include/target/target_core_backend.h

Source file repositories/reference/linux-study-clean/include/target/target_core_backend.h

File Facts

System
Linux kernel
Corpus path
include/target/target_core_backend.h
Extension
.h
Size
5357 bytes
Lines
135
Domain
Repository Root And Misc
Bucket
include
Inferred role
Repository Root And Misc: implementation source
Status
source implementation candidate

Why This File Exists

Top-level or miscellaneous repository surface. Use this as map coverage unless a later manual pass promotes the file into a deeper subsystem dossier.

Dependency Surface

Detected Declarations

Annotated Snippet

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

	u8 transport_flags_default;
	u8 transport_flags_changeable;

	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 (*destroy_device)(struct se_device *);
	void (*free_device)(struct se_device *device);
	struct se_dev_plug *(*plug_device)(struct se_device *se_dev);
	void (*unplug_device)(struct se_dev_plug *se_plug);

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

	sense_reason_t (*parse_cdb)(struct se_cmd *cmd);
	void (*tmr_notify)(struct se_device *se_dev, enum tcm_tmreq_table,
			   struct list_head *aborted_cmds);
	u32 (*get_device_type)(struct se_device *);
	sector_t (*get_blocks)(struct se_device *);
	sector_t (*get_alignment_offset_lbas)(struct se_device *);
	/* lbppbe = logical blocks per physical block exponent. see SBC-3 */
	unsigned int (*get_lbppbe)(struct se_device *);
	unsigned int (*get_io_min)(struct se_device *);
	unsigned int (*get_io_opt)(struct se_device *);
	unsigned char *(*get_sense_buffer)(struct se_cmd *);
	bool (*get_write_cache)(struct se_device *);
	int (*init_prot)(struct se_device *);
	int (*format_prot)(struct se_device *);
	void (*free_prot)(struct se_device *);

	struct configfs_attribute **tb_dev_attrib_attrs;
	struct configfs_attribute **tb_dev_action_attrs;
};

struct exec_cmd_ops {
	sense_reason_t (*execute_rw)(struct se_cmd *cmd, struct scatterlist *,
				     u32, enum dma_data_direction);
	sense_reason_t (*execute_sync_cache)(struct se_cmd *cmd);
	sense_reason_t (*execute_write_same)(struct se_cmd *cmd);
	sense_reason_t (*execute_unmap)(struct se_cmd *cmd,
				sector_t lba, sector_t nolb);
	sense_reason_t (*execute_pr_out)(struct se_cmd *cmd, u8 sa, u64 key,
					 u64 sa_key, u8 type, bool aptpl);
	sense_reason_t (*execute_pr_in)(struct se_cmd *cmd, u8 sa,
					unsigned char *param_data);
};

int	transport_backend_register(const struct target_backend_ops *);
void	target_backend_unregister(const struct target_backend_ops *);

void	target_complete_cmd(struct se_cmd *, u8);
void	target_set_cmd_data_length(struct se_cmd *, int);
void	target_complete_cmd_with_sense(struct se_cmd *, u8, sense_reason_t);
void	target_complete_cmd_with_length(struct se_cmd *, u8, int);

void	transport_copy_sense_to_cmd(struct se_cmd *, unsigned char *);

sense_reason_t	spc_parse_cdb(struct se_cmd *cmd, unsigned int *size);
sense_reason_t	spc_emulate_report_luns(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 exec_cmd_ops *ops);
u32	sbc_get_device_rev(struct se_device *dev);
u32	sbc_get_device_type(struct se_device *dev);
sector_t	sbc_get_write_same_sectors(struct se_cmd *cmd);
void	sbc_dif_generate(struct se_cmd *);
sense_reason_t	sbc_dif_verify(struct se_cmd *, sector_t, unsigned int,
				     unsigned int, struct scatterlist *, int);
void sbc_dif_copy_prot(struct se_cmd *, unsigned int, bool,
		       struct scatterlist *, int);
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 *);

extern struct configfs_attribute *sbc_attrib_attrs[];
extern struct configfs_attribute *passthrough_attrib_attrs[];
extern struct configfs_attribute *passthrough_pr_attrib_attrs[];

Annotation

Implementation Notes