LXR linux/drivers/target/target_core

   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 */
  55void spc_parse_naa_6h_vendor_specific(struct se_device *, unsigned char *);
  56
  57extern struct kmem_cache *t10_pr_reg_cache;
  58
  59extern void core_pr_dump_initiator_port(struct t10_pr_registration *,
  60                        char *, u32);
  61extern sense_reason_t target_scsi2_reservation_release(struct se_cmd *);
  62extern sense_reason_t target_scsi2_reservation_reserve(struct se_cmd *);
  63extern int core_scsi3_alloc_aptpl_registration(
  64                        struct t10_reservation *, u64,
  65                        unsigned char *, unsigned char *, u64,
  66                        unsigned char *, u16, u64, int, int, u8);
  67extern int core_scsi3_check_aptpl_registration(struct se_device *,
  68                        struct se_portal_group *, struct se_lun *,
  69                        struct se_node_acl *, u64);
  70extern void core_scsi3_free_pr_reg_from_nacl(struct se_device *,
  71                                             struct se_node_acl *);
  72extern void core_scsi3_free_all_registrations(struct se_device *);
  73extern unsigned char *core_scsi3_pr_dump_type(int);
  74
  75extern sense_reason_t target_scsi3_emulate_pr_in(struct se_cmd *);
  76extern sense_reason_t target_scsi3_emulate_pr_out(struct se_cmd *);
  77extern sense_reason_t target_check_reservation(struct se_cmd *);
  78
  79#endif /* TARGET_CORE_PR_H */
  80