LXR linux/drivers/target/target_core

   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
  46extern struct kmem_cache *t10_pr_reg_cache;
  47
  48extern int core_pr_dump_initiator_port(struct t10_pr_registration *,
  49                        char *, u32);
  50extern int target_scsi2_reservation_release(struct se_task *task);
  51extern int target_scsi2_reservation_reserve(struct se_task *task);
  52extern 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);
  56extern int core_scsi3_check_aptpl_registration(struct se_device *,
  57                        struct se_portal_group *, struct se_lun *,
  58                        struct se_lun_acl *);
  59extern void core_scsi3_free_pr_reg_from_nacl(struct se_device *,
  60                                             struct se_node_acl *);
  61extern void core_scsi3_free_all_registrations(struct se_device *);
  62extern unsigned char *core_scsi3_pr_dump_type(int);
  63
  64extern int target_scsi3_emulate_pr_in(struct se_task *task);
  65extern int target_scsi3_emulate_pr_out(struct se_task *task);
  66extern int core_setup_reservations(struct se_device *, int);
  67
  68#endif /* TARGET_CORE_PR_H */
  69