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linux-next/drivers/target/target_core_pr.h
Nicholas Bellinger e24805637d target: Fix APTPL metadata handling for dynamic MappedLUNs
This patch fixes a bug in handling of SPC-3 PR Activate Persistence
across Target Power Loss (APTPL) logic where re-creation of state for
MappedLUNs from dynamically generated NodeACLs did not occur during
I_T Nexus establishment.

It adds the missing core_scsi3_check_aptpl_registration() call during
core_tpg_check_initiator_node_acl() -> core_tpg_add_node_to_devs() in
order to replay any pre-loaded APTPL metadata state associated with
the newly connected SCSI Initiator Port.

Cc: Mike Christie <michaelc@cs.wisc.edu>
Cc: <stable@vger.kernel.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-10-04 05:40:19 +00:00

74 lines
2.3 KiB
C

#ifndef TARGET_CORE_PR_H
#define TARGET_CORE_PR_H
/*
* PERSISTENT_RESERVE_OUT service action codes
*
* spc4r17 section 6.14.2 Table 171
*/
#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
/*
* PERSISTENT_RESERVE_IN service action codes
*
* spc4r17 section 6.13.1 Table 159
*/
#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
*
* spc4r17 section 6.13.3.3 Table 163
*/
#define PR_SCOPE_LU_SCOPE 0x00
/*
* PERSISTENT_RESERVE_* TYPE field
*
* spc4r17 section 6.13.3.4 Table 164
*/
#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_parse_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 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 *, u32,
unsigned char *, u16, u32, int, int, u8);
extern int core_scsi3_check_aptpl_registration(struct se_device *,
struct se_portal_group *, struct se_lun *,
struct se_node_acl *, u32);
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 */