task.h File Reference

#include <scsi/sas_ata.h>
#include "host.h"

Go to the source code of this file.

Data Structures
struct	isci_tmf

Macros
#define	ISCI_TERMINATION_TIMEOUT_MSEC   500

Enumerations
enum	isci_tmf_function_codes { isci_tmf_func_none = 0, isci_tmf_ssp_task_abort = TMF_ABORT_TASK, isci_tmf_ssp_lun_reset = TMF_LU_RESET }

Functions
int	isci_task_execute_task (struct sas_task *task, int num, gfp_t gfp_flags)
int	isci_task_abort_task (struct sas_task *task)
int	isci_task_abort_task_set (struct domain_device *d_device, u8 *lun)
int	isci_task_clear_aca (struct domain_device *d_device, u8 *lun)
int	isci_task_clear_task_set (struct domain_device *d_device, u8 *lun)
int	isci_task_query_task (struct sas_task *task)
int	isci_task_lu_reset (struct domain_device *d_device, u8 *lun)
int	isci_task_clear_nexus_port (struct asd_sas_port *port)
int	isci_task_clear_nexus_ha (struct sas_ha_struct *ha)
int	isci_task_I_T_nexus_reset (struct domain_device *d_device)
void	isci_task_request_complete (struct isci_host *isci_host, struct isci_request *request, enum sci_task_status completion_status)
u16	isci_task_ssp_request_get_io_tag_to_manage (struct isci_request *request)
u8	isci_task_ssp_request_get_function (struct isci_request *request)
void *	isci_task_ssp_request_get_response_data_address (struct isci_request *request)
u32	isci_task_ssp_request_get_response_data_length (struct isci_request *request)
int	isci_queuecommand (struct scsi_cmnd *scsi_cmd, void(*donefunc)(struct scsi_cmnd *))

Macro Definition Documentation

#define ISCI_TERMINATION_TIMEOUT_MSEC   500

Definition at line 61 of file task.h.

Enumeration Type Documentation

enum isci_tmf_function_codes

enum isci_tmf_function_codes - This enum defines the possible preparations of task management requests.

Enumerator:

isci_tmf_func_none
isci_tmf_ssp_task_abort
isci_tmf_ssp_lun_reset

Definition at line 71 of file task.h.

Function Documentation

int isci_queuecommand	(	struct scsi_cmnd *	scsi_cmd,
		void(*)(struct scsi_cmnd *)	donefunc
	)

int isci_task_abort_task

(

struct sas_task *

task

)

isci_task_abort_task() - This function is one of the SAS Domain Template functions. This function is called by libsas to abort a specified task. : This parameter specifies the SAS task to abort.

status, zero indicates success.

Definition at line 485 of file task.c.

int isci_task_abort_task_set	(	struct domain_device *	d_device,
		u8 *	lun
	)

isci_task_abort_task_set() - This function is one of the SAS Domain Template functions. This is one of the Task Management functoins called by libsas, to abort all task for the given lun. : This parameter specifies the domain device associated with this request. : This parameter specifies the lun associated with this request.

status, zero indicates success.

Definition at line 624 of file task.c.

int isci_task_clear_aca	(	struct domain_device *	d_device,
		u8 *	lun
	)

isci_task_clear_aca() - This function is one of the SAS Domain Template functions. This is one of the Task Management functoins called by libsas. : This parameter specifies the domain device associated with this request. : This parameter specifies the lun associated with this request.

status, zero indicates success.

Definition at line 641 of file task.c.

int isci_task_clear_nexus_ha

(

struct sas_ha_struct *

ha

)

Definition at line 471 of file task.c.

int isci_task_clear_nexus_port

(

struct asd_sas_port *

port

)

Definition at line 464 of file task.c.

int isci_task_clear_task_set	(	struct domain_device *	d_device,
		u8 *	lun
	)

isci_task_clear_task_set() - This function is one of the SAS Domain Template functions. This is one of the Task Management functoins called by libsas. : This parameter specifies the domain device associated with this request. : This parameter specifies the lun associated with this request.

status, zero indicates success.

Definition at line 659 of file task.c.

int isci_task_execute_task	(	struct sas_task *	task,
		int	num,
		gfp_t	gfp_flags
	)

isci_task_execute_task() - This function is one of the SAS Domain Template functions. This function is called by libsas to send a task down to hardware. : This parameter specifies the SAS task to send. : This parameter specifies the number of tasks to queue. : This parameter specifies the context of this call.

status, zero indicates success.

Definition at line 125 of file task.c.

int isci_task_I_T_nexus_reset

(

struct domain_device *

d_device

)

Definition at line 786 of file task.c.

int isci_task_lu_reset	(	struct domain_device *	d_device,
		u8 *	lun
	)

Definition at line 419 of file task.c.

int isci_task_query_task

(

struct sas_task *

task

)

isci_task_query_task() - This function is implemented to cause libsas to correctly escalate the failed abort to a LUN or target reset (this is because sas_scsi_find_task libsas function does not correctly interpret all return codes from the abort task call). When TMF_RESP_FUNC_SUCC is returned, libsas turns this into a LUN reset; when FUNC_FAILED is returned, libsas will turn this into a target reset : This parameter specifies the sas task being queried. : This parameter specifies the lun associated with this request.

status, zero indicates success.

Definition at line 679 of file task.c.

void isci_task_request_complete	(	struct isci_host *	isci_host,
		struct isci_request *	request,
		enum sci_task_status	completion_status
	)

Definition at line 700 of file task.c.

u8 isci_task_ssp_request_get_function

(

struct isci_request *

request

)

u16 isci_task_ssp_request_get_io_tag_to_manage

(

struct isci_request *

request

)

void* isci_task_ssp_request_get_response_data_address

(

struct isci_request *

request

)

u32 isci_task_ssp_request_get_response_data_length

(

struct isci_request *

request

)