drivers/target/target_core_pr.h

   1 #ifndef TARGET_CORE_PR_H
   2 #define TARGET_CORE_PR_H
   3 /*
   4  * PERSISTENT_RESERVE_OUT service action codes
   5  *
   6  * spc4r17 section 6.14.2 Table 171
   7  */
   8 #define PRO_REGISTER                            0x00
   9 #define PRO_RESERVE                             0x01
  10 #define PRO_RELEASE                             0x02
  11 #define PRO_CLEAR                               0x03
  12 #define PRO_PREEMPT                             0x04
  13 #define PRO_PREEMPT_AND_ABORT                   0x05
  14 #define PRO_REGISTER_AND_IGNORE_EXISTING_KEY    0x06
  15 #define PRO_REGISTER_AND_MOVE                   0x07
  16 /*
  17  * PERSISTENT_RESERVE_IN service action codes
  18  *
  19  * spc4r17 section 6.13.1 Table 159
  20  */
  21 #define PRI_READ_KEYS                           0x00
  22 #define PRI_READ_RESERVATION                    0x01
  23 #define PRI_REPORT_CAPABILITIES                 0x02
  24 #define PRI_READ_FULL_STATUS                    0x03
  25 /*
  26  * PERSISTENT_RESERVE_ SCOPE field
  27  *
  28  * spc4r17 section 6.13.3.3 Table 163
  29  */
  30 #define PR_SCOPE_LU_SCOPE                       0x00
  31 /*
  32  * PERSISTENT_RESERVE_* TYPE field
  33  *
  34  * spc4r17 section 6.13.3.4 Table 164
  35  */
  36 #define PR_TYPE_WRITE_EXCLUSIVE                 0x01
  37 #define PR_TYPE_EXCLUSIVE_ACCESS                0x03
  38 #define PR_TYPE_WRITE_EXCLUSIVE_REGONLY         0x05
  39 #define PR_TYPE_EXCLUSIVE_ACCESS_REGONLY        0x06
  40 #define PR_TYPE_WRITE_EXCLUSIVE_ALLREG          0x07
  41 #define PR_TYPE_EXCLUSIVE_ACCESS_ALLREG         0x08
  42
  43 #define PR_APTPL_MAX_IPORT_LEN                  256
  44 #define PR_APTPL_MAX_TPORT_LEN                  256
  45
  46 extern struct kmem_cache *t10_pr_reg_cache;
  47
  48 extern int core_pr_dump_initiator_port(struct t10_pr_registration *,
  49                         char *, u32);
  50 extern int target_scsi2_reservation_release(struct se_task *task);
  51 extern int target_scsi2_reservation_reserve(struct se_task *task);
  52 extern int core_scsi3_alloc_aptpl_registration(
  53                         struct t10_reservation *, u64,
  54                         unsigned char *, unsigned char *, u32,
  55                         unsigned char *, u16, u32, int, int, u8);
  56 extern int core_scsi3_check_aptpl_registration(struct se_device *,
  57                         struct se_portal_group *, struct se_lun *,
  58                         struct se_lun_acl *);
  59 extern void core_scsi3_free_pr_reg_from_nacl(struct se_device *,
  60                                              struct se_node_acl *);
  61 extern void core_scsi3_free_all_registrations(struct se_device *);
  62 extern unsigned char *core_scsi3_pr_dump_type(int);
  63 extern int core_scsi3_check_cdb_abort_and_preempt(struct list_head *,
  64                                                   struct se_cmd *);
  65
  66 extern int target_scsi3_emulate_pr_in(struct se_task *task);
  67 extern int target_scsi3_emulate_pr_out(struct se_task *task);
  68 extern int core_setup_reservations(struct se_device *, int);
  69
  70 #endif /* TARGET_CORE_PR_H */