/*-
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* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
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#ifndef _SATI_CALLBACKS_H_
#define _SATI_CALLBACKS_H_
/**
* @file
* @brief This file contains the default callback bindings for SATI. These
* must be overridden by the SATI user to ensure successful operation.
*/
#include <dev/isci/scil/sati_types.h>
#include <dev/isci/scil/intel_sas.h>
#ifdef SATI_DEFAULT_DECLARATION
/**
* @brief This callback method asks the user to provide the address for
* the command descriptor block (CDB) associated with this IO request.
*
* @param[in] scsi_io This parameter points to the user's IO request object
* It is a cookie that allows the user to provide the necessary
* information for this callback.
*
* @return This method returns the virtual address of the CDB.
*/
void * sati_cb_get_cdb_address(
void * scsi_io
);
/**
* @brief This callback method asks the user to provide the length of
* the command descriptor block (CDB) associated with this IO request.
*
* @param[in] scsi_io This parameter points to the user's IO request object.
* It is a cookie that allows the user to provide the necessary
* information for this callback.
*
* @return This method returns the length of the CDB.
*/
U32 sati_cb_get_cdb_length(
void * scsi_io
);
/**
* @brief This callback method asks the user to provide the data transfer
* direction of this IO request.
*
* @param[in] scsi_io This parameter points to the user's IO request object.
* It is a cookie that allows the user to provide the necessary
* information for this callback.
* @param[in] io_direction to return
* @return This method returns the length of the CDB.
*/
void sati_cb_get_data_direction(
void * scsi_io,
U8 * io_direction
);
/**
* @brief This callback method sets a value into the data buffer associated
* with the supplied user SCSI IO request at the supplied byte offset.
*
* @note SATI does not manage the user scatter-gather-list. As a result,
* the user must ensure that data is written according to the SGL.
*
* @param[in] scsi_io This parameter specifies the user's SCSI IO request
* for which to set the data buffer byte.
* @param[in] byte_offset This parameter specifies the offset into the
* data buffer at which to set the value.
* @param[in] value This parameter specifies the new value to be set into
* the data buffer.
*
* @return none
*/
void sati_cb_set_data_byte(
void * scsi_io,
U32 byte_offset,
U8 value
);
/**
* @brief This callback method gets a value from the data buffer associated
* with the supplied user SCSI IO request at the supplied byte offset.
*
* @note SATI does not manage the user scatter-gather-list. As a result,
* the user must ensure that data is written according to the SGL.
*
* @param[in] scsi_io This parameter specifies the user's SCSI IO request
* for which to get the data buffer byte.
* @param[in] byte_offset This parameter specifies the offset into the
* data buffer at which to get the value.
* @param[in] value This parameter specifies the new value to be get into
* the data buffer.
*
* @return none
*/
void sati_cb_get_data_byte(
void * scsi_io,
U32 byte_offset,
U8 * value
);
/**
* @brief This callback method gets the task type for the SCSI task
* request.
*
* @param[in] scsi_task This parameter specifies the user's SCSI Task request.
* It is a cookie that allows the user to provide the necessary
* information for this callback.
*
* @return This method returns one of the enumeration values for
* SCSI_TASK_MGMT_REQUEST_CODES
*/
U8 sati_cb_get_task_function(
void * scsi_task
);
#ifdef SATI_TRANSPORT_SUPPORTS_SAS
/**
* @brief This callback method retrieves the address of the user's SSP
* response IU buffer.
*
* @param[in] scsi_io This parameter specifies the user's SCSI IO request
* for which to retrieve the location of the response buffer to
* be written.
*
* @return This method returns the address of the response data buffer.
*/
void * sati_cb_get_response_iu_address(
void * scsi_io
);
#else // SATI_TRANSPORT_SUPPORTS_SAS
/**
* @brief This callback method retrieves the address of the user's sense data
* buffer.
*
* @param[in] scsi_io This parameter specifies the user's SCSI IO request
* for which to retrieve the location of the sense buffer to
* be written.
*
* @return This method returns the address of the sense data buffer.
*/
U8* sati_cb_get_sense_data_address(
void * scsi_io
);
/**
* @brief This callback method retrieves the length of the user's sense data
* buffer.
*
* @param[in] scsi_io This parameter specifies the user's SCSI IO request
* for which to retrieve the location of the sense buffer to
* be written.
*
* @return This method returns the length of the sense data buffer.
*/
U32 sati_cb_get_sense_data_length(
void * scsi_io
);
/**
* @brief This callback method sets the SCSI status to be associated with
* the supplied user's SCSI IO request.
*
* @param[in] scsi_io This parameter specifies the user's SCSI IO request
* for which to set the SCSI status.
* @param[in] status This parameter specifies the SCSI status to be
* associated with the supplied user's SCSI IO request.
*
* @return none
*/
void sati_cb_set_scsi_status(
void * scsi_io,
U8 status
);
#endif // SATI_TRANSPORT_SUPPORTS_SAS
/**
* @brief This method retrieves the ATA task file (register FIS) relating to
* the host to device command values.
*
* @param[in] ata_io This parameter specifies the user's ATA IO request
* from which to retrieve the h2d register FIS address.
*
* @return This method returns the address for the host to device register
* FIS.
*/
U8 * sati_cb_get_h2d_register_fis_address(
void * ata_io
);
/**
* @brief This method retrieves the ATA task file (register FIS) relating to
* the device to host response values.
*
* @param[in] ata_io This parameter specifies the user's ATA IO request
* from which to retrieve the d2h register FIS address.
*
* @return This method returns the address for the device to host register
* FIS.
*/
U8 * sati_cb_get_d2h_register_fis_address(
void * ata_io
);
/**
* @brief This method retrieves the address where the ATA data received
* from the device is stored.
*
* @param[in] ata_io This parameter specifies the user's ATA IO request
* from which to retrieve the received data address.
*
* @return This method returns the address for the data received from
* the remote device.
*/
void * sati_cb_get_ata_data_address(
void * ata_io
);
/**
* @brief This method allocates a DMA buffer
* that can be utilized for small (<=4K) DMA sequences.
* This is utilized to translate SCSI UNMAP requests.
*
* @param[in] scsi_io This parameter specifies the user's SCSI IO request
* for which to set the SCSI status.
* @param[in] length in bytes of the buffer to be allocated
* @param[in] virtual address of the allocated DMA buffer.
* @param[in] low 32 bits of the physical DMA address.
* @param[in] high 32 bits of the physical DMA address.
*
* @return This method returns the virtual and physical address
* of the allocated DMA buffer.
*/
void sati_cb_allocate_dma_buffer(
void * scsi_io,
U32 length,
void ** virt_address,
U32 * phys_address_low,
U32 * phys_address_high
);
/**
* @brief This method frees a previously allocated DMA buffer
*
* @param[in] scsi_io This parameter specifies the user's SCSI IO request
* for which to set the SCSI status.
* @param[in] address - write buffer address being freed
*
* @return This method returns the address for the data received from
* the remote device.
*/
void sati_cb_free_dma_buffer(
void * scsi_io,
void * virt_address
);
/**
* @brief This method retrieves a pointer to the next scatter gather
* list element.
*
* @param[in] scsi_io This parameter specifies the user's SCSI IO request
* from which to retrieve the scatter gather list.
* @param[in] ata_io This parameter specifies the user's ATA IO request
* from which to retrieve the scatter gather list.
* @param[in] current_sge This parameter specifies the current SG element
* being pointed to. If retrieving the first element,
* then this value should be NULL.
* @param[in] next_sge This parameter is the returned SGL element
* based on current_sge.
*
* @return This method returns a pointer to the scatter gather element.
*/
void sati_cb_sgl_next_sge(
void * scsi_io,
void * ata_io,
void * current_sge,
void ** next_sge
);
/**
* @brief This method will set the next scatter-gather elements address
* low field.
*
* @param[in] current_sge This parameter specifies the current SG element
* being pointed to.
* @param[in] address_low This parameter specifies the lower 32-bits
* of address to be programmed into the SG element.
* @param[in] address_high This parameter specifies the upper 32-bits
* of address to be programmed into the SG element.
* @param[in] length This parameter specifies the number of bytes
* to be programmed into the SG element.
*
* @return none
*/
void sati_cb_sge_write(
void * current_sge,
U32 phys_address_low,
U32 phys_address_high,
U32 byte_length
);
/**
* @brief This method will check to see if the translation requires
* a translation response callback. Some translations need to be alerted on all
* failures so sequence cleanup can be completed for halting the translation.
*
* @param[in] the current SCIC request under going translation.
*
* @return TRUE A response callback will be required to complete this translation sequence.
*/
BOOL sati_cb_do_translate_response(
void * request
);
/**
* @brief This method retrieves the SAS address for the device associated
* with the supplied SCSI IO request. This method assumes that the
* associated device is contained in a SAS Domain.
*
* @param[in] scsi_io This parameter specifies the user's SCSI IO request
* for which to retrieve the SAS address of the device.
* @param[out] sas_address This parameter specifies the SAS address memory
* to be contain the retrieved value.
*
* @return none
*/
void sati_cb_device_get_sas_address(
void * scsi_io,
SCI_SAS_ADDRESS_T * sas_address
);
/**
* @brief In this method the user is expected to log the supplied
* error information. The user must be capable of handling variable
* length argument lists and should consider prepending the fact
* that this is an error from the core.
*
* @param[in] logger_object This parameter specifies the logger object
* associated with this message.
* @param[in] log_object_mask This parameter specifies the log objects
* for which this message is being generated.
* @param[in] log_message This parameter specifies the message to be logged.
*
* @return none
*/
void sati_cb_logger_log_error(
void * logger_object,
U32 log_object_mask,
char * log_message,
...
);
/**
* @brief In this method the user is expected to log the supplied warning
* information. The user must be capable of handling variable
* length argument lists and should consider prepending the fact
* that this is a warning from the core.
*
* @param[in] logger_object This parameter specifies the logger object
* associated with this message.
* @param[in] log_object_mask This parameter specifies the log objects
* for which this message is being generated.
* @param[in] log_message This parameter specifies the message to be logged.
*
* @return none
*/
void sati_cb_logger_log_warning(
void * logger_object,
U32 log_object_mask,
char * log_message,
...
);
/**
* @brief In this method the user is expected to log the supplied debug
* information. The user must be capable of handling variable
* length argument lists and should consider prepending the fact
* that this is a debug message from the core.
*
* @param[in] logger_object This parameter specifies the logger object
* associated with this message.
* @param[in] log_object_mask This parameter specifies the log objects
* for which this message is being generated.
* @param[in] log_message This parameter specifies the message to be logged.
*
* @return none
*/
void sati_cb_logger_log_info(
void * logger_object,
U32 log_object_mask,
char * log_message,
...
);
/**
* @brief In this method the user is expected to log the supplied function
* trace information. The user must be capable of handling variable
* length argument lists and should consider prepending the fact
* that this is a function trace (i.e. entry/exit) message from the
* core.
*
* @param[in] logger_object This parameter specifies the logger object
* associated with this message.
* @param[in] log_object_mask This parameter specifies the log objects
* for which this message is being generated.
* @param[in] log_message This parameter specifies the message to be logged.
*
* @return none
*/
void sati_cb_logger_log_trace(
void * logger_object,
U32 log_object_mask,
char * log_message,
...
);
#include <dev/isci/scil/sati_callbacks_implementation.h>
#else // SATI_DEFAULT_DECLARATION
#include <dev/isci/scil/scif_sas_sati_binding.h>
#endif // SATI_DEFAULT_DECLARATION
#endif // _SATI_CALLBACKS_H_