[GitHub/exynos8895/android_kernel_samsung_universal8895.git] / include / target / target_core_backend.h

#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];
	struct module *owner;

	u8 transport_type;

	unsigned int fua_write_emulated : 1;
	unsigned int write_cache_emulated : 1;

	int (*attach_hba)(struct se_hba *, u32);
	void (*detach_hba)(struct se_hba *);
	int (*pmode_enable_hba)(struct se_hba *, unsigned long);
	void *(*allocate_virtdevice)(struct se_hba *, const char *);
	struct se_device *(*create_virtdevice)(struct se_hba *,
				struct se_subsystem_dev *, void *);
	void (*free_device)(void *);
	void (*transport_complete)(struct se_cmd *cmd,
				   struct scatterlist *,
				   unsigned char *);

	int (*parse_cdb)(struct se_cmd *cmd);
	ssize_t (*check_configfs_dev_params)(struct se_hba *,
			struct se_subsystem_dev *);
	ssize_t (*set_configfs_dev_params)(struct se_hba *,
			struct se_subsystem_dev *, const char *, ssize_t);
	ssize_t (*show_configfs_dev_params)(struct se_hba *,
			struct se_subsystem_dev *, char *);
	u32 (*get_device_rev)(struct se_device *);
	u32 (*get_device_type)(struct se_device *);
	sector_t (*get_blocks)(struct se_device *);
	unsigned char *(*get_sense_buffer)(struct se_cmd *);
};

struct spc_ops {
	int (*execute_rw)(struct se_cmd *cmd);
	int (*execute_sync_cache)(struct se_cmd *cmd);
	int (*execute_write_same)(struct se_cmd *cmd);
	int (*execute_unmap)(struct se_cmd *cmd);
};

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

struct se_device *transport_add_device_to_core_hba(struct se_hba *,
		struct se_subsystem_api *, struct se_subsystem_dev *, u32,
		void *, struct se_dev_limits *, const char *, const char *);

void	target_complete_cmd(struct se_cmd *, u8);

int	sbc_parse_cdb(struct se_cmd *cmd, struct spc_ops *ops);
int	spc_parse_cdb(struct se_cmd *cmd, unsigned int *size);
int	spc_get_write_same_sectors(struct se_cmd *cmd);

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 */
Commit	Line	Data
c4795fb2 CH	1	#ifndef TARGET_CORE_BACKEND_H
	2	#define TARGET_CORE_BACKEND_H
	3
	4	#define TRANSPORT_PLUGIN_PHBA_PDEV 1
	5	#define TRANSPORT_PLUGIN_VHBA_PDEV 2
	6	#define TRANSPORT_PLUGIN_VHBA_VDEV 3
	7
	8	struct se_subsystem_api {
	9	struct list_head sub_api_list;
	10
	11	char name[16];
	12	struct module *owner;
	13
	14	u8 transport_type;
	15
	16	unsigned int fua_write_emulated : 1;
	17	unsigned int write_cache_emulated : 1;
	18
	19	int (attach_hba)(struct se_hba , u32);
	20	void (detach_hba)(struct se_hba );
	21	int (pmode_enable_hba)(struct se_hba , unsigned long);
	22	void (allocate_virtdevice)(struct se_hba , const char );
	23	struct se_device (create_virtdevice)(struct se_hba *,
	24	struct se_subsystem_dev , void );
	25	void (free_device)(void );
d5829eac PB	26	void (transport_complete)(struct se_cmd cmd,
	27	struct scatterlist *,
	28	unsigned char *);
d6e0175c	29
1fd032ee	30	int (parse_cdb)(struct se_cmd cmd);
c4795fb2 CH	31	ssize_t (check_configfs_dev_params)(struct se_hba ,
	32	struct se_subsystem_dev *);
	33	ssize_t (set_configfs_dev_params)(struct se_hba ,
	34	struct se_subsystem_dev , const char , ssize_t);
	35	ssize_t (show_configfs_dev_params)(struct se_hba ,
	36	struct se_subsystem_dev , char );
	37	u32 (get_device_rev)(struct se_device );
	38	u32 (get_device_type)(struct se_device );
	39	sector_t (get_blocks)(struct se_device );
5787cacd	40	unsigned char (get_sense_buffer)(struct se_cmd *);
c4795fb2 CH	41	};
c4795fb2 CH	42
0c2ad7d1 CH	43	struct spc_ops {
0c2ad7d1 CH	44	int (execute_rw)(struct se_cmd cmd);
ad67f0d9	45	int (execute_sync_cache)(struct se_cmd cmd);
6f974e8c	46	int (execute_write_same)(struct se_cmd cmd);
14150a6b	47	int (execute_unmap)(struct se_cmd cmd);
0c2ad7d1 CH	48	};
0c2ad7d1 CH	49
c4795fb2 CH	50	int transport_subsystem_register(struct se_subsystem_api *);
	51	void transport_subsystem_release(struct se_subsystem_api *);
	52
	53	struct se_device transport_add_device_to_core_hba(struct se_hba ,
	54	struct se_subsystem_api , struct se_subsystem_dev , u32,
	55	void , struct se_dev_limits , const char , const char );
	56
6bb35e00	57	void target_complete_cmd(struct se_cmd *, u8);
c4795fb2	58
0c2ad7d1	59	int sbc_parse_cdb(struct se_cmd cmd, struct spc_ops ops);
1fd032ee	60	int spc_parse_cdb(struct se_cmd cmd, unsigned int size);
6f974e8c	61	int spc_get_write_same_sectors(struct se_cmd *cmd);
d6e0175c	62
c4795fb2 CH	63	void transport_set_vpd_proto_id(struct t10_vpd , unsigned char );
	64	int transport_set_vpd_assoc(struct t10_vpd , unsigned char );
	65	int transport_set_vpd_ident_type(struct t10_vpd , unsigned char );
	66	int transport_set_vpd_ident(struct t10_vpd , unsigned char );
	67
	68	/* core helpers also used by command snooping in pscsi */
4949314c AG	69	void transport_kmap_data_sg(struct se_cmd );
4949314c AG	70	void transport_kunmap_data_sg(struct se_cmd *);
c4795fb2	71
4a5a75f3 JE	72	void array_free(void *array, int n);
4a5a75f3 JE	73
c4795fb2	74	#endif /* TARGET_CORE_BACKEND_H */