include/target/target_core_backend.h

   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 #endif /* TARGET_CORE_BACKEND_H */