drivers/target/target_core_pr.h

   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 */