, because the user
	 * specified a value that is either invalid or not supported.
	 */
	SCI_FAILURE_INVALID_PARAMETER_VALUE,

	/**
	 * This value indicates that the operation failed, because the number
	 * of messages (MSI-X) is not supported.
	 */
	SCI_FAILURE_UNSUPPORTED_MESSAGE_COUNT,

	/**
	 * This value indicates that the method failed due to a lack of
	 * available NCQ tags.
	 */
	SCI_FAILURE_NO_NCQ_TAG_AVAILABLE,

	/**
	 * This value indicates that a protocol violation has occurred on the
	 * link.
	 */
	SCI_FAILURE_PROTOCOL_VIOLATION,

	/**
	 * This value indicates a failure condition that retry may help to clear.
	 */
	SCI_FAILURE_RETRY_REQUIRED,

	/**
	 * This field indicates the retry limit was reached when a retry is attempted
	 */
	SCI_FAILURE_RETRY_LIMIT_REACHED,

	/**
	 * This member indicates the calling method was partly successful.
	 * Mostly, this status is used when a LUN_RESET issued to an expander attached
	 * STP device in READY NCQ substate needs to have RNC suspended/resumed
	 * before posting TC.
	 */
	SCI_FAILURE_RESET_DEVICE_PARTIAL_SUCCESS,

	/**
	 * This field indicates an illegal phy connection based on the routing attribute
	 * of both expander phy attached to each other.
	 */
	SCI_FAILURE_ILLEGAL_ROUTING_ATTRIBUTE_CONFIGURATION,

	/**
	 * This field indicates a CONFIG ROUTE INFO command has a response with function result
	 * INDEX DOES NOT EXIST, usually means exceeding max route index.
	 */
	SCI_FAILURE_EXCEED_MAX_ROUTE_INDEX,

	/**
	 * This value indicates that an unsupported PCI device ID has been
	 * specified.  This indicates that attempts to invoke
	 * scic_library_allocate_controller() will fail.
	 */
	SCI_FAILURE_UNSUPPORTED_PCI_DEVICE_ID

};

/**
 * enum _SCI_IO_STATUS - This enumeration depicts all of the possible IO
 *    completion status values.  Each value in this enumeration maps directly
 *    to a value in the enum sci_status enumeration.  Please refer to that
 *    enumeration for detailed comments concerning what the status represents.
 *
 * Add the API to retrieve the SCU status from the core. Check to see that the
 * following status are properly handled: - SCI_IO_FAILURE_UNSUPPORTED_PROTOCOL
 * - SCI_IO_FAILURE_INVALID_IO_TAG
 */
enum sci_io_status {
	SCI_IO_SUCCESS                         = SCI_SUCCESS,
	SCI_IO_FAILURE                         = SCI_FAILURE,
	SCI_IO_SUCCESS_COMPLETE_BEFORE_START   = SCI_SUCCESS_IO_COMPLETE_BEFORE_START,
	SCI_IO_SUCCESS_IO_DONE_EARLY           = SCI_SUCCESS_IO_DONE_EARLY,
	SCI_IO_FAILURE_INVALID_STATE           = SCI_FAILURE_INVALID_STATE,
	SCI_IO_FAILURE_INSUFFICIENT_RESOURCES  = SCI_FAILURE_INSUFFICIENT_RESOURCES,
	SCI_IO_FAILURE_UNSUPPORTED_PROTOCOL    = SCI_FAILURE_UNSUPPORTED_PROTOCOL,
	SCI_IO_FAILURE_RESPONSE_VALID          = SCI_FAILURE_IO_RESPONSE_VALID,
	SCI_IO_FAILURE_CONTROLLER_SPECIFIC_ERR = SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR,
	SCI_IO_FAILURE_TERMINATED              = SCI_FAILURE_IO_TERMINATED,
	SCI_IO_FAILURE_REQUIRES_SCSI_ABORT     = SCI_FAILURE_IO_REQUIRES_SCSI_ABORT,
	SCI_IO_FAILURE_INVALID_PARAMETER_VALUE = SCI_FAILURE_INVALID_PARAMETER_VALUE,
	SCI_IO_FAILURE_NO_NCQ_TAG_AVAILABLE    = SCI_FAILURE_NO_NCQ_TAG_AVAILABLE,
	SCI_IO_FAILURE_PROTOCOL_VIOLATION      = SCI_FAILURE_PROTOCOL_VIOLATION,

	SCI_IO_FAILURE_REMOTE_DEVICE_RESET_REQUIRED = SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED,

	SCI_IO_FAILURE_RETRY_REQUIRED      = SCI_FAILURE_RETRY_REQUIRED,
	SCI_IO_FAILURE_RETRY_LIMIT_REACHED = SCI_FAILURE_RETRY_LIMIT_REACHED,
	SCI_IO_FAILURE_INVALID_REMOTE_DEVICE = SCI_FAILURE_INVALID_REMOTE_DEVICE
};

/**
 * enum _SCI_TASK_STATUS - This enumeration depicts all of the possible task
 *    completion status values.  Each value in this enumeration maps directly
 *    to a value in the enum sci_status enumeration.  Please refer to that
 *    enumeration for detailed comments concerning what the status represents.
 *
 * Check to see that the following status are properly handled:
 */
enum sci_task_status {
	SCI_TASK_SUCCESS                         = SCI_SUCCESS,
	SCI_TASK_FAILURE                         = SCI_FAILURE,
	SCI_TASK_FAILURE_INVALID_STATE           = SCI_FAILURE_INVALID_STATE,
	SCI_TASK_FAILURE_INSUFFICIENT_RESOURCES  = SCI_FAILURE_INSUFFICIENT_RESOURCES,
	SCI_TASK_FAILURE_UNSUPPORTED_PROTOCOL    = SCI_FAILURE_UNSUPPORTED_PROTOCOL,
	SCI_TASK_FAILURE_INVALID_TAG             = SCI_FAILURE_INVALID_IO_TAG,
	SCI_TASK_FAILURE_RESPONSE_VALID          = SCI_FAILURE_IO_RESPONSE_VALID,
	SCI_TASK_FAILURE_CONTROLLER_SPECIFIC_ERR = SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR,
	SCI_TASK_FAILURE_TERMINATED              = SCI_FAILURE_IO_TERMINATED,
	SCI_TASK_FAILURE_INVALID_PARAMETER_VALUE = SCI_FAILURE_INVALID_PARAMETER_VALUE,

	SCI_TASK_FAILURE_REMOTE_DEVICE_RESET_REQUIRED = SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED,
	SCI_TASK_FAILURE_RESET_DEVICE_PARTIAL_SUCCESS = SCI_FAILURE_RESET_DEVICE_PARTIAL_SUCCESS

};


#endif  /* _SCI_STATUS_H_ */