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author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-18 15:59:18 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-18 15:59:18 -0800 |
commit | 4ba3069fea9f0771dad3f4906b305ab50d5a1b30 (patch) | |
tree | 3f75f2c0a320a6f38538c5e63f46ef79b0b3f1d1 /include/target/target_core_backend.h | |
parent | 507a03c1cba0e32309223d23d19a1bfc0916c140 (diff) | |
parent | 895f3022523361e9b383cf48f51feb1f7d5e7e53 (diff) |
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (26 commits)
target: Set additional sense length field in sense data
target: Remove legacy device status check from transport_execute_tasks
target: Remove __transport_execute_tasks() for each processing context
target: Remove extra se_device->execute_task_lock access in fast path
target: Drop se_device TCQ queue_depth usage from I/O path
target: Fix possible NULL pointer with __transport_execute_tasks
target: Remove TFO->check_release_cmd() fabric API caller
tcm_fc: Convert ft_send_work to use target_submit_cmd
target: Add target_submit_cmd() for process context fabric submission
target: Make target_put_sess_cmd use target_release_cmd_kref
target: Set response format in INQUIRY response
target: tcm_mod_builder: small fixups
Documentation/target: Fix tcm_mod_builder.py build breakage
target: remove overagressive ____cacheline_aligned annoations
tcm_loop: bump max_sectors
target/configs: remove trailing newline from udev_path and alias
iscsi-target: fix chap identifier simple_strtoul usage
target: remove useless casts
target: simplify target_check_cdb_and_preempt
target: Move core_scsi3_check_cdb_abort_and_preempt
...
Diffstat (limited to 'include/target/target_core_backend.h')
-rw-r--r-- | include/target/target_core_backend.h | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/include/target/target_core_backend.h b/include/target/target_core_backend.h new file mode 100644 index 00000000000..4866499bdee --- /dev/null +++ b/include/target/target_core_backend.h @@ -0,0 +1,65 @@ +#ifndef TARGET_CORE_BACKEND_H +#define TARGET_CORE_BACKEND_H + +#define TRANSPORT_PLUGIN_PHBA_PDEV 1 +#define TRANSPORT_PLUGIN_VHBA_PDEV 2 +#define TRANSPORT_PLUGIN_VHBA_VDEV 3 + +struct se_subsystem_api { + struct list_head sub_api_list; + + char name[16]; + struct module *owner; + + u8 transport_type; + + unsigned int fua_write_emulated : 1; + unsigned int write_cache_emulated : 1; + + int (*attach_hba)(struct se_hba *, u32); + void (*detach_hba)(struct se_hba *); + int (*pmode_enable_hba)(struct se_hba *, unsigned long); + void *(*allocate_virtdevice)(struct se_hba *, const char *); + struct se_device *(*create_virtdevice)(struct se_hba *, + struct se_subsystem_dev *, void *); + void (*free_device)(void *); + int (*transport_complete)(struct se_task *task); + struct se_task *(*alloc_task)(unsigned char *cdb); + int (*do_task)(struct se_task *); + int (*do_discard)(struct se_device *, sector_t, u32); + void (*do_sync_cache)(struct se_task *); + void (*free_task)(struct se_task *); + ssize_t (*check_configfs_dev_params)(struct se_hba *, + struct se_subsystem_dev *); + ssize_t (*set_configfs_dev_params)(struct se_hba *, + struct se_subsystem_dev *, const char *, ssize_t); + ssize_t (*show_configfs_dev_params)(struct se_hba *, + struct se_subsystem_dev *, char *); + u32 (*get_device_rev)(struct se_device *); + u32 (*get_device_type)(struct se_device *); + sector_t (*get_blocks)(struct se_device *); + unsigned char *(*get_sense_buffer)(struct se_task *); +}; + +int transport_subsystem_register(struct se_subsystem_api *); +void transport_subsystem_release(struct se_subsystem_api *); + +struct se_device *transport_add_device_to_core_hba(struct se_hba *, + struct se_subsystem_api *, struct se_subsystem_dev *, u32, + void *, struct se_dev_limits *, const char *, const char *); + +void transport_complete_sync_cache(struct se_cmd *, int); +void transport_complete_task(struct se_task *, int); + +void target_get_task_cdb(struct se_task *, unsigned char *); + +void transport_set_vpd_proto_id(struct t10_vpd *, unsigned char *); +int transport_set_vpd_assoc(struct t10_vpd *, unsigned char *); +int transport_set_vpd_ident_type(struct t10_vpd *, unsigned char *); +int transport_set_vpd_ident(struct t10_vpd *, unsigned char *); + +/* core helpers also used by command snooping in pscsi */ +void *transport_kmap_first_data_page(struct se_cmd *); +void transport_kunmap_first_data_page(struct se_cmd *); + +#endif /* TARGET_CORE_BACKEND_H */ |