diff options
Diffstat (limited to 'include/target')
| -rw-r--r-- | include/target/target_core_backend.h | 65 | ||||
| -rw-r--r-- | include/target/target_core_base.h | 91 | ||||
| -rw-r--r-- | include/target/target_core_device.h | 9 | ||||
| -rw-r--r-- | include/target/target_core_fabric.h (renamed from include/target/target_core_fabric_ops.h) | 88 | ||||
| -rw-r--r-- | include/target/target_core_fabric_lib.h | 28 | ||||
| -rw-r--r-- | include/target/target_core_tmr.h | 31 | ||||
| -rw-r--r-- | include/target/target_core_tpg.h | 22 | ||||
| -rw-r--r-- | include/target/target_core_transport.h | 256 |
8 files changed, 242 insertions, 348 deletions
diff --git a/include/target/target_core_backend.h b/include/target/target_core_backend.h new file mode 100644 index 000000000000..4866499bdeeb --- /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 */ diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h index 6873c7dd9145..1d90fb33e60b 100644 --- a/include/target/target_core_base.h +++ b/include/target/target_core_base.h @@ -10,6 +10,7 @@ #include <net/tcp.h> #define TARGET_CORE_MOD_VERSION "v4.1.0-rc1-ml" +#define TARGET_CORE_VERSION TARGET_CORE_MOD_VERSION /* Maximum Number of LUNs per Target Portal Group */ /* Don't raise above 511 or REPORT_LUNS needs to handle >1 page */ @@ -53,6 +54,72 @@ /* Used by transport_get_inquiry_vpd_device_ident() */ #define INQUIRY_VPD_DEVICE_IDENTIFIER_LEN 254 +/* Attempts before moving from SHORT to LONG */ +#define PYX_TRANSPORT_WINDOW_CLOSED_THRESHOLD 3 +#define PYX_TRANSPORT_WINDOW_CLOSED_WAIT_SHORT 3 /* In milliseconds */ +#define PYX_TRANSPORT_WINDOW_CLOSED_WAIT_LONG 10 /* In milliseconds */ + +#define PYX_TRANSPORT_STATUS_INTERVAL 5 /* In seconds */ + +/* + * struct se_subsystem_dev->su_dev_flags +*/ +#define SDF_FIRMWARE_VPD_UNIT_SERIAL 0x00000001 +#define SDF_EMULATED_VPD_UNIT_SERIAL 0x00000002 +#define SDF_USING_UDEV_PATH 0x00000004 +#define SDF_USING_ALIAS 0x00000008 + +/* + * struct se_device->dev_flags + */ +#define DF_READ_ONLY 0x00000001 +#define DF_SPC2_RESERVATIONS 0x00000002 +#define DF_SPC2_RESERVATIONS_WITH_ISID 0x00000004 + +/* struct se_dev_attrib sanity values */ +/* Default max_unmap_lba_count */ +#define DA_MAX_UNMAP_LBA_COUNT 0 +/* Default max_unmap_block_desc_count */ +#define DA_MAX_UNMAP_BLOCK_DESC_COUNT 0 +/* Default unmap_granularity */ +#define DA_UNMAP_GRANULARITY_DEFAULT 0 +/* Default unmap_granularity_alignment */ +#define DA_UNMAP_GRANULARITY_ALIGNMENT_DEFAULT 0 +/* Emulation for Direct Page Out */ +#define DA_EMULATE_DPO 0 +/* Emulation for Forced Unit Access WRITEs */ +#define DA_EMULATE_FUA_WRITE 1 +/* Emulation for Forced Unit Access READs */ +#define DA_EMULATE_FUA_READ 0 +/* Emulation for WriteCache and SYNCHRONIZE_CACHE */ +#define DA_EMULATE_WRITE_CACHE 0 +/* Emulation for UNIT ATTENTION Interlock Control */ +#define DA_EMULATE_UA_INTLLCK_CTRL 0 +/* Emulation for TASK_ABORTED status (TAS) by default */ +#define DA_EMULATE_TAS 1 +/* Emulation for Thin Provisioning UNMAP using block/blk-lib.c:blkdev_issue_discard() */ +#define DA_EMULATE_TPU 0 +/* + * Emulation for Thin Provisioning WRITE_SAME w/ UNMAP=1 bit using + * block/blk-lib.c:blkdev_issue_discard() + */ +#define DA_EMULATE_TPWS 0 +/* No Emulation for PSCSI by default */ +#define DA_EMULATE_RESERVATIONS 0 +/* No Emulation for PSCSI by default */ +#define DA_EMULATE_ALUA 0 +/* Enforce SCSI Initiator Port TransportID with 'ISID' for PR */ +#define DA_ENFORCE_PR_ISIDS 1 +#define DA_STATUS_MAX_SECTORS_MIN 16 +#define DA_STATUS_MAX_SECTORS_MAX 8192 +/* By default don't report non-rotating (solid state) medium */ +#define DA_IS_NONROT 0 +/* Queue Algorithm Modifier default for restricted reordering in control mode page */ +#define DA_EMULATE_REST_REORD 0 + +#define SE_MODE_PAGE_BUF 512 + + /* struct se_hba->hba_flags */ enum hba_flags_table { HBA_FLAGS_INTERNAL_USE = 0x01, @@ -158,6 +225,30 @@ enum tcm_sense_reason_table { TCM_RESERVATION_CONFLICT = 0x10, }; +/* fabric independent task management function values */ +enum tcm_tmreq_table { + TMR_ABORT_TASK = 1, + TMR_ABORT_TASK_SET = 2, + TMR_CLEAR_ACA = 3, + TMR_CLEAR_TASK_SET = 4, + TMR_LUN_RESET = 5, + TMR_TARGET_WARM_RESET = 6, + TMR_TARGET_COLD_RESET = 7, + TMR_FABRIC_TMR = 255, +}; + +/* fabric independent task management response values */ +enum tcm_tmrsp_table { + TMR_FUNCTION_COMPLETE = 0, + TMR_TASK_DOES_NOT_EXIST = 1, + TMR_LUN_DOES_NOT_EXIST = 2, + TMR_TASK_STILL_ALLEGIANT = 3, + TMR_TASK_FAILOVER_NOT_SUPPORTED = 4, + TMR_TASK_MGMT_FUNCTION_NOT_SUPPORTED = 5, + TMR_FUNCTION_AUTHORIZATION_FAILED = 6, + TMR_FUNCTION_REJECTED = 255, +}; + struct se_obj { atomic_t obj_access_count; } ____cacheline_aligned; diff --git a/include/target/target_core_device.h b/include/target/target_core_device.h deleted file mode 100644 index c6123a49014d..000000000000 --- a/include/target/target_core_device.h +++ /dev/null @@ -1,9 +0,0 @@ -#ifndef TARGET_CORE_DEVICE_H -#define TARGET_CORE_DEVICE_H - - -// external -extern int transport_lookup_cmd_lun(struct se_cmd *, u32); -extern int transport_lookup_tmr_lun(struct se_cmd *, u32); - -#endif /* TARGET_CORE_DEVICE_H */ diff --git a/include/target/target_core_fabric_ops.h b/include/target/target_core_fabric.h index 0256825f923d..d035d865dbef 100644 --- a/include/target/target_core_fabric_ops.h +++ b/include/target/target_core_fabric.h @@ -1,5 +1,5 @@ -/* Defined in target_core_configfs.h */ -struct target_fabric_configfs; +#ifndef TARGET_CORE_FABRIC_H +#define TARGET_CORE_FABRIC_H struct target_core_fabric_ops { struct configfs_subsystem *tf_subsys; @@ -103,3 +103,87 @@ struct target_core_fabric_ops { struct config_group *, const char *); void (*fabric_drop_nodeacl)(struct se_node_acl *); }; + +struct se_session *transport_init_session(void); +void __transport_register_session(struct se_portal_group *, + struct se_node_acl *, struct se_session *, void *); +void transport_register_session(struct se_portal_group *, + struct se_node_acl *, struct se_session *, void *); +void transport_free_session(struct se_session *); +void transport_deregister_session_configfs(struct se_session *); +void transport_deregister_session(struct se_session *); + + +void transport_init_se_cmd(struct se_cmd *, struct target_core_fabric_ops *, + struct se_session *, u32, int, int, unsigned char *); +int transport_lookup_cmd_lun(struct se_cmd *, u32); +int transport_generic_allocate_tasks(struct se_cmd *, unsigned char *); +int transport_handle_cdb_direct(struct se_cmd *); +int transport_generic_handle_cdb_map(struct se_cmd *); +int transport_generic_handle_data(struct se_cmd *); +int transport_generic_map_mem_to_cmd(struct se_cmd *cmd, + struct scatterlist *, u32, struct scatterlist *, u32); +void transport_do_task_sg_chain(struct se_cmd *); +int transport_generic_new_cmd(struct se_cmd *); + +void transport_generic_process_write(struct se_cmd *); + +void transport_generic_free_cmd(struct se_cmd *, int); + +bool transport_wait_for_tasks(struct se_cmd *); +int transport_check_aborted_status(struct se_cmd *, int); +int transport_send_check_condition_and_sense(struct se_cmd *, u8, int); + +void target_get_sess_cmd(struct se_session *, struct se_cmd *); +int target_put_sess_cmd(struct se_session *, struct se_cmd *); +void target_splice_sess_cmd_list(struct se_session *); +void target_wait_for_sess_cmds(struct se_session *, int); + +int core_alua_check_nonop_delay(struct se_cmd *); + +struct se_tmr_req *core_tmr_alloc_req(struct se_cmd *, void *, u8, gfp_t); +void core_tmr_release_req(struct se_tmr_req *); +int transport_generic_handle_tmr(struct se_cmd *); +int transport_lookup_tmr_lun(struct se_cmd *, u32); + +struct se_node_acl *core_tpg_check_initiator_node_acl(struct se_portal_group *, + unsigned char *); +void core_tpg_clear_object_luns(struct se_portal_group *); +struct se_node_acl *core_tpg_add_initiator_node_acl(struct se_portal_group *, + struct se_node_acl *, const char *, u32); +int core_tpg_del_initiator_node_acl(struct se_portal_group *, + struct se_node_acl *, int); +int core_tpg_set_initiator_node_queue_depth(struct se_portal_group *, + unsigned char *, u32, int); +int core_tpg_register(struct target_core_fabric_ops *, struct se_wwn *, + struct se_portal_group *, void *, int); +int core_tpg_deregister(struct se_portal_group *); + +/* SAS helpers */ +u8 sas_get_fabric_proto_ident(struct se_portal_group *); +u32 sas_get_pr_transport_id(struct se_portal_group *, struct se_node_acl *, + struct t10_pr_registration *, int *, unsigned char *); +u32 sas_get_pr_transport_id_len(struct se_portal_group *, struct se_node_acl *, + struct t10_pr_registration *, int *); +char *sas_parse_pr_out_transport_id(struct se_portal_group *, const char *, + u32 *, char **); + +/* FC helpers */ +u8 fc_get_fabric_proto_ident(struct se_portal_group *); +u32 fc_get_pr_transport_id(struct se_portal_group *, struct se_node_acl *, + struct t10_pr_registration *, int *, unsigned char *); +u32 fc_get_pr_transport_id_len(struct se_portal_group *, struct se_node_acl *, + struct t10_pr_registration *, int *); +char *fc_parse_pr_out_transport_id(struct se_portal_group *, const char *, + u32 *, char **); + +/* iSCSI helpers */ +u8 iscsi_get_fabric_proto_ident(struct se_portal_group *); +u32 iscsi_get_pr_transport_id(struct se_portal_group *, struct se_node_acl *, + struct t10_pr_registration *, int *, unsigned char *); +u32 iscsi_get_pr_transport_id_len(struct se_portal_group *, struct se_node_acl *, + struct t10_pr_registration *, int *); +char *iscsi_parse_pr_out_transport_id(struct se_portal_group *, const char *, + u32 *, char **); + +#endif /* TARGET_CORE_FABRICH */ diff --git a/include/target/target_core_fabric_lib.h b/include/target/target_core_fabric_lib.h deleted file mode 100644 index c2f8d0e3a03b..000000000000 --- a/include/target/target_core_fabric_lib.h +++ /dev/null @@ -1,28 +0,0 @@ -#ifndef TARGET_CORE_FABRIC_LIB_H -#define TARGET_CORE_FABRIC_LIB_H - -extern u8 sas_get_fabric_proto_ident(struct se_portal_group *); -extern u32 sas_get_pr_transport_id(struct se_portal_group *, struct se_node_acl *, - struct t10_pr_registration *, int *, unsigned char *); -extern u32 sas_get_pr_transport_id_len(struct se_portal_group *, struct se_node_acl *, - struct t10_pr_registration *, int *); -extern char *sas_parse_pr_out_transport_id(struct se_portal_group *, - const char *, u32 *, char **); - -extern u8 fc_get_fabric_proto_ident(struct se_portal_group *); -extern u32 fc_get_pr_transport_id(struct se_portal_group *, struct se_node_acl *, - struct t10_pr_registration *, int *, unsigned char *); -extern u32 fc_get_pr_transport_id_len(struct se_portal_group *, struct se_node_acl *, - struct t10_pr_registration *, int *); -extern char *fc_parse_pr_out_transport_id(struct se_portal_group *, - const char *, u32 *, char **); - -extern u8 iscsi_get_fabric_proto_ident(struct se_portal_group *); -extern u32 iscsi_get_pr_transport_id(struct se_portal_group *, struct se_node_acl *, - struct t10_pr_registration *, int *, unsigned char *); -extern u32 iscsi_get_pr_transport_id_len(struct se_portal_group *, struct se_node_acl *, - struct t10_pr_registration *, int *); -extern char *iscsi_parse_pr_out_transport_id(struct se_portal_group *, - const char *, u32 *, char **); - -#endif /* TARGET_CORE_FABRIC_LIB_H */ diff --git a/include/target/target_core_tmr.h b/include/target/target_core_tmr.h deleted file mode 100644 index 36b3e0de99b4..000000000000 --- a/include/target/target_core_tmr.h +++ /dev/null @@ -1,31 +0,0 @@ -#ifndef TARGET_CORE_TMR_H -#define TARGET_CORE_TMR_H - -/* fabric independent task management function values */ -enum tcm_tmreq_table { - TMR_ABORT_TASK = 1, - TMR_ABORT_TASK_SET = 2, - TMR_CLEAR_ACA = 3, - TMR_CLEAR_TASK_SET = 4, - TMR_LUN_RESET = 5, - TMR_TARGET_WARM_RESET = 6, - TMR_TARGET_COLD_RESET = 7, - TMR_FABRIC_TMR = 255, -}; - -/* fabric independent task management response values */ -enum tcm_tmrsp_table { - TMR_FUNCTION_COMPLETE = 0, - TMR_TASK_DOES_NOT_EXIST = 1, - TMR_LUN_DOES_NOT_EXIST = 2, - TMR_TASK_STILL_ALLEGIANT = 3, - TMR_TASK_FAILOVER_NOT_SUPPORTED = 4, - TMR_TASK_MGMT_FUNCTION_NOT_SUPPORTED = 5, - TMR_FUNCTION_AUTHORIZATION_FAILED = 6, - TMR_FUNCTION_REJECTED = 255, -}; - -extern struct se_tmr_req *core_tmr_alloc_req(struct se_cmd *, void *, u8, gfp_t); -extern void core_tmr_release_req(struct se_tmr_req *); - -#endif /* TARGET_CORE_TMR_H */ diff --git a/include/target/target_core_tpg.h b/include/target/target_core_tpg.h deleted file mode 100644 index 80ae59fdada3..000000000000 --- a/include/target/target_core_tpg.h +++ /dev/null @@ -1,22 +0,0 @@ -#ifndef TARGET_CORE_TPG_H -#define TARGET_CORE_TPG_H - -extern struct se_node_acl *core_tpg_check_initiator_node_acl( - struct se_portal_group *, - unsigned char *); -extern void core_tpg_clear_object_luns(struct se_portal_group *); -extern struct se_node_acl *core_tpg_add_initiator_node_acl( - struct se_portal_group *, - struct se_node_acl *, - const char *, u32); -extern int core_tpg_del_initiator_node_acl(struct se_portal_group *, - struct se_node_acl *, int); -extern int core_tpg_set_initiator_node_queue_depth(struct se_portal_group *, - unsigned char *, u32, int); -extern int core_tpg_register(struct target_core_fabric_ops *, - struct se_wwn *, - struct se_portal_group *, void *, - int); -extern int core_tpg_deregister(struct se_portal_group *); - -#endif /* TARGET_CORE_TPG_H */ diff --git a/include/target/target_core_transport.h b/include/target/target_core_transport.h deleted file mode 100644 index 68fe1f2c081c..000000000000 --- a/include/target/target_core_transport.h +++ /dev/null @@ -1,256 +0,0 @@ -#ifndef TARGET_CORE_TRANSPORT_H -#define TARGET_CORE_TRANSPORT_H - -#define TARGET_CORE_VERSION TARGET_CORE_MOD_VERSION - -/* Attempts before moving from SHORT to LONG */ -#define PYX_TRANSPORT_WINDOW_CLOSED_THRESHOLD 3 -#define PYX_TRANSPORT_WINDOW_CLOSED_WAIT_SHORT 3 /* In milliseconds */ -#define PYX_TRANSPORT_WINDOW_CLOSED_WAIT_LONG 10 /* In milliseconds */ - -#define PYX_TRANSPORT_STATUS_INTERVAL 5 /* In seconds */ - -#define TRANSPORT_PLUGIN_PHBA_PDEV 1 -#define TRANSPORT_PLUGIN_VHBA_PDEV 2 -#define TRANSPORT_PLUGIN_VHBA_VDEV 3 - -/* - * struct se_subsystem_dev->su_dev_flags -*/ -#define SDF_FIRMWARE_VPD_UNIT_SERIAL 0x00000001 -#define SDF_EMULATED_VPD_UNIT_SERIAL 0x00000002 -#define SDF_USING_UDEV_PATH 0x00000004 -#define SDF_USING_ALIAS 0x00000008 - -/* - * struct se_device->dev_flags - */ -#define DF_READ_ONLY 0x00000001 -#define DF_SPC2_RESERVATIONS 0x00000002 -#define DF_SPC2_RESERVATIONS_WITH_ISID 0x00000004 - -/* struct se_dev_attrib sanity values */ -/* Default max_unmap_lba_count */ -#define DA_MAX_UNMAP_LBA_COUNT 0 -/* Default max_unmap_block_desc_count */ -#define DA_MAX_UNMAP_BLOCK_DESC_COUNT 0 -/* Default unmap_granularity */ -#define DA_UNMAP_GRANULARITY_DEFAULT 0 -/* Default unmap_granularity_alignment */ -#define DA_UNMAP_GRANULARITY_ALIGNMENT_DEFAULT 0 -/* Emulation for Direct Page Out */ -#define DA_EMULATE_DPO 0 -/* Emulation for Forced Unit Access WRITEs */ -#define DA_EMULATE_FUA_WRITE 1 -/* Emulation for Forced Unit Access READs */ -#define DA_EMULATE_FUA_READ 0 -/* Emulation for WriteCache and SYNCHRONIZE_CACHE */ -#define DA_EMULATE_WRITE_CACHE 0 -/* Emulation for UNIT ATTENTION Interlock Control */ -#define DA_EMULATE_UA_INTLLCK_CTRL 0 -/* Emulation for TASK_ABORTED status (TAS) by default */ -#define DA_EMULATE_TAS 1 -/* Emulation for Thin Provisioning UNMAP using block/blk-lib.c:blkdev_issue_discard() */ -#define DA_EMULATE_TPU 0 -/* - * Emulation for Thin Provisioning WRITE_SAME w/ UNMAP=1 bit using - * block/blk-lib.c:blkdev_issue_discard() - */ -#define DA_EMULATE_TPWS 0 -/* No Emulation for PSCSI by default */ -#define DA_EMULATE_RESERVATIONS 0 -/* No Emulation for PSCSI by default */ -#define DA_EMULATE_ALUA 0 -/* Enforce SCSI Initiator Port TransportID with 'ISID' for PR */ -#define DA_ENFORCE_PR_ISIDS 1 -#define DA_STATUS_MAX_SECTORS_MIN 16 -#define DA_STATUS_MAX_SECTORS_MAX 8192 -/* By default don't report non-rotating (solid state) medium */ -#define DA_IS_NONROT 0 -/* Queue Algorithm Modifier default for restricted reordering in control mode page */ -#define DA_EMULATE_REST_REORD 0 - -#define SE_MODE_PAGE_BUF 512 - -#define MOD_MAX_SECTORS(ms, bs) (ms % (PAGE_SIZE / bs)) - -struct se_subsystem_api; - -extern int transport_subsystem_register(struct se_subsystem_api *); -extern void transport_subsystem_release(struct se_subsystem_api *); -extern struct se_session *transport_init_session(void); -extern void __transport_register_session(struct se_portal_group *, - struct se_node_acl *, - struct se_session *, void *); -extern void transport_register_session(struct se_portal_group *, - struct se_node_acl *, - struct se_session *, void *); -extern void transport_free_session(struct se_session *); -extern void transport_deregister_session_configfs(struct se_session *); -extern void transport_deregister_session(struct se_session *); -extern void transport_complete_sync_cache(struct se_cmd *, int); -extern void transport_complete_task(struct se_task *, int); - -extern void transport_set_vpd_proto_id(struct t10_vpd *, unsigned char *); -extern int transport_set_vpd_assoc(struct t10_vpd *, unsigned char *); -extern int transport_set_vpd_ident_type(struct t10_vpd *, unsigned char *); -extern int transport_set_vpd_ident(struct t10_vpd *, unsigned char *); - -extern 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 *); -extern void transport_init_se_cmd(struct se_cmd *, - struct target_core_fabric_ops *, - struct se_session *, u32, int, int, - unsigned char *); -void *transport_kmap_first_data_page(struct se_cmd *cmd); -void transport_kunmap_first_data_page(struct se_cmd *cmd); -extern int transport_generic_allocate_tasks(struct se_cmd *, unsigned char *); -extern int transport_handle_cdb_direct(struct se_cmd *); -extern int transport_generic_handle_cdb_map(struct se_cmd *); -extern int transport_generic_handle_data(struct se_cmd *); -extern int transport_generic_handle_tmr(struct se_cmd *); -extern int transport_generic_map_mem_to_cmd(struct se_cmd *cmd, struct scatterlist *, u32, - struct scatterlist *, u32); -extern bool transport_wait_for_tasks(struct se_cmd *); -extern int transport_check_aborted_status(struct se_cmd *, int); -extern int transport_send_check_condition_and_sense(struct se_cmd *, u8, int); -extern void transport_generic_free_cmd(struct se_cmd *, int); -extern void target_get_sess_cmd(struct se_session *, struct se_cmd *); -extern int target_put_sess_cmd(struct se_session *, struct se_cmd *); -extern void target_splice_sess_cmd_list(struct se_session *); -extern void target_wait_for_sess_cmds(struct se_session *, int); -extern void transport_do_task_sg_chain(struct se_cmd *); -extern void transport_generic_process_write(struct se_cmd *); -extern int transport_generic_new_cmd(struct se_cmd *); -/* From target_core_alua.c */ -extern int core_alua_check_nonop_delay(struct se_cmd *); -/* From target_core_cdb.c */ -extern void target_get_task_cdb(struct se_task *task, unsigned char *cdb); - -/* - * Each se_transport_task_t can have N number of possible struct se_task's - * for the storage transport(s) to possibly execute. - * Used primarily for splitting up CDBs that exceed the physical storage - * HBA's maximum sector count per task. - */ -struct se_mem { - struct page *se_page; - u32 se_len; - u32 se_off; - struct list_head se_list; -} ____cacheline_aligned; - -/* - * Each type of disk transport supported MUST have a template defined - * within its .h file. - */ -struct se_subsystem_api { - /* - * The Name. :-) - */ - char name[16]; - /* - * Transport Type. - */ - u8 transport_type; - - unsigned int fua_write_emulated : 1; - unsigned int write_cache_emulated : 1; - - /* - * struct module for struct se_hba references - */ - struct module *owner; - /* - * Used for global se_subsystem_api list_head - */ - struct list_head sub_api_list; - /* - * attach_hba(): - */ - int (*attach_hba)(struct se_hba *, u32); - /* - * detach_hba(): - */ - void (*detach_hba)(struct se_hba *); - /* - * pmode_hba(): Used for TCM/pSCSI subsystem plugin HBA -> - * Linux/SCSI struct Scsi_Host passthrough - */ - int (*pmode_enable_hba)(struct se_hba *, unsigned long); - /* - * allocate_virtdevice(): - */ - void *(*allocate_virtdevice)(struct se_hba *, const char *); - /* - * create_virtdevice(): Only for Virtual HBAs - */ - struct se_device *(*create_virtdevice)(struct se_hba *, - struct se_subsystem_dev *, void *); - /* - * free_device(): - */ - void (*free_device)(void *); - - /* - * transport_complete(): - * - * Use transport_generic_complete() for majority of DAS transport - * drivers. Provided out of convenience. - */ - int (*transport_complete)(struct se_task *task); - struct se_task *(*alloc_task)(unsigned char *cdb); - /* - * do_task(): - */ - int (*do_task)(struct se_task *); - /* - * Used by virtual subsystem plugins IBLOCK and FILEIO to emulate - * UNMAP and WRITE_SAME_* w/ UNMAP=1 <-> Linux/Block Discard - */ - int (*do_discard)(struct se_device *, sector_t, u32); - /* - * Used by virtual subsystem plugins IBLOCK and FILEIO to emulate - * SYNCHRONIZE_CACHE_* <-> Linux/Block blkdev_issue_flush() - */ - void (*do_sync_cache)(struct se_task *); - /* - * free_task(): - */ - void (*free_task)(struct se_task *); - /* - * check_configfs_dev_params(): - */ - ssize_t (*check_configfs_dev_params)(struct se_hba *, struct se_subsystem_dev *); - /* - * set_configfs_dev_params(): - */ - ssize_t (*set_configfs_dev_params)(struct se_hba *, struct se_subsystem_dev *, - const char *, ssize_t); - /* - * show_configfs_dev_params(): - */ - ssize_t (*show_configfs_dev_params)(struct se_hba *, struct se_subsystem_dev *, - char *); - /* - * get_device_rev(): - */ - u32 (*get_device_rev)(struct se_device *); - /* - * get_device_type(): - */ - u32 (*get_device_type)(struct se_device *); - /* - * Get the sector_t from a subsystem backstore.. - */ - sector_t (*get_blocks)(struct se_device *); - /* - * get_sense_buffer(): - */ - unsigned char *(*get_sense_buffer)(struct se_task *); -} ____cacheline_aligned; - -#endif /* TARGET_CORE_TRANSPORT_H */ |
