| #ifndef TARGET_CORE_BACKEND_H |
| #define TARGET_CORE_BACKEND_H |
| |
| #define TRANSPORT_FLAG_PASSTHROUGH 1 |
| |
| struct target_backend_ops { |
| char name[16]; |
| char inquiry_prod[16]; |
| char inquiry_rev[4]; |
| struct module *owner; |
| |
| u8 transport_flags; |
| |
| 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 *); |
| 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 sbc_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); |
| }; |
| |
| 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_complete_cmd_with_length(struct se_cmd *, u8, int); |
| |
| 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 sbc_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[]; |
| |
| /* 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 *); |
| /* core helpers also used by xcopy during internal command setup */ |
| int target_alloc_sgl(struct scatterlist **, unsigned int *, u32, bool); |
| sense_reason_t transport_generic_map_mem_to_cmd(struct se_cmd *, |
| struct scatterlist *, u32, struct scatterlist *, u32); |
| |
| bool target_lun_is_rdonly(struct se_cmd *); |
| sense_reason_t passthrough_parse_cdb(struct se_cmd *cmd, |
| sense_reason_t (*exec_cmd)(struct se_cmd *cmd)); |
| |
| bool target_sense_desc_format(struct se_device *dev); |
| sector_t target_to_linux_sector(struct se_device *dev, sector_t lb); |
| bool target_configure_unmap_from_queue(struct se_dev_attrib *attrib, |
| struct request_queue *q); |
| |
| #endif /* TARGET_CORE_BACKEND_H */ |