1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef TARGET_CORE_PR_H
3 #define TARGET_CORE_PR_H
4 
5 #include <linux/types.h>
6 #include <target/target_core_base.h>
7 
8 /*
9  * PERSISTENT_RESERVE_OUT service action codes
10  *
11  * spc5r04b section 6.15.2 Table 174
12  */
13 #define PRO_REGISTER				0x00
14 #define PRO_RESERVE				0x01
15 #define PRO_RELEASE				0x02
16 #define PRO_CLEAR				0x03
17 #define PRO_PREEMPT				0x04
18 #define PRO_PREEMPT_AND_ABORT			0x05
19 #define PRO_REGISTER_AND_IGNORE_EXISTING_KEY	0x06
20 #define PRO_REGISTER_AND_MOVE			0x07
21 #define PRO_REPLACE_LOST_RESERVATION	0x08
22 /*
23  * PERSISTENT_RESERVE_IN service action codes
24  *
25  * spc5r04b section 6.14.1 Table 162
26  */
27 #define PRI_READ_KEYS				0x00
28 #define PRI_READ_RESERVATION			0x01
29 #define PRI_REPORT_CAPABILITIES			0x02
30 #define PRI_READ_FULL_STATUS			0x03
31 /*
32  * PERSISTENT_RESERVE_ SCOPE field
33  *
34  * spc5r04b section 6.14.3.2 Table 166
35  */
36 #define PR_SCOPE_LU_SCOPE			0x00
37 /*
38  * PERSISTENT_RESERVE_* TYPE field
39  *
40  * spc5r04b section 6.14.3.3 Table 167
41  */
42 #define PR_TYPE_WRITE_EXCLUSIVE			0x01
43 #define PR_TYPE_EXCLUSIVE_ACCESS		0x03
44 #define PR_TYPE_WRITE_EXCLUSIVE_REGONLY		0x05
45 #define PR_TYPE_EXCLUSIVE_ACCESS_REGONLY	0x06
46 #define PR_TYPE_WRITE_EXCLUSIVE_ALLREG		0x07
47 #define PR_TYPE_EXCLUSIVE_ACCESS_ALLREG		0x08
48 
49 #define PR_APTPL_MAX_IPORT_LEN			256
50 #define PR_APTPL_MAX_TPORT_LEN			256
51 
52 /*
53  *  Function defined in target_core_spc.c
54  */
55 void spc_gen_naa_6h_vendor_specific(struct se_device *, unsigned char *);
56 
57 extern struct kmem_cache *t10_pr_reg_cache;
58 
59 extern void core_pr_dump_initiator_port(struct t10_pr_registration *,
60 			char *, u32);
61 extern void target_release_reservation(struct se_device *dev);
62 extern sense_reason_t target_scsi2_reservation_release(struct se_cmd *);
63 extern sense_reason_t target_scsi2_reservation_reserve(struct se_cmd *);
64 extern int core_scsi3_alloc_aptpl_registration(
65 			struct t10_reservation *, u64,
66 			unsigned char *, unsigned char *, u64,
67 			unsigned char *, u16, u64, int, int, u8);
68 extern int core_scsi3_check_aptpl_registration(struct se_device *,
69 			struct se_portal_group *, struct se_lun *,
70 			struct se_node_acl *, u64);
71 extern void core_scsi3_free_pr_reg_from_nacl(struct se_device *,
72 					     struct se_node_acl *);
73 extern void core_scsi3_free_all_registrations(struct se_device *);
74 extern unsigned char *core_scsi3_pr_dump_type(int);
75 
76 extern sense_reason_t target_scsi3_emulate_pr_in(struct se_cmd *);
77 extern sense_reason_t target_scsi3_emulate_pr_out(struct se_cmd *);
78 extern sense_reason_t target_check_reservation(struct se_cmd *);
79 
80 #endif /* TARGET_CORE_PR_H */
81