[SCSI] target: Add LIO target core v4.0.0-rc6
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>
2010-12-17 22:11:26 +03:00
# ifndef TARGET_CORE_PSCSI_H
# define TARGET_CORE_PSCSI_H
# define PSCSI_VERSION "v4.0"
/* used in pscsi_find_alloc_len() */
# ifndef INQUIRY_DATA_SIZE
# define INQUIRY_DATA_SIZE 0x24
# endif
/* used in pscsi_add_device_to_list() */
# define PSCSI_DEFAULT_QUEUEDEPTH 1
# define PS_RETRY 5
# define PS_TIMEOUT_DISK (15*HZ)
# define PS_TIMEOUT_OTHER (500*HZ)
# include <linux/device.h>
# include <scsi/scsi_driver.h>
# include <scsi/scsi_device.h>
# include <linux/kref.h>
# include <linux/kobject.h>
struct pscsi_plugin_task {
struct se_task pscsi_task ;
unsigned char pscsi_sense [ SCSI_SENSE_BUFFERSIZE ] ;
int pscsi_direction ;
int pscsi_result ;
u32 pscsi_resid ;
struct request * pscsi_req ;
2011-06-08 21:36:43 +04:00
unsigned char pscsi_cdb [ 0 ] ;
[SCSI] target: Add LIO target core v4.0.0-rc6
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>
2010-12-17 22:11:26 +03:00
} ____cacheline_aligned ;
# define PDF_HAS_CHANNEL_ID 0x01
# define PDF_HAS_TARGET_ID 0x02
# define PDF_HAS_LUN_ID 0x04
# define PDF_HAS_VPD_UNIT_SERIAL 0x08
# define PDF_HAS_VPD_DEV_IDENT 0x10
# define PDF_HAS_VIRT_HOST_ID 0x20
struct pscsi_dev_virt {
int pdv_flags ;
int pdv_host_id ;
int pdv_channel_id ;
int pdv_target_id ;
int pdv_lun_id ;
struct block_device * pdv_bd ;
struct scsi_device * pdv_sd ;
struct se_hba * pdv_se_hba ;
} ____cacheline_aligned ;
typedef enum phv_modes {
PHV_VIRUTAL_HOST_ID ,
PHV_LLD_SCSI_HOST_NO
} phv_modes_t ;
struct pscsi_hba_virt {
int phv_host_id ;
phv_modes_t phv_mode ;
struct Scsi_Host * phv_lld_host ;
} ____cacheline_aligned ;
# endif /*** TARGET_CORE_PSCSI_H ***/