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LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
62 lines
3.4 KiB
C
62 lines
3.4 KiB
C
#ifndef TARGET_CORE_DEVICE_H
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#define TARGET_CORE_DEVICE_H
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extern int transport_get_lun_for_cmd(struct se_cmd *, unsigned char *, u32);
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extern int transport_get_lun_for_tmr(struct se_cmd *, u32);
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extern struct se_dev_entry *core_get_se_deve_from_rtpi(
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struct se_node_acl *, u16);
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extern int core_free_device_list_for_node(struct se_node_acl *,
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struct se_portal_group *);
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extern void core_dec_lacl_count(struct se_node_acl *, struct se_cmd *);
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extern void core_update_device_list_access(u32, u32, struct se_node_acl *);
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extern int core_update_device_list_for_node(struct se_lun *, struct se_lun_acl *, u32,
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u32, struct se_node_acl *,
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struct se_portal_group *, int);
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extern void core_clear_lun_from_tpg(struct se_lun *, struct se_portal_group *);
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extern int core_dev_export(struct se_device *, struct se_portal_group *,
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struct se_lun *);
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extern void core_dev_unexport(struct se_device *, struct se_portal_group *,
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struct se_lun *);
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extern int transport_core_report_lun_response(struct se_cmd *);
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extern void se_release_device_for_hba(struct se_device *);
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extern void se_release_vpd_for_dev(struct se_device *);
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extern void se_clear_dev_ports(struct se_device *);
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extern int se_free_virtual_device(struct se_device *, struct se_hba *);
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extern int se_dev_check_online(struct se_device *);
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extern int se_dev_check_shutdown(struct se_device *);
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extern void se_dev_set_default_attribs(struct se_device *, struct se_dev_limits *);
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extern int se_dev_set_task_timeout(struct se_device *, u32);
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extern int se_dev_set_max_unmap_lba_count(struct se_device *, u32);
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extern int se_dev_set_max_unmap_block_desc_count(struct se_device *, u32);
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extern int se_dev_set_unmap_granularity(struct se_device *, u32);
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extern int se_dev_set_unmap_granularity_alignment(struct se_device *, u32);
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extern int se_dev_set_emulate_dpo(struct se_device *, int);
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extern int se_dev_set_emulate_fua_write(struct se_device *, int);
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extern int se_dev_set_emulate_fua_read(struct se_device *, int);
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extern int se_dev_set_emulate_write_cache(struct se_device *, int);
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extern int se_dev_set_emulate_ua_intlck_ctrl(struct se_device *, int);
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extern int se_dev_set_emulate_tas(struct se_device *, int);
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extern int se_dev_set_emulate_tpu(struct se_device *, int);
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extern int se_dev_set_emulate_tpws(struct se_device *, int);
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extern int se_dev_set_enforce_pr_isids(struct se_device *, int);
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extern int se_dev_set_queue_depth(struct se_device *, u32);
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extern int se_dev_set_max_sectors(struct se_device *, u32);
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extern int se_dev_set_optimal_sectors(struct se_device *, u32);
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extern int se_dev_set_block_size(struct se_device *, u32);
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extern struct se_lun *core_dev_add_lun(struct se_portal_group *, struct se_hba *,
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struct se_device *, u32);
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extern int core_dev_del_lun(struct se_portal_group *, u32);
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extern struct se_lun *core_get_lun_from_tpg(struct se_portal_group *, u32);
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extern struct se_lun_acl *core_dev_init_initiator_node_lun_acl(struct se_portal_group *,
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u32, char *, int *);
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extern int core_dev_add_initiator_node_lun_acl(struct se_portal_group *,
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struct se_lun_acl *, u32, u32);
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extern int core_dev_del_initiator_node_lun_acl(struct se_portal_group *,
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struct se_lun *, struct se_lun_acl *);
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extern void core_dev_free_initiator_node_lun_acl(struct se_portal_group *,
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struct se_lun_acl *lacl);
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extern int core_dev_setup_virtual_lun0(void);
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extern void core_dev_release_virtual_lun0(void);
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#endif /* TARGET_CORE_DEVICE_H */
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