Root/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
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_cmd *);
51extern int target_scsi2_reservation_reserve(struct se_cmd *);
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_cmd *);
65extern int target_scsi3_emulate_pr_out(struct se_cmd *);
66extern int core_setup_reservations(struct se_device *, int);
67
68#endif /* TARGET_CORE_PR_H */
69

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