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[mv-sheeva.git] / 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 core_scsi2_emulate_crh(struct se_cmd *);
51 extern int core_scsi3_alloc_aptpl_registration(
52                         struct t10_reservation_template *, u64,
53                         unsigned char *, unsigned char *, u32,
54                         unsigned char *, u16, u32, int, int, u8);
55 extern int core_scsi3_check_aptpl_registration(struct se_device *,
56                         struct se_portal_group *, struct se_lun *,
57                         struct se_lun_acl *);
58 extern void core_scsi3_free_pr_reg_from_nacl(struct se_device *,
59                                              struct se_node_acl *);
60 extern void core_scsi3_free_all_registrations(struct se_device *);
61 extern unsigned char *core_scsi3_pr_dump_type(int);
62 extern int core_scsi3_check_cdb_abort_and_preempt(struct list_head *,
63                                                   struct se_cmd *);
64 extern int core_scsi3_emulate_pr(struct se_cmd *);
65 extern int core_setup_reservations(struct se_device *, int);
66
67 #endif /* TARGET_CORE_PR_H */