target_core_pr.h

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#ifndef TARGET_CORE_PR_H
#define TARGET_CORE_PR_H
/*
 * PERSISTENT_RESERVE_OUT service action codes
 *
 * spc4r17 section 6.14.2 Table 171
 */
#define PRO_REGISTER                0x00
#define PRO_RESERVE             0x01
#define PRO_RELEASE             0x02
#define PRO_CLEAR               0x03
#define PRO_PREEMPT             0x04
#define PRO_PREEMPT_AND_ABORT           0x05
#define PRO_REGISTER_AND_IGNORE_EXISTING_KEY    0x06
#define PRO_REGISTER_AND_MOVE           0x07
/*
 * PERSISTENT_RESERVE_IN service action codes
 *
 * spc4r17 section 6.13.1 Table 159
 */
#define PRI_READ_KEYS               0x00
#define PRI_READ_RESERVATION            0x01
#define PRI_REPORT_CAPABILITIES         0x02
#define PRI_READ_FULL_STATUS            0x03
/*
 * PERSISTENT_RESERVE_ SCOPE field
 *
 * spc4r17 section 6.13.3.3 Table 163
 */
#define PR_SCOPE_LU_SCOPE           0x00
/*
 * PERSISTENT_RESERVE_* TYPE field
 *
 * spc4r17 section 6.13.3.4 Table 164
 */
#define PR_TYPE_WRITE_EXCLUSIVE         0x01
#define PR_TYPE_EXCLUSIVE_ACCESS        0x03
#define PR_TYPE_WRITE_EXCLUSIVE_REGONLY     0x05
#define PR_TYPE_EXCLUSIVE_ACCESS_REGONLY    0x06
#define PR_TYPE_WRITE_EXCLUSIVE_ALLREG      0x07
#define PR_TYPE_EXCLUSIVE_ACCESS_ALLREG     0x08

#define PR_APTPL_MAX_IPORT_LEN          256
#define PR_APTPL_MAX_TPORT_LEN          256

extern struct kmem_cache *t10_pr_reg_cache;

extern int core_pr_dump_initiator_port(struct t10_pr_registration *,
            char *, u32);
extern int target_scsi2_reservation_release(struct se_cmd *);
extern int target_scsi2_reservation_reserve(struct se_cmd *);
extern int core_scsi3_alloc_aptpl_registration(
            struct t10_reservation *, u64,
            unsigned char *, unsigned char *, u32,
            unsigned char *, u16, u32, int, int, u8);
extern int core_scsi3_check_aptpl_registration(struct se_device *,
            struct se_portal_group *, struct se_lun *,
            struct se_lun_acl *);
extern void core_scsi3_free_pr_reg_from_nacl(struct se_device *,
                         struct se_node_acl *);
extern void core_scsi3_free_all_registrations(struct se_device *);
extern unsigned char *core_scsi3_pr_dump_type(int);

extern int target_scsi3_emulate_pr_in(struct se_cmd *);
extern int target_scsi3_emulate_pr_out(struct se_cmd *);
extern int core_setup_reservations(struct se_device *, int);

#endif /* TARGET_CORE_PR_H */