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 *); 26 int (*transport_complete)(struct se_task *task); 27 struct se_task *(*alloc_task)(unsigned char *cdb); 28 int (*do_task)(struct se_task *); 29 int (*do_discard)(struct se_device *, sector_t, u32); 30 void (*do_sync_cache)(struct se_task *); 31 void (*free_task)(struct se_task *); 32 ssize_t (*check_configfs_dev_params)(struct se_hba *, 33 struct se_subsystem_dev *); 34 ssize_t (*set_configfs_dev_params)(struct se_hba *, 35 struct se_subsystem_dev *, const char *, ssize_t); 36 ssize_t (*show_configfs_dev_params)(struct se_hba *, 37 struct se_subsystem_dev *, char *); 38 u32 (*get_device_rev)(struct se_device *); 39 u32 (*get_device_type)(struct se_device *); 40 sector_t (*get_blocks)(struct se_device *); 41 unsigned char *(*get_sense_buffer)(struct se_task *); 42 }; 43 44 int transport_subsystem_register(struct se_subsystem_api *); 45 void transport_subsystem_release(struct se_subsystem_api *); 46 47 struct se_device *transport_add_device_to_core_hba(struct se_hba *, 48 struct se_subsystem_api *, struct se_subsystem_dev *, u32, 49 void *, struct se_dev_limits *, const char *, const char *); 50 51 void transport_complete_sync_cache(struct se_cmd *, int); 52 void transport_complete_task(struct se_task *, int); 53 54 void target_get_task_cdb(struct se_task *, unsigned char *); 55 56 void transport_set_vpd_proto_id(struct t10_vpd *, unsigned char *); 57 int transport_set_vpd_assoc(struct t10_vpd *, unsigned char *); 58 int transport_set_vpd_ident_type(struct t10_vpd *, unsigned char *); 59 int transport_set_vpd_ident(struct t10_vpd *, unsigned char *); 60 61 /* core helpers also used by command snooping in pscsi */ 62 void *transport_kmap_data_sg(struct se_cmd *); 63 void transport_kunmap_data_sg(struct se_cmd *); 64 65 void array_free(void *array, int n); 66 67 #endif /* TARGET_CORE_BACKEND_H */ 68