linux-next/drivers/target/target_core_pr.h
Sergey Samoylenko 17f947b8b0 scsi: target: core: Unify NAA identifier generation
Both the INQUIRY handling and the XCOPY implementation provide functions to
generate an NAA designator. In addition, these functions are poorly named:

 - spc_parse_naa_6h_vendor_specific()
 - target_xcopy_gen_naa_ieee()

Introduce a common NAA 6 designator generation function,
spc_gen_naa_6h_vendor_specific().

Link: https://lore.kernel.org/r/20210420185920.42431-2-s.samoylenko@yadro.com
Signed-off-by: Sergey Samoylenko <s.samoylenko@yadro.com>
Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-05-15 14:14:28 -04:00

81 lines
2.5 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef TARGET_CORE_PR_H
#define TARGET_CORE_PR_H
#include <linux/types.h>
#include <target/target_core_base.h>
/*
* PERSISTENT_RESERVE_OUT service action codes
*
* spc5r04b section 6.15.2 Table 174
*/
#define PRO_REGISTER 0x00
#define PRO_RESERVE 0x01
#define PRO_RELEASE 0x02
#define PRO_CLEAR 0x03
#define PRO_PREEMPT 0x04
#define PRO_PREEMPT_AND_ABORT 0x05
#define PRO_REGISTER_AND_IGNORE_EXISTING_KEY 0x06
#define PRO_REGISTER_AND_MOVE 0x07
#define PRO_REPLACE_LOST_RESERVATION 0x08
/*
* PERSISTENT_RESERVE_IN service action codes
*
* spc5r04b section 6.14.1 Table 162
*/
#define PRI_READ_KEYS 0x00
#define PRI_READ_RESERVATION 0x01
#define PRI_REPORT_CAPABILITIES 0x02
#define PRI_READ_FULL_STATUS 0x03
/*
* PERSISTENT_RESERVE_ SCOPE field
*
* spc5r04b section 6.14.3.2 Table 166
*/
#define PR_SCOPE_LU_SCOPE 0x00
/*
* PERSISTENT_RESERVE_* TYPE field
*
* spc5r04b section 6.14.3.3 Table 167
*/
#define PR_TYPE_WRITE_EXCLUSIVE 0x01
#define PR_TYPE_EXCLUSIVE_ACCESS 0x03
#define PR_TYPE_WRITE_EXCLUSIVE_REGONLY 0x05
#define PR_TYPE_EXCLUSIVE_ACCESS_REGONLY 0x06
#define PR_TYPE_WRITE_EXCLUSIVE_ALLREG 0x07
#define PR_TYPE_EXCLUSIVE_ACCESS_ALLREG 0x08
#define PR_APTPL_MAX_IPORT_LEN 256
#define PR_APTPL_MAX_TPORT_LEN 256
/*
* Function defined in target_core_spc.c
*/
void spc_gen_naa_6h_vendor_specific(struct se_device *, unsigned char *);
extern struct kmem_cache *t10_pr_reg_cache;
extern void core_pr_dump_initiator_port(struct t10_pr_registration *,
char *, u32);
extern void target_release_reservation(struct se_device *dev);
extern sense_reason_t target_scsi2_reservation_release(struct se_cmd *);
extern sense_reason_t target_scsi2_reservation_reserve(struct se_cmd *);
extern int core_scsi3_alloc_aptpl_registration(
struct t10_reservation *, u64,
unsigned char *, unsigned char *, u64,
unsigned char *, u16, u64, int, int, u8);
extern int core_scsi3_check_aptpl_registration(struct se_device *,
struct se_portal_group *, struct se_lun *,
struct se_node_acl *, u64);
extern void core_scsi3_free_pr_reg_from_nacl(struct se_device *,
struct se_node_acl *);
extern void core_scsi3_free_all_registrations(struct se_device *);
extern unsigned char *core_scsi3_pr_dump_type(int);
extern sense_reason_t target_scsi3_emulate_pr_in(struct se_cmd *);
extern sense_reason_t target_scsi3_emulate_pr_out(struct se_cmd *);
extern sense_reason_t target_check_reservation(struct se_cmd *);
#endif /* TARGET_CORE_PR_H */