aboutsummaryrefslogblamecommitdiffstats
path: root/include/target/target_core_backend.h
blob: f9a80169775d989bc09471919e136e6065a76726 (plain) (tree)
1
2
3
4
5
6
7
8
9
10
11










                                                 

                              



                             


                                                                








                                                                         


                                                        
 
                                                        

                                                   
                                                            
                                                    

  
                


                                                                 
                                                                       
                                                            

  


                                                                
                                                 
 

                                                                      
                                                               

                                                                          
 
                                                                       


                                                   





                                                                        

                                                  
 

                                       
                                  
#ifndef TARGET_CORE_BACKEND_H
#define TARGET_CORE_BACKEND_H

#define TRANSPORT_PLUGIN_PHBA_PDEV		1
#define TRANSPORT_PLUGIN_VHBA_PDEV		2
#define TRANSPORT_PLUGIN_VHBA_VDEV		3

struct se_subsystem_api {
	struct list_head sub_api_list;

	char name[16];
	char inquiry_prod[16];
	char inquiry_rev[4];
	struct module *owner;

	u8 transport_type;

	int (*attach_hba)(struct se_hba *, u32);
	void (*detach_hba)(struct se_hba *);
	int (*pmode_enable_hba)(struct se_hba *, unsigned long);

	struct se_device *(*alloc_device)(struct se_hba *, const char *);
	int (*configure_device)(struct se_device *);
	void (*free_device)(struct se_device *device);

	ssize_t (*set_configfs_dev_params)(struct se_device *,
					   const char *, ssize_t);
	ssize_t (*show_configfs_dev_params)(struct se_device *, char *);

	void (*transport_complete)(struct se_cmd *cmd,
				   struct scatterlist *,
				   unsigned char *);

	sense_reason_t (*parse_cdb)(struct se_cmd *cmd);
	u32 (*get_device_type)(struct se_device *);
	sector_t (*get_blocks)(struct se_device *);
	unsigned char *(*get_sense_buffer)(struct se_cmd *);
	bool (*get_write_cache)(struct se_device *);
};

struct sbc_ops {
	sense_reason_t (*execute_rw)(struct se_cmd *cmd);
	sense_reason_t (*execute_sync_cache)(struct se_cmd *cmd);
	sense_reason_t (*execute_write_same)(struct se_cmd *cmd);
	sense_reason_t (*execute_write_same_unmap)(struct se_cmd *cmd);
	sense_reason_t (*execute_unmap)(struct se_cmd *cmd);
};

int	transport_subsystem_register(struct se_subsystem_api *);
void	transport_subsystem_release(struct se_subsystem_api *);

void	target_complete_cmd(struct se_cmd *, u8);

sense_reason_t	spc_parse_cdb(struct se_cmd *cmd, unsigned int *size);
sense_reason_t	spc_emulate_report_luns(struct se_cmd *cmd);
sector_t	spc_get_write_same_sectors(struct se_cmd *cmd);
sense_reason_t	spc_emulate_inquiry_std(struct se_cmd *, unsigned char *);
sense_reason_t	spc_emulate_evpd_83(struct se_cmd *, unsigned char *);

sense_reason_t	sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops);
u32	sbc_get_device_rev(struct se_device *dev);
u32	sbc_get_device_type(struct se_device *dev);

void	transport_set_vpd_proto_id(struct t10_vpd *, unsigned char *);
int	transport_set_vpd_assoc(struct t10_vpd *, unsigned char *);
int	transport_set_vpd_ident_type(struct t10_vpd *, unsigned char *);
int	transport_set_vpd_ident(struct t10_vpd *, unsigned char *);

/* core helpers also used by command snooping in pscsi */
void	*transport_kmap_data_sg(struct se_cmd *);
void	transport_kunmap_data_sg(struct se_cmd *);

void	array_free(void *array, int n);

#endif /* TARGET_CORE_BACKEND_H */