LXR linux/include/target/target_core

   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
   8struct se_subsystem_api {
   9        struct list_head sub_api_list;
  10
  11        char name[16];
  12        char inquiry_prod[16];
  13        char inquiry_rev[4];
  14        struct module *owner;
  15
  16        u8 transport_type;
  17
  18        int (*attach_hba)(struct se_hba *, u32);
  19        void (*detach_hba)(struct se_hba *);
  20        int (*pmode_enable_hba)(struct se_hba *, unsigned long);
  21
  22        struct se_device *(*alloc_device)(struct se_hba *, const char *);
  23        int (*configure_device)(struct se_device *);
  24        void (*free_device)(struct se_device *device);
  25
  26        ssize_t (*set_configfs_dev_params)(struct se_device *,
  27                                           const char *, ssize_t);
  28        ssize_t (*show_configfs_dev_params)(struct se_device *, char *);
  29
  30        void (*transport_complete)(struct se_cmd *cmd,
  31                                   struct scatterlist *,
  32                                   unsigned char *);
  33
  34        sense_reason_t (*parse_cdb)(struct se_cmd *cmd);
  35        u32 (*get_device_type)(struct se_device *);
  36        sector_t (*get_blocks)(struct se_device *);
  37        unsigned char *(*get_sense_buffer)(struct se_cmd *);
  38        bool (*get_write_cache)(struct se_device *);
  39};
  40
  41struct sbc_ops {
  42        sense_reason_t (*execute_rw)(struct se_cmd *cmd);
  43        sense_reason_t (*execute_sync_cache)(struct se_cmd *cmd);
  44        sense_reason_t (*execute_write_same)(struct se_cmd *cmd);
  45        sense_reason_t (*execute_write_same_unmap)(struct se_cmd *cmd);
  46        sense_reason_t (*execute_unmap)(struct se_cmd *cmd);
  47};
  48
  49int     transport_subsystem_register(struct se_subsystem_api *);
  50void    transport_subsystem_release(struct se_subsystem_api *);
  51
  52void    target_complete_cmd(struct se_cmd *, u8);
  53
  54sense_reason_t  spc_parse_cdb(struct se_cmd *cmd, unsigned int *size);
  55sense_reason_t  spc_emulate_report_luns(struct se_cmd *cmd);
  56sense_reason_t  spc_emulate_inquiry_std(struct se_cmd *, unsigned char *);
  57sense_reason_t  spc_emulate_evpd_83(struct se_cmd *, unsigned char *);
  58
  59sense_reason_t  sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops);
  60u32     sbc_get_device_rev(struct se_device *dev);
  61u32     sbc_get_device_type(struct se_device *dev);
  62sector_t        sbc_get_write_same_sectors(struct se_cmd *cmd);
  63sense_reason_t sbc_execute_unmap(struct se_cmd *cmd,
  64        sense_reason_t (*do_unmap_fn)(struct se_cmd *cmd, void *priv,
  65                                      sector_t lba, sector_t nolb),
  66        void *priv);
  67
  68void    transport_set_vpd_proto_id(struct t10_vpd *, unsigned char *);
  69int     transport_set_vpd_assoc(struct t10_vpd *, unsigned char *);
  70int     transport_set_vpd_ident_type(struct t10_vpd *, unsigned char *);
  71int     transport_set_vpd_ident(struct t10_vpd *, unsigned char *);
  72
  73/* core helpers also used by command snooping in pscsi */
  74void    *transport_kmap_data_sg(struct se_cmd *);
  75void    transport_kunmap_data_sg(struct se_cmd *);
  76
  77void    array_free(void *array, int n);
  78
  79#endif /* TARGET_CORE_BACKEND_H */
  80