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# 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 ] ;
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char inquiry_prod [ 16 ] ;
char inquiry_rev [ 4 ] ;
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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 ) ;
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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 * ) ;
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void ( * transport_complete ) ( struct se_cmd * cmd ,
struct scatterlist * ,
unsigned char * ) ;
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sense_reason_t ( * parse_cdb ) ( struct se_cmd * cmd ) ;
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u32 ( * get_device_type ) ( struct se_device * ) ;
sector_t ( * get_blocks ) ( struct se_device * ) ;
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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 * ) ;
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unsigned char * ( * get_sense_buffer ) ( struct se_cmd * ) ;
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bool ( * get_write_cache ) ( struct se_device * ) ;
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int ( * init_prot ) ( struct se_device * ) ;
int ( * format_prot ) ( struct se_device * ) ;
void ( * free_prot ) ( struct se_device * ) ;
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} ;
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struct sbc_ops {
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sense_reason_t ( * execute_rw ) ( struct se_cmd * cmd , struct scatterlist * ,
u32 , enum dma_data_direction ) ;
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sense_reason_t ( * execute_sync_cache ) ( struct se_cmd * cmd ) ;
sense_reason_t ( * execute_write_same ) ( struct se_cmd * cmd ) ;
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sense_reason_t ( * execute_write_same_unmap ) ( struct se_cmd * cmd ) ;
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sense_reason_t ( * execute_unmap ) ( struct se_cmd * cmd ) ;
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} ;
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int transport_subsystem_register ( struct se_subsystem_api * ) ;
void transport_subsystem_release ( struct se_subsystem_api * ) ;
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void target_complete_cmd ( struct se_cmd * , u8 ) ;
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sense_reason_t spc_parse_cdb ( struct se_cmd * cmd , unsigned int * size ) ;
sense_reason_t spc_emulate_report_luns ( struct se_cmd * cmd ) ;
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sense_reason_t spc_emulate_inquiry_std ( struct se_cmd * , unsigned char * ) ;
sense_reason_t spc_emulate_evpd_83 ( struct se_cmd * , unsigned char * ) ;
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sense_reason_t sbc_parse_cdb ( struct se_cmd * cmd , struct sbc_ops * ops ) ;
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u32 sbc_get_device_rev ( struct se_device * dev ) ;
u32 sbc_get_device_type ( struct se_device * dev ) ;
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sector_t sbc_get_write_same_sectors ( struct se_cmd * cmd ) ;
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sense_reason_t sbc_execute_unmap ( struct se_cmd * cmd ,
sense_reason_t ( * do_unmap_fn ) ( struct se_cmd * cmd , void * priv ,
sector_t lba , sector_t nolb ) ,
void * priv ) ;
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sense_reason_t sbc_dif_verify_write ( struct se_cmd * , sector_t , unsigned int ,
unsigned int , struct scatterlist * , int ) ;
sense_reason_t sbc_dif_verify_read ( struct se_cmd * , sector_t , unsigned int ,
unsigned int , struct scatterlist * , int ) ;
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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 */
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void * transport_kmap_data_sg ( struct se_cmd * ) ;
void transport_kunmap_data_sg ( struct se_cmd * ) ;
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/* 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 ) ;
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void array_free ( void * array , int n ) ;
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# endif /* TARGET_CORE_BACKEND_H */