diff options
Diffstat (limited to 'include/target')
| -rw-r--r-- | include/target/configfs_macros.h | 4 | ||||
| -rw-r--r-- | include/target/iscsi/iscsi_transport.h | 104 | ||||
| -rw-r--r-- | include/target/target_core_backend.h | 99 | ||||
| -rw-r--r-- | include/target/target_core_base.h | 909 | ||||
| -rw-r--r-- | include/target/target_core_configfs.h | 6 | ||||
| -rw-r--r-- | include/target/target_core_device.h | 61 | ||||
| -rw-r--r-- | include/target/target_core_fabric.h | 213 | ||||
| -rw-r--r-- | include/target/target_core_fabric_configfs.h | 11 | ||||
| -rw-r--r-- | include/target/target_core_fabric_lib.h | 28 | ||||
| -rw-r--r-- | include/target/target_core_fabric_ops.h | 100 | ||||
| -rw-r--r-- | include/target/target_core_tmr.h | 43 | ||||
| -rw-r--r-- | include/target/target_core_tpg.h | 35 | ||||
| -rw-r--r-- | include/target/target_core_transport.h | 353 |
13 files changed, 865 insertions, 1101 deletions
diff --git a/include/target/configfs_macros.h b/include/target/configfs_macros.h index 7fe74608b43..a0fc85bbe2d 100644 --- a/include/target/configfs_macros.h +++ b/include/target/configfs_macros.h @@ -30,8 +30,8 @@ * Added CONFIGFS_EATTR() macros from original configfs.h macros * Copright (C) 2008-2009 Nicholas A. Bellinger <nab@linux-iscsi.org> * - * Please read Documentation/filesystems/configfs.txt before using the - * configfs interface, ESPECIALLY the parts about reference counts and + * Please read Documentation/filesystems/configfs/configfs.txt before using + * the configfs interface, ESPECIALLY the parts about reference counts and * item destructors. */ diff --git a/include/target/iscsi/iscsi_transport.h b/include/target/iscsi/iscsi_transport.h new file mode 100644 index 00000000000..daef9daa500 --- /dev/null +++ b/include/target/iscsi/iscsi_transport.h @@ -0,0 +1,104 @@ +#include <linux/module.h> +#include <linux/list.h> +#include "../../../drivers/target/iscsi/iscsi_target_core.h" + +struct iscsit_transport { +#define ISCSIT_TRANSPORT_NAME 16 + char name[ISCSIT_TRANSPORT_NAME]; + int transport_type; + int priv_size; + struct module *owner; + struct list_head t_node; + int (*iscsit_setup_np)(struct iscsi_np *, struct __kernel_sockaddr_storage *); + int (*iscsit_accept_np)(struct iscsi_np *, struct iscsi_conn *); + void (*iscsit_free_np)(struct iscsi_np *); + void (*iscsit_wait_conn)(struct iscsi_conn *); + void (*iscsit_free_conn)(struct iscsi_conn *); + int (*iscsit_get_login_rx)(struct iscsi_conn *, struct iscsi_login *); + int (*iscsit_put_login_tx)(struct iscsi_conn *, struct iscsi_login *, u32); + int (*iscsit_immediate_queue)(struct iscsi_conn *, struct iscsi_cmd *, int); + int (*iscsit_response_queue)(struct iscsi_conn *, struct iscsi_cmd *, int); + int (*iscsit_get_dataout)(struct iscsi_conn *, struct iscsi_cmd *, bool); + int (*iscsit_queue_data_in)(struct iscsi_conn *, struct iscsi_cmd *); + int (*iscsit_queue_status)(struct iscsi_conn *, struct iscsi_cmd *); + void (*iscsit_aborted_task)(struct iscsi_conn *, struct iscsi_cmd *); + enum target_prot_op (*iscsit_get_sup_prot_ops)(struct iscsi_conn *); +}; + +static inline void *iscsit_priv_cmd(struct iscsi_cmd *cmd) +{ + return (void *)(cmd + 1); +} + +/* + * From iscsi_target_transport.c + */ + +extern int iscsit_register_transport(struct iscsit_transport *); +extern void iscsit_unregister_transport(struct iscsit_transport *); +extern struct iscsit_transport *iscsit_get_transport(int); +extern void iscsit_put_transport(struct iscsit_transport *); + +/* + * From iscsi_target.c + */ +extern int iscsit_setup_scsi_cmd(struct iscsi_conn *, struct iscsi_cmd *, + unsigned char *); +extern void iscsit_set_unsoliticed_dataout(struct iscsi_cmd *); +extern int iscsit_process_scsi_cmd(struct iscsi_conn *, struct iscsi_cmd *, + struct iscsi_scsi_req *); +extern int iscsit_check_dataout_hdr(struct iscsi_conn *, unsigned char *, + struct iscsi_cmd **); +extern int iscsit_check_dataout_payload(struct iscsi_cmd *, struct iscsi_data *, + bool); +extern int iscsit_setup_nop_out(struct iscsi_conn *, struct iscsi_cmd *, + struct iscsi_nopout *); +extern int iscsit_process_nop_out(struct iscsi_conn *, struct iscsi_cmd *, + struct iscsi_nopout *); +extern int iscsit_handle_logout_cmd(struct iscsi_conn *, struct iscsi_cmd *, + unsigned char *); +extern int iscsit_handle_task_mgt_cmd(struct iscsi_conn *, struct iscsi_cmd *, + unsigned char *); +extern int iscsit_setup_text_cmd(struct iscsi_conn *, struct iscsi_cmd *, + struct iscsi_text *); +extern int iscsit_process_text_cmd(struct iscsi_conn *, struct iscsi_cmd *, + struct iscsi_text *); +extern void iscsit_build_rsp_pdu(struct iscsi_cmd *, struct iscsi_conn *, + bool, struct iscsi_scsi_rsp *); +extern void iscsit_build_nopin_rsp(struct iscsi_cmd *, struct iscsi_conn *, + struct iscsi_nopin *, bool); +extern void iscsit_build_task_mgt_rsp(struct iscsi_cmd *, struct iscsi_conn *, + struct iscsi_tm_rsp *); +extern int iscsit_build_text_rsp(struct iscsi_cmd *, struct iscsi_conn *, + struct iscsi_text_rsp *, + enum iscsit_transport_type); +extern void iscsit_build_reject(struct iscsi_cmd *, struct iscsi_conn *, + struct iscsi_reject *); +extern int iscsit_build_logout_rsp(struct iscsi_cmd *, struct iscsi_conn *, + struct iscsi_logout_rsp *); +extern int iscsit_logout_post_handler(struct iscsi_cmd *, struct iscsi_conn *); +/* + * From iscsi_target_device.c + */ +extern void iscsit_increment_maxcmdsn(struct iscsi_cmd *, struct iscsi_session *); +/* + * From iscsi_target_erl0.c + */ +extern void iscsit_cause_connection_reinstatement(struct iscsi_conn *, int); +/* + * From iscsi_target_erl1.c + */ +extern void iscsit_stop_dataout_timer(struct iscsi_cmd *); + +/* + * From iscsi_target_tmr.c + */ +extern int iscsit_tmr_post_handler(struct iscsi_cmd *, struct iscsi_conn *); + +/* + * From iscsi_target_util.c + */ +extern struct iscsi_cmd *iscsit_allocate_cmd(struct iscsi_conn *, int); +extern int iscsit_sequence_cmd(struct iscsi_conn *, struct iscsi_cmd *, + unsigned char *, __be32); +extern void iscsit_release_cmd(struct iscsi_cmd *); diff --git a/include/target/target_core_backend.h b/include/target/target_core_backend.h new file mode 100644 index 00000000000..9adc1bca117 --- /dev/null +++ b/include/target/target_core_backend.h @@ -0,0 +1,99 @@ +#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]; + char inquiry_prod[16]; + char inquiry_rev[4]; + struct module *owner; + + u8 transport_type; + + int (*attach_hba)(struct se_hba *, u32); + void (*detach_hba)(struct se_hba *); + int (*pmode_enable_hba)(struct se_hba *, unsigned long); + + struct se_device *(*alloc_device)(struct se_hba *, const char *); + int (*configure_device)(struct se_device *); + void (*free_device)(struct se_device *device); + + ssize_t (*set_configfs_dev_params)(struct se_device *, + const char *, ssize_t); + ssize_t (*show_configfs_dev_params)(struct se_device *, char *); + + void (*transport_complete)(struct se_cmd *cmd, + struct scatterlist *, + unsigned char *); + + sense_reason_t (*parse_cdb)(struct se_cmd *cmd); + u32 (*get_device_type)(struct se_device *); + sector_t (*get_blocks)(struct se_device *); + sector_t (*get_alignment_offset_lbas)(struct se_device *); + /* lbppbe = logical blocks per physical block exponent. see SBC-3 */ + unsigned int (*get_lbppbe)(struct se_device *); + unsigned int (*get_io_min)(struct se_device *); + unsigned int (*get_io_opt)(struct se_device *); + unsigned char *(*get_sense_buffer)(struct se_cmd *); + bool (*get_write_cache)(struct se_device *); + int (*init_prot)(struct se_device *); + int (*format_prot)(struct se_device *); + void (*free_prot)(struct se_device *); +}; + +struct sbc_ops { + sense_reason_t (*execute_rw)(struct se_cmd *cmd, struct scatterlist *, + u32, enum dma_data_direction); + sense_reason_t (*execute_sync_cache)(struct se_cmd *cmd); + sense_reason_t (*execute_write_same)(struct se_cmd *cmd); + sense_reason_t (*execute_write_same_unmap)(struct se_cmd *cmd); + sense_reason_t (*execute_unmap)(struct se_cmd *cmd); +}; + +int transport_subsystem_register(struct se_subsystem_api *); +void transport_subsystem_release(struct se_subsystem_api *); + +void target_complete_cmd(struct se_cmd *, u8); +void target_complete_cmd_with_length(struct se_cmd *, u8, int); + +sense_reason_t spc_parse_cdb(struct se_cmd *cmd, unsigned int *size); +sense_reason_t spc_emulate_report_luns(struct se_cmd *cmd); +sense_reason_t spc_emulate_inquiry_std(struct se_cmd *, unsigned char *); +sense_reason_t spc_emulate_evpd_83(struct se_cmd *, unsigned char *); + +sense_reason_t sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops); +u32 sbc_get_device_rev(struct se_device *dev); +u32 sbc_get_device_type(struct se_device *dev); +sector_t sbc_get_write_same_sectors(struct se_cmd *cmd); +sense_reason_t sbc_execute_unmap(struct se_cmd *cmd, + sense_reason_t (*do_unmap_fn)(struct se_cmd *cmd, void *priv, + sector_t lba, sector_t nolb), + void *priv); +void sbc_dif_generate(struct se_cmd *); +sense_reason_t sbc_dif_verify_write(struct se_cmd *, sector_t, unsigned int, + unsigned int, struct scatterlist *, int); +sense_reason_t sbc_dif_verify_read(struct se_cmd *, sector_t, unsigned int, + unsigned int, struct scatterlist *, int); +sense_reason_t sbc_dif_read_strip(struct se_cmd *); + +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_data_sg(struct se_cmd *); +void transport_kunmap_data_sg(struct se_cmd *); +/* core helpers also used by xcopy during internal command setup */ +int target_alloc_sgl(struct scatterlist **, unsigned int *, u32, bool); +sense_reason_t transport_generic_map_mem_to_cmd(struct se_cmd *, + struct scatterlist *, u32, struct scatterlist *, u32); + +void array_free(void *array, int n); + +#endif /* TARGET_CORE_BACKEND_H */ diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h index 0828b6c8610..9ec9864ecf3 100644 --- a/include/target/target_core_base.h +++ b/include/target/target_core_base.h @@ -5,16 +5,16 @@ #include <linux/configfs.h> #include <linux/dma-mapping.h> #include <linux/blkdev.h> +#include <linux/percpu_ida.h> #include <scsi/scsi_cmnd.h> #include <net/sock.h> #include <net/tcp.h> -#define TARGET_CORE_MOD_VERSION "v4.0.0-rc6" -#define SHUTDOWN_SIGS (sigmask(SIGKILL)|sigmask(SIGINT)|sigmask(SIGABRT)) +#define TARGET_CORE_MOD_VERSION "v4.1.0" +#define TARGET_CORE_VERSION TARGET_CORE_MOD_VERSION -/* Used by transport_generic_allocate_iovecs() */ -#define TRANSPORT_IOV_DATA_BUFFER 5 /* Maximum Number of LUNs per Target Portal Group */ +/* Don't raise above 511 or REPORT_LUNS needs to handle >1 page */ #define TRANSPORT_MAX_LUNS_PER_TPG 256 /* * By default we use 32-byte CDBs in TCM Core and subsystem plugin code. @@ -22,7 +22,7 @@ * Note that both include/scsi/scsi_cmnd.h:MAX_COMMAND_SIZE and * include/linux/blkdev.h:BLOCK_MAX_CDB as of v2.6.36-rc4 still use * 16-byte CDBs by default and require an extra allocation for - * 32-byte CDBs to becasue of legacy issues. + * 32-byte CDBs to because of legacy issues. * * Within TCM Core there are no such legacy limitiations, so we go ahead * use 32-byte CDBs by default and use include/scsi/scsi.h:scsi_command_size() @@ -36,6 +36,10 @@ #define TRANSPORT_SENSE_BUFFER SCSI_SENSE_BUFFERSIZE /* Used by transport_send_check_condition_and_sense() */ #define SPC_SENSE_KEY_OFFSET 2 +#define SPC_ADD_SENSE_LEN_OFFSET 7 +#define SPC_DESC_TYPE_OFFSET 8 +#define SPC_ADDITIONAL_DESC_LEN_OFFSET 9 +#define SPC_VALIDITY_OFFSET 10 #define SPC_ASC_KEY_OFFSET 12 #define SPC_ASCQ_KEY_OFFSET 13 #define TRANSPORT_IQN_LEN 224 @@ -44,7 +48,7 @@ /* Used by core_alua_store_tg_pt_gp_info() and target_core_alua_tg_pt_gp_show_attr_members() */ #define TG_PT_GROUP_NAME_BUF 256 /* Used to parse VPD into struct t10_vpd */ -#define VPD_TMP_BUF_SIZE 128 +#define VPD_TMP_BUF_SIZE 254 /* Used by transport_generic_cmd_sequencer() */ #define READ_BLOCK_LEN 6 #define READ_CAP_LEN 8 @@ -55,6 +59,66 @@ /* 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_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 +/* Default max_write_same_len, disabled by default */ +#define DA_MAX_WRITE_SAME_LEN 0 +/* Default max transfer length */ +#define DA_FABRIC_MAX_SECTORS 8192 +/* Use a model alias based on the configfs backend device name */ +#define DA_EMULATE_MODEL_ALIAS 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 +/* Emulation for CompareAndWrite (AtomicTestandSet) by default */ +#define DA_EMULATE_CAW 1 +/* Emulation for 3rd Party Copy (ExtendedCopy) by default */ +#define DA_EMULATE_3PC 1 +/* 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_INQUIRY_BUF 1024 +#define SE_MODE_PAGE_BUF 512 +#define SE_SENSE_BUF 96 + /* struct se_hba->hba_flags */ enum hba_flags_table { HBA_FLAGS_INTERNAL_USE = 0x01, @@ -73,31 +137,16 @@ enum transport_tpg_type_table { TRANSPORT_TPG_TYPE_DISCOVERY = 1, }; -/* Used for generate timer flags */ -enum timer_flags_table { - TF_RUNNING = 0x01, - TF_STOP = 0x02, -}; - /* Special transport agnostic struct se_cmd->t_states */ enum transport_state_table { TRANSPORT_NO_STATE = 0, TRANSPORT_NEW_CMD = 1, - TRANSPORT_DEFERRED_CMD = 2, TRANSPORT_WRITE_PENDING = 3, - TRANSPORT_PROCESS_WRITE = 4, TRANSPORT_PROCESSING = 5, - TRANSPORT_COMPLETE_OK = 6, - TRANSPORT_COMPLETE_FAILURE = 7, - TRANSPORT_COMPLETE_TIMEOUT = 8, - TRANSPORT_PROCESS_TMR = 9, - TRANSPORT_TMR_COMPLETE = 10, + TRANSPORT_COMPLETE = 6, TRANSPORT_ISTATE_PROCESSING = 11, - TRANSPORT_ISTATE_PROCESSED = 12, - TRANSPORT_KILL = 13, - TRANSPORT_REMOVE = 14, - TRANSPORT_FREE = 15, - TRANSPORT_NEW_CMD_MAP = 16, + TRANSPORT_COMPLETE_QF_WP = 18, + TRANSPORT_COMPLETE_QF_OK = 19, }; /* Used for struct se_cmd->se_cmd_flags */ @@ -105,29 +154,21 @@ enum se_cmd_flags_table { SCF_SUPPORTED_SAM_OPCODE = 0x00000001, SCF_TRANSPORT_TASK_SENSE = 0x00000002, SCF_EMULATED_TASK_SENSE = 0x00000004, - SCF_SCSI_DATA_SG_IO_CDB = 0x00000008, - SCF_SCSI_CONTROL_SG_IO_CDB = 0x00000010, - SCF_SCSI_CONTROL_NONSG_IO_CDB = 0x00000020, - SCF_SCSI_NON_DATA_CDB = 0x00000040, - SCF_SCSI_CDB_EXCEPTION = 0x00000080, - SCF_SCSI_RESERVATION_CONFLICT = 0x00000100, - SCF_CMD_PASSTHROUGH_NOALLOC = 0x00000200, - SCF_SE_CMD_FAILED = 0x00000400, - SCF_SE_LUN_CMD = 0x00000800, - SCF_SE_ALLOW_EOO = 0x00001000, - SCF_SE_DISABLE_ONLINE_CHECK = 0x00002000, - SCF_SENT_CHECK_CONDITION = 0x00004000, - SCF_OVERFLOW_BIT = 0x00008000, - SCF_UNDERFLOW_BIT = 0x00010000, - SCF_SENT_DELAYED_TAS = 0x00020000, - SCF_ALUA_NON_OPTIMIZED = 0x00040000, - SCF_DELAYED_CMD_FROM_SAM_ATTR = 0x00080000, - SCF_PASSTHROUGH_SG_TO_MEM = 0x00100000, - SCF_PASSTHROUGH_CONTIG_TO_SG = 0x00200000, - SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC = 0x00400000, - SCF_EMULATE_SYNC_CACHE = 0x00800000, - SCF_EMULATE_CDB_ASYNC = 0x01000000, - SCF_EMULATE_SYNC_UNMAP = 0x02000000 + SCF_SCSI_DATA_CDB = 0x00000008, + SCF_SCSI_TMR_CDB = 0x00000010, + SCF_FUA = 0x00000080, + SCF_SE_LUN_CMD = 0x00000100, + SCF_BIDI = 0x00000400, + SCF_SENT_CHECK_CONDITION = 0x00000800, + SCF_OVERFLOW_BIT = 0x00001000, + SCF_UNDERFLOW_BIT = 0x00002000, + SCF_SEND_DELAYED_TAS = 0x00004000, + SCF_ALUA_NON_OPTIMIZED = 0x00008000, + SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC = 0x00020000, + SCF_ACK_KREF = 0x00040000, + SCF_COMPARE_AND_WRITE = 0x00080000, + SCF_COMPARE_AND_WRITE_POST = 0x00100000, + SCF_CMD_XCOPY_PASSTHROUGH = 0x00200000, }; /* struct se_dev_entry->lun_flags and struct se_lun->lun_access */ @@ -138,61 +179,67 @@ enum transport_lunflags_table { TRANSPORT_LUNFLAGS_READ_WRITE = 0x04, }; -/* struct se_device->dev_status */ -enum transport_device_status_table { - TRANSPORT_DEVICE_ACTIVATED = 0x01, - TRANSPORT_DEVICE_DEACTIVATED = 0x02, - TRANSPORT_DEVICE_QUEUE_FULL = 0x04, - TRANSPORT_DEVICE_SHUTDOWN = 0x08, - TRANSPORT_DEVICE_OFFLINE_ACTIVATED = 0x10, - TRANSPORT_DEVICE_OFFLINE_DEACTIVATED = 0x20, -}; - /* - * Used by transport_send_check_condition_and_sense() and se_cmd->scsi_sense_reason + * Used by transport_send_check_condition_and_sense() * to signal which ASC/ASCQ sense payload should be built. */ +typedef unsigned __bitwise__ sense_reason_t; + enum tcm_sense_reason_table { - TCM_NON_EXISTENT_LUN = 0x01, - TCM_UNSUPPORTED_SCSI_OPCODE = 0x02, - TCM_INCORRECT_AMOUNT_OF_DATA = 0x03, - TCM_UNEXPECTED_UNSOLICITED_DATA = 0x04, - TCM_SERVICE_CRC_ERROR = 0x05, - TCM_SNACK_REJECTED = 0x06, - TCM_SECTOR_COUNT_TOO_MANY = 0x07, - TCM_INVALID_CDB_FIELD = 0x08, - TCM_INVALID_PARAMETER_LIST = 0x09, - TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE = 0x0a, - TCM_UNKNOWN_MODE_PAGE = 0x0b, - TCM_WRITE_PROTECTED = 0x0c, - TCM_CHECK_CONDITION_ABORT_CMD = 0x0d, - TCM_CHECK_CONDITION_UNIT_ATTENTION = 0x0e, - TCM_CHECK_CONDITION_NOT_READY = 0x0f, -}; - -struct se_obj { - atomic_t obj_access_count; -} ____cacheline_aligned; +#define R(x) (__force sense_reason_t )(x) + TCM_NO_SENSE = R(0x00), + TCM_NON_EXISTENT_LUN = R(0x01), + TCM_UNSUPPORTED_SCSI_OPCODE = R(0x02), + TCM_INCORRECT_AMOUNT_OF_DATA = R(0x03), + TCM_UNEXPECTED_UNSOLICITED_DATA = R(0x04), + TCM_SERVICE_CRC_ERROR = R(0x05), + TCM_SNACK_REJECTED = R(0x06), + TCM_SECTOR_COUNT_TOO_MANY = R(0x07), + TCM_INVALID_CDB_FIELD = R(0x08), + TCM_INVALID_PARAMETER_LIST = R(0x09), + TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE = R(0x0a), + TCM_UNKNOWN_MODE_PAGE = R(0x0b), + TCM_WRITE_PROTECTED = R(0x0c), + TCM_CHECK_CONDITION_ABORT_CMD = R(0x0d), + TCM_CHECK_CONDITION_UNIT_ATTENTION = R(0x0e), + TCM_CHECK_CONDITION_NOT_READY = R(0x0f), + TCM_RESERVATION_CONFLICT = R(0x10), + TCM_ADDRESS_OUT_OF_RANGE = R(0x11), + TCM_OUT_OF_RESOURCES = R(0x12), + TCM_PARAMETER_LIST_LENGTH_ERROR = R(0x13), + TCM_MISCOMPARE_VERIFY = R(0x14), + TCM_LOGICAL_BLOCK_GUARD_CHECK_FAILED = R(0x15), + TCM_LOGICAL_BLOCK_APP_TAG_CHECK_FAILED = R(0x16), + TCM_LOGICAL_BLOCK_REF_TAG_CHECK_FAILED = R(0x17), +#undef R +}; -/* - * Used by TCM Core internally to signal if ALUA emulation is enabled or - * disabled, or running in with TCM/pSCSI passthrough mode - */ -typedef enum { - SPC_ALUA_PASSTHROUGH, - SPC2_ALUA_DISABLED, - SPC3_ALUA_EMULATED -} t10_alua_index_t; +enum target_sc_flags_table { + TARGET_SCF_BIDI_OP = 0x01, + TARGET_SCF_ACK_KREF = 0x02, + TARGET_SCF_UNKNOWN_SIZE = 0x04, +}; -/* - * Used by TCM Core internally to signal if SAM Task Attribute emulation - * is enabled or disabled, or running in with TCM/pSCSI passthrough mode - */ -typedef enum { - SAM_TASK_ATTR_PASSTHROUGH, - SAM_TASK_ATTR_UNTAGGED, - SAM_TASK_ATTR_EMULATED -} t10_task_attr_index_t; +/* 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, +}; + +/* fabric independent task management response values */ +enum tcm_tmrsp_table { + TMR_FUNCTION_FAILED = 0, + TMR_FUNCTION_COMPLETE = 1, + TMR_TASK_DOES_NOT_EXIST = 2, + TMR_LUN_DOES_NOT_EXIST = 3, + TMR_TASK_MGMT_FUNCTION_NOT_SUPPORTED = 4, + TMR_FUNCTION_REJECTED = 5, +}; /* * Used for target SCSI statistics @@ -204,80 +251,95 @@ typedef enum { SCSI_INDEX_TYPE_MAX } scsi_index_t; -struct scsi_index_table { - spinlock_t lock; - u32 scsi_mib_index[SCSI_INDEX_TYPE_MAX]; -} ____cacheline_aligned; - struct se_cmd; +struct t10_alua_lba_map_member { + struct list_head lba_map_mem_list; + int lba_map_mem_alua_state; + int lba_map_mem_alua_pg_id; +}; + +struct t10_alua_lba_map { + u64 lba_map_first_lba; + u64 lba_map_last_lba; + struct list_head lba_map_list; + struct list_head lba_map_mem_list; +}; + struct t10_alua { - t10_alua_index_t alua_type; /* ALUA Target Port Group ID */ u16 alua_tg_pt_gps_counter; u32 alua_tg_pt_gps_count; + /* Referrals support */ + spinlock_t lba_map_lock; + u32 lba_map_segment_size; + u32 lba_map_segment_multiplier; + struct list_head lba_map_list; spinlock_t tg_pt_gps_lock; - struct se_subsystem_dev *t10_sub_dev; + struct se_device *t10_dev; /* Used for default ALUA Target Port Group */ struct t10_alua_tg_pt_gp *default_tg_pt_gp; /* Used for default ALUA Target Port Group ConfigFS group */ struct config_group alua_tg_pt_gps_group; - int (*alua_state_check)(struct se_cmd *, unsigned char *, u8 *); struct list_head tg_pt_gps_list; -} ____cacheline_aligned; +}; struct t10_alua_lu_gp { u16 lu_gp_id; int lu_gp_valid_id; u32 lu_gp_members; - atomic_t lu_gp_shutdown; atomic_t lu_gp_ref_cnt; spinlock_t lu_gp_lock; struct config_group lu_gp_group; - struct list_head lu_gp_list; + struct list_head lu_gp_node; struct list_head lu_gp_mem_list; -} ____cacheline_aligned; +}; struct t10_alua_lu_gp_member { - int lu_gp_assoc:1; + bool lu_gp_assoc; atomic_t lu_gp_mem_ref_cnt; spinlock_t lu_gp_mem_lock; struct t10_alua_lu_gp *lu_gp; struct se_device *lu_gp_mem_dev; struct list_head lu_gp_mem_list; -} ____cacheline_aligned; +}; struct t10_alua_tg_pt_gp { u16 tg_pt_gp_id; int tg_pt_gp_valid_id; + int tg_pt_gp_alua_supported_states; + int tg_pt_gp_alua_pending_state; + int tg_pt_gp_alua_previous_state; int tg_pt_gp_alua_access_status; int tg_pt_gp_alua_access_type; int tg_pt_gp_nonop_delay_msecs; int tg_pt_gp_trans_delay_msecs; + int tg_pt_gp_implicit_trans_secs; int tg_pt_gp_pref; int tg_pt_gp_write_metadata; - /* Used by struct t10_alua_tg_pt_gp->tg_pt_gp_md_buf_len */ -#define ALUA_MD_BUF_LEN 1024 - u32 tg_pt_gp_md_buf_len; u32 tg_pt_gp_members; atomic_t tg_pt_gp_alua_access_state; atomic_t tg_pt_gp_ref_cnt; spinlock_t tg_pt_gp_lock; struct mutex tg_pt_gp_md_mutex; - struct se_subsystem_dev *tg_pt_gp_su_dev; + struct se_device *tg_pt_gp_dev; struct config_group tg_pt_gp_group; struct list_head tg_pt_gp_list; struct list_head tg_pt_gp_mem_list; -} ____cacheline_aligned; + struct se_port *tg_pt_gp_alua_port; + struct se_node_acl *tg_pt_gp_alua_nacl; + struct delayed_work tg_pt_gp_transition_work; + struct completion *tg_pt_gp_transition_complete; +}; struct t10_alua_tg_pt_gp_member { - int tg_pt_gp_assoc:1; + bool tg_pt_gp_assoc; atomic_t tg_pt_gp_mem_ref_cnt; spinlock_t tg_pt_gp_mem_lock; struct t10_alua_tg_pt_gp *tg_pt_gp; struct se_port *tg_pt; struct list_head tg_pt_gp_mem_list; -} ____cacheline_aligned; +}; struct t10_vpd { unsigned char device_identifier[INQUIRY_VPD_DEVICE_IDENTIFIER_LEN]; @@ -287,30 +349,18 @@ struct t10_vpd { u32 association; u32 device_identifier_type; struct list_head vpd_list; -} ____cacheline_aligned; +}; struct t10_wwn { - unsigned char vendor[8]; - unsigned char model[16]; - unsigned char revision[4]; - unsigned char unit_serial[INQUIRY_VPD_SERIAL_LEN]; + char vendor[8]; + char model[16]; + char revision[4]; + char unit_serial[INQUIRY_VPD_SERIAL_LEN]; spinlock_t t10_vpd_lock; - struct se_subsystem_dev *t10_sub_dev; + struct se_device *t10_dev; struct config_group t10_wwn_group; struct list_head t10_vpd_list; -} ____cacheline_aligned; - - -/* - * Used by TCM Core internally to signal if >= SPC-3 peristent reservations - * emulation is enabled or disabled, or running in with TCM/pSCSI passthrough - * mode - */ -typedef enum { - SPC_PASSTHROUGH, - SPC2_RESERVATIONS, - SPC3_PERSISTENT_RESERVATIONS -} t10_reservations_index_t; +}; struct t10_pr_registration { /* Used for fabrics that contain WWN+ISID */ @@ -324,8 +374,6 @@ struct t10_pr_registration { /* Used during APTPL metadata reading */ #define PR_APTPL_MAX_TPORT_LEN 256 unsigned char pr_tport[PR_APTPL_MAX_TPORT_LEN]; - /* For writing out live meta data */ - unsigned char *pr_aptpl_buf; u16 pr_aptpl_rpti; u16 pr_reg_tpgt; /* Reservation effects all target ports */ @@ -336,7 +384,7 @@ struct t10_pr_registration { int pr_res_type; int pr_res_scope; /* Used for fabric initiator WWPNs using a ISID */ - int isid_present_at_reg:1; + bool isid_present_at_reg; u32 pr_res_mapped_lun; u32 pr_aptpl_target_lun; u32 pr_res_generation; @@ -351,31 +399,16 @@ struct t10_pr_registration { struct list_head pr_reg_aptpl_list; struct list_head pr_reg_atp_list; struct list_head pr_reg_atp_mem_list; -} ____cacheline_aligned; - -/* - * This set of function pointer ops is set based upon SPC3_PERSISTENT_RESERVATIONS, - * SPC2_RESERVATIONS or SPC_PASSTHROUGH in drivers/target/target_core_pr.c: - * core_setup_reservations() - */ -struct t10_reservation_ops { - int (*t10_reservation_check)(struct se_cmd *, u32 *); - int (*t10_seq_non_holder)(struct se_cmd *, unsigned char *, u32); - int (*t10_pr_register)(struct se_cmd *); - int (*t10_pr_clear)(struct se_cmd *); }; -struct t10_reservation_template { +struct t10_reservation { /* Reservation effects all target ports */ int pr_all_tg_pt; /* Activate Persistence across Target Power Loss enabled * for SCSI device */ int pr_aptpl_active; - /* Used by struct t10_reservation_template->pr_aptpl_buf_len */ #define PR_APTPL_BUF_LEN 8192 - u32 pr_aptpl_buf_len; u32 pr_generation; - t10_reservations_index_t res_type; spinlock_t registration_lock; spinlock_t aptpl_reg_lock; /* @@ -391,118 +424,61 @@ struct t10_reservation_template { struct se_node_acl *pr_res_holder; struct list_head registration_list; struct list_head aptpl_reg_list; - struct t10_reservation_ops pr_ops; -} ____cacheline_aligned; - -struct se_queue_req { - int state; - void *cmd; - struct list_head qr_list; -} ____cacheline_aligned; - -struct se_queue_obj { - atomic_t queue_cnt; - spinlock_t cmd_queue_lock; - struct list_head qobj_list; - wait_queue_head_t thread_wq; -} ____cacheline_aligned; +}; -/* - * Used one per struct se_cmd to hold all extra struct se_task - * metadata. This structure is setup and allocated in - * drivers/target/target_core_transport.c:__transport_alloc_se_cmd() - */ -struct se_transport_task { - unsigned char *t_task_cdb; - unsigned char __t_task_cdb[TCM_MAX_COMMAND_SIZE]; - unsigned long long t_task_lba; - int t_tasks_failed; - int t_tasks_fua; - int t_tasks_bidi:1; - u32 t_task_cdbs; - u32 t_tasks_check; - u32 t_tasks_no; - u32 t_tasks_sectors; - u32 t_tasks_se_num; - u32 t_tasks_se_bidi_num; - u32 t_tasks_sg_chained_no; - atomic_t t_fe_count; - atomic_t t_se_count; - atomic_t t_task_cdbs_left; - atomic_t t_task_cdbs_ex_left; - atomic_t t_task_cdbs_timeout_left; - atomic_t t_task_cdbs_sent; - atomic_t t_transport_aborted; - atomic_t t_transport_active; - atomic_t t_transport_complete; - atomic_t t_transport_queue_active; - atomic_t t_transport_sent; - atomic_t t_transport_stop; - atomic_t t_transport_timeout; - atomic_t transport_dev_active; - atomic_t transport_lun_active; - atomic_t transport_lun_fe_stop; - atomic_t transport_lun_stop; - spinlock_t t_state_lock; - struct completion t_transport_stop_comp; - struct completion transport_lun_fe_stop_comp; - struct completion transport_lun_stop_comp; - struct scatterlist *t_tasks_sg_chained; - struct scatterlist t_tasks_sg_bounce; - void *t_task_buf; - /* - * Used for pre-registered fabric SGL passthrough WRITE and READ - * with the special SCF_PASSTHROUGH_CONTIG_TO_SG case for TCM_Loop - * and other HW target mode fabric modules. - */ - struct scatterlist *t_task_pt_sgl; - struct list_head *t_mem_list; - /* Used for BIDI READ */ - struct list_head *t_mem_bidi_list; - struct list_head t_task_list; -} ____cacheline_aligned; - -struct se_task { - unsigned char task_sense; - struct scatterlist *task_sg; - struct scatterlist *task_sg_bidi; - u8 task_scsi_status; - u8 task_flags; - int task_error_status; - int task_state_flags; - int task_padded_sg:1; - unsigned long long task_lba; - u32 task_no; - u32 task_sectors; - u32 task_size; - u32 task_sg_num; - u32 task_sg_offset; - enum dma_data_direction task_data_direction; - struct se_cmd *task_se_cmd; - struct se_device *se_dev; - struct completion task_stop_comp; - atomic_t task_active; - atomic_t task_execute_queue; - atomic_t task_timeout; - atomic_t task_sent; - atomic_t task_stop; - atomic_t task_state_active; - struct timer_list task_timer; - struct se_device *se_obj_ptr; - struct list_head t_list; - struct list_head t_execute_list; - struct list_head t_state_list; -} ____cacheline_aligned; - -#define TASK_CMD(task) ((struct se_cmd *)task->task_se_cmd) -#define TASK_DEV(task) ((struct se_device *)task->se_dev) +struct se_tmr_req { + /* Task Management function to be performed */ + u8 function; + /* Task Management response to send */ + u8 response; + int call_transport; + /* Reference to ITT that Task Mgmt should be performed */ + u32 ref_task_tag; + void *fabric_tmr_ptr; + struct se_cmd *task_cmd; + struct se_device *tmr_dev; + struct se_lun *tmr_lun; + struct list_head tmr_list; +}; + +enum target_prot_op { + TARGET_PROT_NORMAL = 0, + TARGET_PROT_DIN_INSERT = (1 << 0), + TARGET_PROT_DOUT_INSERT = (1 << 1), + TARGET_PROT_DIN_STRIP = (1 << 2), + TARGET_PROT_DOUT_STRIP = (1 << 3), + TARGET_PROT_DIN_PASS = (1 << 4), + TARGET_PROT_DOUT_PASS = (1 << 5), +}; + +#define TARGET_PROT_ALL TARGET_PROT_DIN_INSERT | TARGET_PROT_DOUT_INSERT | \ + TARGET_PROT_DIN_STRIP | TARGET_PROT_DOUT_STRIP | \ + TARGET_PROT_DIN_PASS | TARGET_PROT_DOUT_PASS + +enum target_prot_type { + TARGET_DIF_TYPE0_PROT, + TARGET_DIF_TYPE1_PROT, + TARGET_DIF_TYPE2_PROT, + TARGET_DIF_TYPE3_PROT, +}; + +enum target_core_dif_check { + TARGET_DIF_CHECK_GUARD = 0x1 << 0, + TARGET_DIF_CHECK_APPTAG = 0x1 << 1, + TARGET_DIF_CHECK_REFTAG = 0x1 << 2, +}; + +struct se_dif_v1_tuple { + __be16 guard_tag; + __be16 app_tag; + __be32 ref_tag; +}; struct se_cmd { /* SAM response code being sent to initiator */ u8 scsi_status; u8 scsi_asc; u8 scsi_ascq; - u8 scsi_sense_reason; u16 scsi_sense_length; /* Delay for ALUA Active/NonOptimized state access in milliseconds */ int alua_nonop_delay; @@ -510,89 +486,110 @@ struct se_cmd { enum dma_data_direction data_direction; /* For SAM Task Attribute */ int sam_task_attr; + /* Used for se_sess->sess_tag_pool */ + unsigned int map_tag; /* Transport protocol dependent state, see transport_state_table */ enum transport_state_table t_state; - /* Transport protocol dependent state for out of order CmdSNs */ - int deferred_t_state; - /* Transport specific error status */ - int transport_error_status; + unsigned cmd_wait_set:1; + unsigned unknown_data_length:1; /* See se_cmd_flags_table */ u32 se_cmd_flags; u32 se_ordered_id; /* Total size in bytes associated with command */ u32 data_length; - /* SCSI Presented Data Transfer Length */ - u32 cmd_spdtl; u32 residual_count; u32 orig_fe_lun; /* Persistent Reservation key */ u64 pr_res_key; - atomic_t transport_sent; /* Used for sense data */ void *sense_buffer; - struct list_head se_delayed_list; - struct list_head se_ordered_list; - struct list_head se_lun_list; + struct list_head se_delayed_node; + struct list_head se_qf_node; struct se_device *se_dev; struct se_dev_entry *se_deve; - struct se_device *se_obj_ptr; - struct se_device *se_orig_obj_ptr; struct se_lun *se_lun; /* Only used for internal passthrough and legacy TCM fabric modules */ struct se_session *se_sess; struct se_tmr_req *se_tmr_req; - /* t_task is setup to t_task_backstore in transport_init_se_cmd() */ - struct se_transport_task *t_task; - struct se_transport_task t_task_backstore; + struct list_head se_cmd_list; + struct completion cmd_wait_comp; + struct kref cmd_kref; struct target_core_fabric_ops *se_tfo; - int (*transport_emulate_cdb)(struct se_cmd *); - void (*transport_split_cdb)(unsigned long long, u32 *, unsigned char *); - void (*transport_wait_for_tasks)(struct se_cmd *, int, int); - void (*transport_complete_callback)(struct se_cmd *); -} ____cacheline_aligned; + sense_reason_t (*execute_cmd)(struct se_cmd *); + sense_reason_t (*execute_rw)(struct se_cmd *, struct scatterlist *, + u32, enum dma_data_direction); + sense_reason_t (*transport_complete_callback)(struct se_cmd *); -#define T_TASK(cmd) ((struct se_transport_task *)(cmd->t_task)) -#define CMD_TFO(cmd) ((struct target_core_fabric_ops *)cmd->se_tfo) + unsigned char *t_task_cdb; + unsigned char __t_task_cdb[TCM_MAX_COMMAND_SIZE]; + unsigned long long t_task_lba; + unsigned int t_task_nolb; + unsigned int transport_state; +#define CMD_T_ABORTED (1 << 0) +#define CMD_T_ACTIVE (1 << 1) +#define CMD_T_COMPLETE (1 << 2) +#define CMD_T_SENT (1 << 4) +#define CMD_T_STOP (1 << 5) +#define CMD_T_DEV_ACTIVE (1 << 7) +#define CMD_T_REQUEST_STOP (1 << 8) +#define CMD_T_BUSY (1 << 9) + spinlock_t t_state_lock; + struct completion t_transport_stop_comp; -struct se_tmr_req { - /* Task Management function to be preformed */ - u8 function; - /* Task Management response to send */ - u8 response; - int call_transport; - /* Reference to ITT that Task Mgmt should be preformed */ - u32 ref_task_tag; - /* 64-bit encoded SAM LUN from $FABRIC_MOD TMR header */ - u64 ref_task_lun; - void *fabric_tmr_ptr; - struct se_cmd *task_cmd; - struct se_cmd *ref_cmd; - struct se_device *tmr_dev; - struct se_lun *tmr_lun; - struct list_head tmr_list; -} ____cacheline_aligned; + struct work_struct work; + + struct scatterlist *t_data_sg; + struct scatterlist *t_data_sg_orig; + unsigned int t_data_nents; + unsigned int t_data_nents_orig; + void *t_data_vmap; + struct scatterlist *t_bidi_data_sg; + unsigned int t_bidi_data_nents; + + struct list_head state_list; + bool state_active; + + /* old task stop completion, consider merging with some of the above */ + struct completion task_stop_comp; + + /* backend private data */ + void *priv; + + /* Used for lun->lun_ref counting */ + int lun_ref_active; + + /* DIF related members */ + enum target_prot_op prot_op; + enum target_prot_type prot_type; + u8 prot_checks; + u32 prot_length; + u32 reftag_seed; + struct scatterlist *t_prot_sg; + unsigned int t_prot_nents; + sense_reason_t pi_err; + sector_t bad_sector; + bool prot_pto; +}; struct se_ua { u8 ua_asc; u8 ua_ascq; struct se_node_acl *ua_nacl; - struct list_head ua_dev_list; struct list_head ua_nacl_list; -} ____cacheline_aligned; +}; struct se_node_acl { char initiatorname[TRANSPORT_IQN_LEN]; /* Used to signal demo mode created ACL, disabled by default */ - int dynamic_node_acl:1; + bool dynamic_node_acl; + bool acl_stop:1; u32 queue_depth; u32 acl_index; - u64 num_cmds; - u64 read_bytes; - u64 write_bytes; - spinlock_t stats_lock; +#define MAX_ACL_TAG_SIZE 64 + char acl_tag[MAX_ACL_TAG_SIZE]; /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */ atomic_t acl_pr_ref_count; - struct se_dev_entry *device_list; + struct se_dev_entry **device_list; struct se_session *nacl_sess; struct se_portal_group *se_tpg; spinlock_t device_list_lock; @@ -601,27 +598,41 @@ struct se_node_acl { struct config_group acl_attrib_group; struct config_group acl_auth_group; struct config_group acl_param_group; - struct config_group *acl_default_groups[4]; + struct config_group acl_fabric_stat_group; + struct config_group *acl_default_groups[5]; struct list_head acl_list; struct list_head acl_sess_list; -} ____cacheline_aligned; + struct completion acl_free_comp; + struct kref acl_kref; +}; struct se_session { + unsigned sess_tearing_down:1; u64 sess_bin_isid; + enum target_prot_op sup_prot_ops; struct se_node_acl *se_node_acl; struct se_portal_group *se_tpg; void *fabric_sess_ptr; struct list_head sess_list; struct list_head sess_acl_list; -} ____cacheline_aligned; - -#define SE_SESS(cmd) ((struct se_session *)(cmd)->se_sess) -#define SE_NODE_ACL(sess) ((struct se_node_acl *)(sess)->se_node_acl) + struct list_head sess_cmd_list; + struct list_head sess_wait_list; + spinlock_t sess_cmd_lock; + struct kref sess_kref; + void *sess_cmd_map; + struct percpu_ida sess_tag_pool; +}; struct se_device; struct se_transform_info; struct scatterlist; +struct se_ml_stat_grps { + struct config_group stat_group; + struct config_group scsi_auth_intr_group; + struct config_group scsi_att_intr_port_group; +}; + struct se_lun_acl { char initiatorname[TRANSPORT_IQN_LEN]; u32 mapped_lun; @@ -629,18 +640,15 @@ struct se_lun_acl { struct se_lun *se_lun; struct list_head lacl_list; struct config_group se_lun_group; -} ____cacheline_aligned; + struct se_ml_stat_grps ml_stat_grps; +}; struct se_dev_entry { - int def_pr_registered:1; + bool def_pr_registered; /* See transport_lunflags_table */ u32 lun_flags; - u32 deve_cmds; u32 mapped_lun; - u32 average_bytes; - u32 last_byte_count; u32 total_cmds; - u32 total_bytes; u64 pr_res_key; u64 creation_time; u32 attach_count; @@ -654,18 +662,10 @@ struct se_dev_entry { struct se_lun *se_lun; struct list_head alua_port_list; struct list_head ua_list; -} ____cacheline_aligned; - -struct se_dev_limits { - /* Max supported HW queue depth */ - u32 hw_queue_depth; - /* Max supported virtual queue depth */ - u32 queue_depth; - /* From include/linux/blkdev.h for the other HW/SW limits. */ - struct queue_limits limits; -} ____cacheline_aligned; +}; struct se_dev_attrib { + int emulate_model_alias; int emulate_dpo; int emulate_fua_write; int emulate_fua_read; @@ -674,107 +674,107 @@ struct se_dev_attrib { int emulate_tas; int emulate_tpu; int emulate_tpws; - int emulate_reservations; - int emulate_alua; + int emulate_caw; + int emulate_3pc; + int pi_prot_format; + enum target_prot_type pi_prot_type; + enum target_prot_type hw_pi_prot_type; int enforce_pr_isids; + int is_nonrot; + int emulate_rest_reord; u32 hw_block_size; u32 block_size; u32 hw_max_sectors; - u32 max_sectors; + u32 fabric_max_sectors; u32 optimal_sectors; u32 hw_queue_depth; u32 queue_depth; - u32 task_timeout; u32 max_unmap_lba_count; u32 max_unmap_block_desc_count; u32 unmap_granularity; u32 unmap_granularity_alignment; - struct se_subsystem_dev *da_sub_dev; + u32 max_write_same_len; + u32 max_bytes_per_io; + struct se_device *da_dev; struct config_group da_group; -} ____cacheline_aligned; - -struct se_subsystem_dev { -/* Used for struct se_subsystem_dev-->se_dev_alias, must be less than PAGE_SIZE */ -#define SE_DEV_ALIAS_LEN 512 - unsigned char se_dev_alias[SE_DEV_ALIAS_LEN]; -/* Used for struct se_subsystem_dev->se_dev_udev_path[], must be less than PAGE_SIZE */ -#define SE_UDEV_PATH_LEN 512 - unsigned char se_dev_udev_path[SE_UDEV_PATH_LEN]; - u32 su_dev_flags; - struct se_hba *se_dev_hba; - struct se_device *se_dev_ptr; - struct se_dev_attrib se_dev_attrib; - /* T10 Asymmetric Logical Unit Assignment for Target Ports */ - struct t10_alua t10_alua; - /* T10 Inquiry and VPD WWN Information */ - struct t10_wwn t10_wwn; - /* T10 SPC-2 + SPC-3 Reservations */ - struct t10_reservation_template t10_reservation; - spinlock_t se_dev_lock; - void *se_dev_su_ptr; - struct list_head g_se_dev_list; - struct config_group se_dev_group; - /* For T10 Reservations */ - struct config_group se_dev_pr_group; -} ____cacheline_aligned; - -#define T10_ALUA(su_dev) (&(su_dev)->t10_alua) -#define T10_RES(su_dev) (&(su_dev)->t10_reservation) -#define T10_PR_OPS(su_dev) (&(su_dev)->t10_reservation.pr_ops) +}; + +struct se_port_stat_grps { + struct config_group stat_group; + struct config_group scsi_port_group; + struct config_group scsi_tgt_port_group; + struct config_group scsi_transport_group; +}; + +struct se_lun { +#define SE_LUN_LINK_MAGIC 0xffff7771 + u32 lun_link_magic; + /* See transport_lun_status_table */ + enum transport_lun_status_table lun_status; + u32 lun_access; + u32 lun_flags; + u32 unpacked_lun; + atomic_t lun_acl_count; + spinlock_t lun_acl_lock; + spinlock_t lun_sep_lock; + struct completion lun_shutdown_comp; + struct list_head lun_acl_list; + struct se_device *lun_se_dev; + struct se_port *lun_sep; + struct config_group lun_group; + struct se_port_stat_grps port_stat_grps; + struct completion lun_ref_comp; + struct percpu_ref lun_ref; +}; + +struct se_dev_stat_grps { + struct config_group stat_group; + struct config_group scsi_dev_group; + struct config_group scsi_tgt_dev_group; + struct config_group scsi_lu_group; +}; struct se_device { - /* Set to 1 if thread is NOT sleeping on thread_sem */ - u8 thread_active; - u8 dev_status_timer_flags; +#define SE_DEV_LINK_MAGIC 0xfeeddeef + u32 dev_link_magic; /* RELATIVE TARGET PORT IDENTIFER Counter */ u16 dev_rpti_counter; /* Used for SAM Task Attribute ordering */ u32 dev_cur_ordered_id; u32 dev_flags; +#define DF_CONFIGURED 0x00000001 +#define DF_FIRMWARE_VPD_UNIT_SERIAL 0x00000002 +#define DF_EMULATED_VPD_UNIT_SERIAL 0x00000004 +#define DF_USING_UDEV_PATH 0x00000008 +#define DF_USING_ALIAS 0x00000010 u32 dev_port_count; - /* See transport_device_status_table */ - u32 dev_status; - u32 dev_tcq_window_closed; /* Physical device queue depth */ u32 queue_depth; /* Used for SPC-2 reservations enforce of ISIDs */ u64 dev_res_bin_isid; - t10_task_attr_index_t dev_task_attr_type; /* Pointer to transport specific device structure */ - void *dev_ptr; u32 dev_index; u64 creation_time; - u32 num_resets; - u64 num_cmds; - u64 read_bytes; - u64 write_bytes; - spinlock_t stats_lock; + atomic_long_t num_resets; + atomic_long_t num_cmds; + atomic_long_t read_bytes; + atomic_long_t write_bytes; /* Active commands on this virtual SE device */ - atomic_t active_cmds; atomic_t simple_cmds; - atomic_t depth_left; atomic_t dev_ordered_id; - atomic_t dev_tur_active; - atomic_t execute_tasks; - atomic_t dev_status_thr_count; - atomic_t dev_hoq_count; atomic_t dev_ordered_sync; - struct se_obj dev_obj; - struct se_obj dev_access_obj; - struct se_obj dev_export_obj; - struct se_queue_obj *dev_queue_obj; - struct se_queue_obj *dev_status_queue_obj; + atomic_t dev_qf_count; + int export_count; spinlock_t delayed_cmd_lock; - spinlock_t ordered_cmd_lock; spinlock_t execute_task_lock; - spinlock_t state_task_lock; - spinlock_t dev_alua_lock; spinlock_t dev_reservation_lock; - spinlock_t dev_state_lock; - spinlock_t dev_status_lock; - spinlock_t dev_status_thr_lock; + unsigned int dev_reservation_flags; +#define DRF_SPC2_RESERVATIONS 0x00000001 +#define DRF_SPC2_RESERVATIONS_WITH_ISID 0x00000002 spinlock_t se_port_lock; spinlock_t se_tmr_lock; + spinlock_t qf_cmd_lock; + struct semaphore caw_sem; /* Used for legacy SPC-2 reservationsa */ struct se_node_acl *dev_reserved_node_acl; /* Used for ALUA Logical Unit Group membership */ @@ -783,30 +783,36 @@ struct se_device { struct t10_pr_registration *dev_pr_res_holder; struct list_head dev_sep_list; struct list_head dev_tmr_list; - struct timer_list dev_status_timer; - /* Pointer to descriptor for processing thread */ - struct task_struct *process_thread; - pid_t process_thread_pid; - struct task_struct *dev_mgmt_thread; + struct workqueue_struct *tmr_wq; + struct work_struct qf_work_queue; struct list_head delayed_cmd_list; - struct list_head ordered_cmd_list; - struct list_head execute_task_list; - struct list_head state_task_list; + struct list_head state_list; + struct list_head qf_cmd_list; + struct list_head g_dev_node; /* Pointer to associated SE HBA */ struct se_hba *se_hba; - struct se_subsystem_dev *se_sub_dev; + /* T10 Inquiry and VPD WWN Information */ + struct t10_wwn t10_wwn; + /* T10 Asymmetric Logical Unit Assignment for Target Ports */ + struct t10_alua t10_alua; + /* T10 SPC-2 + SPC-3 Reservations */ + struct t10_reservation t10_pr; + struct se_dev_attrib dev_attrib; + struct config_group dev_group; + struct config_group dev_pr_group; + struct se_dev_stat_grps dev_stat_grps; +#define SE_DEV_ALIAS_LEN 512 /* must be less than PAGE_SIZE */ + unsigned char dev_alias[SE_DEV_ALIAS_LEN]; +#define SE_UDEV_PATH_LEN 512 /* must be less than PAGE_SIZE */ + unsigned char udev_path[SE_UDEV_PATH_LEN]; /* Pointer to template of function pointers for transport */ struct se_subsystem_api *transport; /* Linked list for struct se_hba struct se_device list */ struct list_head dev_list; - /* Linked list for struct se_global->g_se_dev_list */ - struct list_head g_se_dev_list; -} ____cacheline_aligned; - -#define SE_DEV(cmd) ((struct se_device *)(cmd)->se_lun->lun_se_dev) -#define SU_DEV(dev) ((struct se_subsystem_dev *)(dev)->se_sub_dev) -#define DEV_ATTRIB(dev) (&(dev)->se_sub_dev->se_dev_attrib) -#define DEV_T10_WWN(dev) (&(dev)->se_sub_dev->t10_wwn) + struct se_lun xcopy_lun; + /* Protection Information */ + int prot_length; +}; struct se_hba { u16 hba_tpgt; @@ -816,49 +822,20 @@ struct se_hba { /* Virtual iSCSI devices attached. */ u32 dev_count; u32 hba_index; - atomic_t load_balance_queue; - atomic_t left_queue_depth; - /* Maximum queue depth the HBA can handle. */ - atomic_t max_queue_depth; /* Pointer to transport specific host structure. */ void *hba_ptr; - /* Linked list for struct se_device */ - struct list_head hba_dev_list; - struct list_head hba_list; + struct list_head hba_node; spinlock_t device_lock; - spinlock_t hba_queue_lock; struct config_group hba_group; struct mutex hba_access_mutex; struct se_subsystem_api *transport; -} ____cacheline_aligned; - -#define SE_HBA(d) ((struct se_hba *)(d)->se_hba) - -struct se_lun { - /* See transport_lun_status_table */ - enum transport_lun_status_table lun_status; - u32 lun_access; - u32 lun_flags; - u32 unpacked_lun; - atomic_t lun_acl_count; - spinlock_t lun_acl_lock; - spinlock_t lun_cmd_lock; - spinlock_t lun_sep_lock; - struct completion lun_shutdown_comp; - struct list_head lun_cmd_list; - struct list_head lun_acl_list; - struct se_device *lun_se_dev; - struct config_group lun_group; - struct se_port *lun_sep; -} ____cacheline_aligned; - -#define SE_LUN(c) ((struct se_lun *)(c)->se_lun) +}; struct scsi_port_stats { u64 cmd_pdus; u64 tx_data_octets; u64 rx_data_octets; -} ____cacheline_aligned; +}; struct se_port { /* RELATIVE TARGET PORT IDENTIFER */ @@ -868,7 +845,6 @@ struct se_port { u32 sep_index; struct scsi_port_stats sep_stats; /* Used for ALUA Target Port Groups membership */ - atomic_t sep_tg_pt_gp_active; atomic_t sep_tg_pt_secondary_offline; /* Used for PR ALL_TG_PT=1 */ atomic_t sep_tg_pt_ref_cnt; @@ -879,12 +855,12 @@ struct se_port { struct se_portal_group *sep_tpg; struct list_head sep_alua_list; struct list_head sep_list; -} ____cacheline_aligned; +}; struct se_tpg_np { struct se_portal_group *tpg_np_parent; struct config_group tpg_np_group; -} ____cacheline_aligned; +}; struct se_portal_group { /* Type of target portal group, see transport_tpg_type_table */ @@ -900,54 +876,31 @@ struct se_portal_group { spinlock_t tpg_lun_lock; /* Pointer to $FABRIC_MOD portal group */ void *se_tpg_fabric_ptr; - struct list_head se_tpg_list; + struct list_head se_tpg_node; /* linked list for initiator ACL list */ struct list_head acl_node_list; - struct se_lun *tpg_lun_list; + struct se_lun **tpg_lun_list; struct se_lun tpg_virt_lun0; - /* List of TCM sessions assoicated wth this TPG */ + /* List of TCM sessions associated wth this TPG */ struct list_head tpg_sess_list; /* Pointer to $FABRIC_MOD dependent code */ struct target_core_fabric_ops *se_tpg_tfo; struct se_wwn *se_tpg_wwn; struct config_group tpg_group; - struct config_group *tpg_default_groups[6]; + struct config_group *tpg_default_groups[7]; struct config_group tpg_lun_group; struct config_group tpg_np_group; struct config_group tpg_acl_group; struct config_group tpg_attrib_group; + struct config_group tpg_auth_group; struct config_group tpg_param_group; -} ____cacheline_aligned; - -#define TPG_TFO(se_tpg) ((struct target_core_fabric_ops *)(se_tpg)->se_tpg_tfo) +}; struct se_wwn { struct target_fabric_configfs *wwn_tf; struct config_group wwn_group; -} ____cacheline_aligned; - -struct se_global { - u16 alua_lu_gps_counter; - int g_sub_api_initialized; - u32 in_shutdown; - u32 alua_lu_gps_count; - u32 g_hba_id_counter; - struct config_group target_core_hbagroup; - struct config_group alua_group; - struct config_group alua_lu_gps_group; - struct list_head g_lu_gps_list; - struct list_head g_se_tpg_list; - struct list_head g_hba_list; - struct list_head g_se_dev_list; - struct se_hba *g_lun0_hba; - struct se_subsystem_dev *g_lun0_su_dev; - struct se_device *g_lun0_dev; - struct t10_alua_lu_gp *default_lu_gp; - spinlock_t g_device_lock; - spinlock_t hba_lock; - spinlock_t se_tpg_lock; - spinlock_t lu_gps_lock; - spinlock_t plugin_class_lock; -} ____cacheline_aligned; + struct config_group *wwn_default_groups[2]; + struct config_group fabric_stat_group; +}; #endif /* TARGET_CORE_BASE_H */ diff --git a/include/target/target_core_configfs.h b/include/target/target_core_configfs.h index 40e6e740527..e0801386e4d 100644 --- a/include/target/target_core_configfs.h +++ b/include/target/target_core_configfs.h @@ -14,20 +14,25 @@ extern void target_fabric_configfs_deregister(struct target_fabric_configfs *); struct target_fabric_configfs_template { struct config_item_type tfc_discovery_cit; struct config_item_type tfc_wwn_cit; + struct config_item_type tfc_wwn_fabric_stats_cit; struct config_item_type tfc_tpg_cit; struct config_item_type tfc_tpg_base_cit; struct config_item_type tfc_tpg_lun_cit; struct config_item_type tfc_tpg_port_cit; + struct config_item_type tfc_tpg_port_stat_cit; struct config_item_type tfc_tpg_np_cit; struct config_item_type tfc_tpg_np_base_cit; struct config_item_type tfc_tpg_attrib_cit; + struct config_item_type tfc_tpg_auth_cit; struct config_item_type tfc_tpg_param_cit; struct config_item_type tfc_tpg_nacl_cit; struct config_item_type tfc_tpg_nacl_base_cit; struct config_item_type tfc_tpg_nacl_attrib_cit; struct config_item_type tfc_tpg_nacl_auth_cit; struct config_item_type tfc_tpg_nacl_param_cit; + struct config_item_type tfc_tpg_nacl_stat_cit; struct config_item_type tfc_tpg_mappedlun_cit; + struct config_item_type tfc_tpg_mappedlun_stat_cit; }; struct target_fabric_configfs { @@ -49,4 +54,3 @@ struct target_fabric_configfs { struct target_fabric_configfs_template tf_cit_tmpl; }; -#define TF_CIT_TMPL(tf) (&(tf)->tf_cit_tmpl) diff --git a/include/target/target_core_device.h b/include/target/target_core_device.h deleted file mode 100644 index 52b18a5752c..00000000000 --- a/include/target/target_core_device.h +++ /dev/null @@ -1,61 +0,0 @@ -#ifndef TARGET_CORE_DEVICE_H -#define TARGET_CORE_DEVICE_H - -extern int transport_get_lun_for_cmd(struct se_cmd *, unsigned char *, u32); -extern int transport_get_lun_for_tmr(struct se_cmd *, u32); -extern struct se_dev_entry *core_get_se_deve_from_rtpi( - struct se_node_acl *, u16); -extern int core_free_device_list_for_node(struct se_node_acl *, - struct se_portal_group *); -extern void core_dec_lacl_count(struct se_node_acl *, struct se_cmd *); -extern void core_update_device_list_access(u32, u32, struct se_node_acl *); -extern int core_update_device_list_for_node(struct se_lun *, struct se_lun_acl *, u32, - u32, struct se_node_acl *, - struct se_portal_group *, int); -extern void core_clear_lun_from_tpg(struct se_lun *, struct se_portal_group *); -extern int core_dev_export(struct se_device *, struct se_portal_group *, - struct se_lun *); -extern void core_dev_unexport(struct se_device *, struct se_portal_group *, - struct se_lun *); -extern int transport_core_report_lun_response(struct se_cmd *); -extern void se_release_device_for_hba(struct se_device *); -extern void se_release_vpd_for_dev(struct se_device *); -extern void se_clear_dev_ports(struct se_device *); -extern int se_free_virtual_device(struct se_device *, struct se_hba *); -extern int se_dev_check_online(struct se_device *); -extern int se_dev_check_shutdown(struct se_device *); -extern void se_dev_set_default_attribs(struct se_device *, struct se_dev_limits *); -extern int se_dev_set_task_timeout(struct se_device *, u32); -extern int se_dev_set_max_unmap_lba_count(struct se_device *, u32); -extern int se_dev_set_max_unmap_block_desc_count(struct se_device *, u32); -extern int se_dev_set_unmap_granularity(struct se_device *, u32); -extern int se_dev_set_unmap_granularity_alignment(struct se_device *, u32); -extern int se_dev_set_emulate_dpo(struct se_device *, int); -extern int se_dev_set_emulate_fua_write(struct se_device *, int); -extern int se_dev_set_emulate_fua_read(struct se_device *, int); -extern int se_dev_set_emulate_write_cache(struct se_device *, int); -extern int se_dev_set_emulate_ua_intlck_ctrl(struct se_device *, int); -extern int se_dev_set_emulate_tas(struct se_device *, int); -extern int se_dev_set_emulate_tpu(struct se_device *, int); -extern int se_dev_set_emulate_tpws(struct se_device *, int); -extern int se_dev_set_enforce_pr_isids(struct se_device *, int); -extern int se_dev_set_queue_depth(struct se_device *, u32); -extern int se_dev_set_max_sectors(struct se_device *, u32); -extern int se_dev_set_optimal_sectors(struct se_device *, u32); -extern int se_dev_set_block_size(struct se_device *, u32); -extern struct se_lun *core_dev_add_lun(struct se_portal_group *, struct se_hba *, - struct se_device *, u32); -extern int core_dev_del_lun(struct se_portal_group *, u32); -extern struct se_lun *core_get_lun_from_tpg(struct se_portal_group *, u32); -extern struct se_lun_acl *core_dev_init_initiator_node_lun_acl(struct se_portal_group *, - u32, char *, int *); -extern int core_dev_add_initiator_node_lun_acl(struct se_portal_group *, - struct se_lun_acl *, u32, u32); -extern int core_dev_del_initiator_node_lun_acl(struct se_portal_group *, - struct se_lun *, struct se_lun_acl *); -extern void core_dev_free_initiator_node_lun_acl(struct se_portal_group *, - struct se_lun_acl *lacl); -extern int core_dev_setup_virtual_lun0(void); -extern void core_dev_release_virtual_lun0(void); - -#endif /* TARGET_CORE_DEVICE_H */ diff --git a/include/target/target_core_fabric.h b/include/target/target_core_fabric.h new file mode 100644 index 00000000000..22a4e98eec8 --- /dev/null +++ b/include/target/target_core_fabric.h @@ -0,0 +1,213 @@ +#ifndef TARGET_CORE_FABRIC_H +#define TARGET_CORE_FABRIC_H + +struct target_core_fabric_ops { + struct configfs_subsystem *tf_subsys; + char *(*get_fabric_name)(void); + u8 (*get_fabric_proto_ident)(struct se_portal_group *); + char *(*tpg_get_wwn)(struct se_portal_group *); + u16 (*tpg_get_tag)(struct se_portal_group *); + u32 (*tpg_get_default_depth)(struct se_portal_group *); + u32 (*tpg_get_pr_transport_id)(struct se_portal_group *, + struct se_node_acl *, + struct t10_pr_registration *, int *, + unsigned char *); + u32 (*tpg_get_pr_transport_id_len)(struct se_portal_group *, + struct se_node_acl *, + struct t10_pr_registration *, int *); + char *(*tpg_parse_pr_out_transport_id)(struct se_portal_group *, + const char *, u32 *, char **); + int (*tpg_check_demo_mode)(struct se_portal_group *); + int (*tpg_check_demo_mode_cache)(struct se_portal_group *); + int (*tpg_check_demo_mode_write_protect)(struct se_portal_group *); + int (*tpg_check_prod_mode_write_protect)(struct se_portal_group *); + /* + * Optionally used by fabrics to allow demo-mode login, but not + * expose any TPG LUNs, and return 'not connected' in standard + * inquiry response + */ + int (*tpg_check_demo_mode_login_only)(struct se_portal_group *); + struct se_node_acl *(*tpg_alloc_fabric_acl)( + struct se_portal_group *); + void (*tpg_release_fabric_acl)(struct se_portal_group *, + struct se_node_acl *); + u32 (*tpg_get_inst_index)(struct se_portal_group *); + /* + * Optional to release struct se_cmd and fabric dependent allocated + * I/O descriptor in transport_cmd_check_stop(). + * + * Returning 1 will signal a descriptor has been released. + * Returning 0 will signal a descriptor has not been released. + */ + int (*check_stop_free)(struct se_cmd *); + void (*release_cmd)(struct se_cmd *); + void (*put_session)(struct se_session *); + /* + * Called with spin_lock_bh(struct se_portal_group->session_lock held. + */ + int (*shutdown_session)(struct se_session *); + void (*close_session)(struct se_session *); + u32 (*sess_get_index)(struct se_session *); + /* + * Used only for SCSI fabrics that contain multi-value TransportIDs + * (like iSCSI). All other SCSI fabrics should set this to NULL. + */ + u32 (*sess_get_initiator_sid)(struct se_session *, + unsigned char *, u32); + int (*write_pending)(struct se_cmd *); + int (*write_pending_status)(struct se_cmd *); + void (*set_default_node_attributes)(struct se_node_acl *); + u32 (*get_task_tag)(struct se_cmd *); + int (*get_cmd_state)(struct se_cmd *); + int (*queue_data_in)(struct se_cmd *); + int (*queue_status)(struct se_cmd *); + void (*queue_tm_rsp)(struct se_cmd *); + void (*aborted_task)(struct se_cmd *); + /* + * fabric module calls for target_core_fabric_configfs.c + */ + struct se_wwn *(*fabric_make_wwn)(struct target_fabric_configfs *, + struct config_group *, const char *); + void (*fabric_drop_wwn)(struct se_wwn *); + struct se_portal_group *(*fabric_make_tpg)(struct se_wwn *, + struct config_group *, const char *); + void (*fabric_drop_tpg)(struct se_portal_group *); + int (*fabric_post_link)(struct se_portal_group *, + struct se_lun *); + void (*fabric_pre_unlink)(struct se_portal_group *, + struct se_lun *); + struct se_tpg_np *(*fabric_make_np)(struct se_portal_group *, + struct config_group *, const char *); + void (*fabric_drop_np)(struct se_tpg_np *); + struct se_node_acl *(*fabric_make_nodeacl)(struct se_portal_group *, + struct config_group *, const char *); + void (*fabric_drop_nodeacl)(struct se_node_acl *); +}; + +struct se_session *transport_init_session(enum target_prot_op); +int transport_alloc_session_tags(struct se_session *, unsigned int, + unsigned int); +struct se_session *transport_init_session_tags(unsigned int, unsigned int, + enum target_prot_op); +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 target_get_session(struct se_session *); +void target_put_session(struct se_session *); +void transport_free_session(struct se_session *); +void target_put_nacl(struct se_node_acl *); +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 *); +sense_reason_t transport_lookup_cmd_lun(struct se_cmd *, u32); +sense_reason_t target_setup_cmd_from_cdb(struct se_cmd *, unsigned char *); +int target_submit_cmd_map_sgls(struct se_cmd *, struct se_session *, + unsigned char *, unsigned char *, u32, u32, int, int, int, + struct scatterlist *, u32, struct scatterlist *, u32, + struct scatterlist *, u32); +int target_submit_cmd(struct se_cmd *, struct se_session *, unsigned char *, + unsigned char *, u32, u32, int, int, int); +int target_submit_tmr(struct se_cmd *se_cmd, struct se_session *se_sess, + unsigned char *sense, u32 unpacked_lun, + void *fabric_tmr_ptr, unsigned char tm_type, + gfp_t, unsigned int, int); +int transport_handle_cdb_direct(struct se_cmd *); +sense_reason_t transport_generic_new_cmd(struct se_cmd *); + +void target_execute_cmd(struct se_cmd *cmd); + +int 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 *, + sense_reason_t, int); +int target_get_sess_cmd(struct se_session *, struct se_cmd *, bool); +int target_put_sess_cmd(struct se_session *, struct se_cmd *); +void target_sess_cmd_list_set_waiting(struct se_session *); +void target_wait_for_sess_cmds(struct se_session *); + +int core_alua_check_nonop_delay(struct se_cmd *); + +int 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 *); +void transport_generic_request_failure(struct se_cmd *, sense_reason_t); +void __target_execute_cmd(struct se_cmd *); +int transport_lookup_tmr_lun(struct se_cmd *, u32); + +struct se_node_acl *core_tpg_get_initiator_node_acl(struct se_portal_group *tpg, + unsigned char *); +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_set_initiator_node_tag(struct se_portal_group *, + struct se_node_acl *, const char *); +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 **); + +/* + * The LIO target core uses DMA_TO_DEVICE to mean that data is going + * to the target (eg handling a WRITE) and DMA_FROM_DEVICE to mean + * that data is coming from the target (eg handling a READ). However, + * this is just the opposite of what we have to tell the DMA mapping + * layer -- eg when handling a READ, the HBA will have to DMA the data + * out of memory so it can send it to the initiator, which means we + * need to use DMA_TO_DEVICE when we map the data. + */ +static inline enum dma_data_direction +target_reverse_dma_direction(struct se_cmd *se_cmd) +{ + if (se_cmd->se_cmd_flags & SCF_BIDI) + return DMA_BIDIRECTIONAL; + + switch (se_cmd->data_direction) { + case DMA_TO_DEVICE: + return DMA_FROM_DEVICE; + case DMA_FROM_DEVICE: + return DMA_TO_DEVICE; + case DMA_NONE: + default: + return DMA_NONE; + } +} + +#endif /* TARGET_CORE_FABRICH */ diff --git a/include/target/target_core_fabric_configfs.h b/include/target/target_core_fabric_configfs.h index a26fb7586a0..b32a14905cf 100644 --- a/include/target/target_core_fabric_configfs.h +++ b/include/target/target_core_fabric_configfs.h @@ -62,6 +62,17 @@ static struct target_fabric_tpg_attrib_attribute _fabric##_tpg_attrib_##_name = _fabric##_tpg_attrib_show_##_name, \ _fabric##_tpg_attrib_store_##_name); +CONFIGFS_EATTR_STRUCT(target_fabric_tpg_auth, se_portal_group); +#define TF_TPG_AUTH_ATTR(_fabric, _name, _mode) \ +static struct target_fabric_tpg_auth_attribute _fabric##_tpg_auth_##_name = \ + __CONFIGFS_EATTR(_name, _mode, \ + _fabric##_tpg_auth_show_##_name, \ + _fabric##_tpg_auth_store_##_name); + +#define TF_TPG_AUTH_ATTR_RO(_fabric, _name) \ +static struct target_fabric_tpg_auth_attribute _fabric##_tpg_auth_##_name = \ + __CONFIGFS_EATTR_RO(_name, \ + _fabric##_tpg_auth_show_##_name); CONFIGFS_EATTR_STRUCT(target_fabric_tpg_param, se_portal_group); #define TF_TPG_PARAM_ATTR(_fabric, _name, _mode) \ diff --git a/include/target/target_core_fabric_lib.h b/include/target/target_core_fabric_lib.h deleted file mode 100644 index c2f8d0e3a03..00000000000 --- 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_fabric_ops.h b/include/target/target_core_fabric_ops.h deleted file mode 100644 index f3ac12b019c..00000000000 --- a/include/target/target_core_fabric_ops.h +++ /dev/null @@ -1,100 +0,0 @@ -/* Defined in target_core_configfs.h */ -struct target_fabric_configfs; - -struct target_core_fabric_ops { - struct configfs_subsystem *tf_subsys; - /* - * Optional to signal struct se_task->task_sg[] padding entries - * for scatterlist chaining using transport_do_task_sg_link(), - * disabled by default - */ - int task_sg_chaining:1; - char *(*get_fabric_name)(void); - u8 (*get_fabric_proto_ident)(struct se_portal_group *); - char *(*tpg_get_wwn)(struct se_portal_group *); - u16 (*tpg_get_tag)(struct se_portal_group *); - u32 (*tpg_get_default_depth)(struct se_portal_group *); - u32 (*tpg_get_pr_transport_id)(struct se_portal_group *, - struct se_node_acl *, - struct t10_pr_registration *, int *, - unsigned char *); - u32 (*tpg_get_pr_transport_id_len)(struct se_portal_group *, - struct se_node_acl *, - struct t10_pr_registration *, int *); - char *(*tpg_parse_pr_out_transport_id)(struct se_portal_group *, - const char *, u32 *, char **); - int (*tpg_check_demo_mode)(struct se_portal_group *); - int (*tpg_check_demo_mode_cache)(struct se_portal_group *); - int (*tpg_check_demo_mode_write_protect)(struct se_portal_group *); - int (*tpg_check_prod_mode_write_protect)(struct se_portal_group *); - struct se_node_acl *(*tpg_alloc_fabric_acl)( - struct se_portal_group *); - void (*tpg_release_fabric_acl)(struct se_portal_group *, - struct se_node_acl *); - u32 (*tpg_get_inst_index)(struct se_portal_group *); - /* - * Optional function pointer for TCM to perform command map - * from TCM processing thread context, for those struct se_cmd - * initally allocated in interrupt context. - */ - int (*new_cmd_map)(struct se_cmd *); - /* - * Optional function pointer for TCM fabric modules that use - * Linux/NET sockets to allocate struct iovec array to struct se_cmd - */ - int (*alloc_cmd_iovecs)(struct se_cmd *); - /* - * Optional to release struct se_cmd and fabric dependent allocated - * I/O descriptor in transport_cmd_check_stop() - */ - void (*check_stop_free)(struct se_cmd *); - void (*release_cmd_to_pool)(struct se_cmd *); - void (*release_cmd_direct)(struct se_cmd *); - /* - * Called with spin_lock_bh(struct se_portal_group->session_lock held. - */ - int (*shutdown_session)(struct se_session *); - void (*close_session)(struct se_session *); - void (*stop_session)(struct se_session *, int, int); - void (*fall_back_to_erl0)(struct se_session *); - int (*sess_logged_in)(struct se_session *); - u32 (*sess_get_index)(struct se_session *); - /* - * Used only for SCSI fabrics that contain multi-value TransportIDs - * (like iSCSI). All other SCSI fabrics should set this to NULL. - */ - u32 (*sess_get_initiator_sid)(struct se_session *, - unsigned char *, u32); - int (*write_pending)(struct se_cmd *); - int (*write_pending_status)(struct se_cmd *); - void (*set_default_node_attributes)(struct se_node_acl *); - u32 (*get_task_tag)(struct se_cmd *); - int (*get_cmd_state)(struct se_cmd *); - void (*new_cmd_failure)(struct se_cmd *); - int (*queue_data_in)(struct se_cmd *); - int (*queue_status)(struct se_cmd *); - int (*queue_tm_rsp)(struct se_cmd *); - u16 (*set_fabric_sense_len)(struct se_cmd *, u32); - u16 (*get_fabric_sense_len)(void); - int (*is_state_remove)(struct se_cmd *); - u64 (*pack_lun)(unsigned int); - /* - * fabric module calls for target_core_fabric_configfs.c - */ - struct se_wwn *(*fabric_make_wwn)(struct target_fabric_configfs *, - struct config_group *, const char *); - void (*fabric_drop_wwn)(struct se_wwn *); - struct se_portal_group *(*fabric_make_tpg)(struct se_wwn *, - struct config_group *, const char *); - void (*fabric_drop_tpg)(struct se_portal_group *); - int (*fabric_post_link)(struct se_portal_group *, - struct se_lun *); - void (*fabric_pre_unlink)(struct se_portal_group *, - struct se_lun *); - struct se_tpg_np *(*fabric_make_np)(struct se_portal_group *, - struct config_group *, const char *); - void (*fabric_drop_np)(struct se_tpg_np *); - struct se_node_acl *(*fabric_make_nodeacl)(struct se_portal_group *, - struct config_group *, const char *); - void (*fabric_drop_nodeacl)(struct se_node_acl *); -}; diff --git a/include/target/target_core_tmr.h b/include/target/target_core_tmr.h deleted file mode 100644 index 6c8248bc2c6..00000000000 --- a/include/target/target_core_tmr.h +++ /dev/null @@ -1,43 +0,0 @@ -#ifndef TARGET_CORE_TMR_H -#define TARGET_CORE_TMR_H - -/* task management function values */ -#ifdef ABORT_TASK -#undef ABORT_TASK -#endif /* ABORT_TASK */ -#define ABORT_TASK 1 -#ifdef ABORT_TASK_SET -#undef ABORT_TASK_SET -#endif /* ABORT_TASK_SET */ -#define ABORT_TASK_SET 2 -#ifdef CLEAR_ACA -#undef CLEAR_ACA -#endif /* CLEAR_ACA */ -#define CLEAR_ACA 3 -#ifdef CLEAR_TASK_SET -#undef CLEAR_TASK_SET -#endif /* CLEAR_TASK_SET */ -#define CLEAR_TASK_SET 4 -#define LUN_RESET 5 -#define TARGET_WARM_RESET 6 -#define TARGET_COLD_RESET 7 -#define TASK_REASSIGN 8 - -/* task management response values */ -#define TMR_FUNCTION_COMPLETE 0 -#define TMR_TASK_DOES_NOT_EXIST 1 -#define TMR_LUN_DOES_NOT_EXIST 2 -#define TMR_TASK_STILL_ALLEGIANT 3 -#define TMR_TASK_FAILOVER_NOT_SUPPORTED 4 -#define TMR_TASK_MGMT_FUNCTION_NOT_SUPPORTED 5 -#define TMR_FUNCTION_AUTHORIZATION_FAILED 6 -#define TMR_FUNCTION_REJECTED 255 - -extern struct kmem_cache *se_tmr_req_cache; - -extern struct se_tmr_req *core_tmr_alloc_req(struct se_cmd *, void *, u8); -extern void core_tmr_release_req(struct se_tmr_req *); -extern int core_tmr_lun_reset(struct se_device *, struct se_tmr_req *, - struct list_head *, struct se_cmd *); - -#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 77e18729c4c..00000000000 --- a/include/target/target_core_tpg.h +++ /dev/null @@ -1,35 +0,0 @@ -#ifndef TARGET_CORE_TPG_H -#define TARGET_CORE_TPG_H - -extern struct se_node_acl *__core_tpg_get_initiator_node_acl(struct se_portal_group *tpg, - const char *); -extern struct se_node_acl *core_tpg_get_initiator_node_acl(struct se_portal_group *tpg, - unsigned char *); -extern void core_tpg_add_node_to_devs(struct se_node_acl *, - struct se_portal_group *); -extern struct se_node_acl *core_tpg_check_initiator_node_acl( - struct se_portal_group *, - unsigned char *); -extern void core_tpg_wait_for_nacl_pr_ref(struct se_node_acl *); -extern void core_tpg_wait_for_mib_ref(struct se_node_acl *); -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 *); -extern struct se_lun *core_tpg_pre_addlun(struct se_portal_group *, u32); -extern int core_tpg_post_addlun(struct se_portal_group *, struct se_lun *, u32, - void *); -extern struct se_lun *core_tpg_pre_dellun(struct se_portal_group *, u32, int *); -extern int core_tpg_post_dellun(struct se_portal_group *, struct se_lun *); - -#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 24694051157..00000000000 --- a/include/target/target_core_transport.h +++ /dev/null @@ -1,353 +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 PYX_TRANSPORT_SENT_TO_TRANSPORT 0 -#define PYX_TRANSPORT_WRITE_PENDING 1 - -#define PYX_TRANSPORT_UNKNOWN_SAM_OPCODE -1 -#define PYX_TRANSPORT_HBA_QUEUE_FULL -2 -#define PYX_TRANSPORT_REQ_TOO_MANY_SECTORS -3 -#define PYX_TRANSPORT_OUT_OF_MEMORY_RESOURCES -4 -#define PYX_TRANSPORT_INVALID_CDB_FIELD -5 -#define PYX_TRANSPORT_INVALID_PARAMETER_LIST -6 -#define PYX_TRANSPORT_LU_COMM_FAILURE -7 -#define PYX_TRANSPORT_UNKNOWN_MODE_PAGE -8 -#define PYX_TRANSPORT_WRITE_PROTECTED -9 -#define PYX_TRANSPORT_TASK_TIMEOUT -10 -#define PYX_TRANSPORT_RESERVATION_CONFLICT -11 -#define PYX_TRANSPORT_ILLEGAL_REQUEST -12 -#define PYX_TRANSPORT_USE_SENSE_REASON -13 - -#ifndef SAM_STAT_RESERVATION_CONFLICT -#define SAM_STAT_RESERVATION_CONFLICT 0x18 -#endif - -#define TRANSPORT_PLUGIN_FREE 0 -#define TRANSPORT_PLUGIN_REGISTERED 1 - -#define TRANSPORT_PLUGIN_PHBA_PDEV 1 -#define TRANSPORT_PLUGIN_VHBA_PDEV 2 -#define TRANSPORT_PLUGIN_VHBA_VDEV 3 - -/* For SE OBJ Plugins, in seconds */ -#define TRANSPORT_TIMEOUT_TUR 10 -#define TRANSPORT_TIMEOUT_TYPE_DISK 60 -#define TRANSPORT_TIMEOUT_TYPE_ROM 120 -#define TRANSPORT_TIMEOUT_TYPE_TAPE 600 -#define TRANSPORT_TIMEOUT_TYPE_OTHER 300 - -/* For se_task->task_state_flags */ -#define TSF_EXCEPTION_CLEARED 0x01 - -/* - * 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 */ -/* 10 Minutes */ -#define DA_TASK_TIMEOUT_MAX 600 -/* 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 - -#define SE_MODE_PAGE_BUF 512 - -#define MOD_MAX_SECTORS(ms, bs) (ms % (PAGE_SIZE / bs)) - -struct se_mem; -struct se_subsystem_api; - -extern int init_se_global(void); -extern void release_se_global(void); -extern void init_scsi_index_table(void); -extern u32 scsi_get_new_index(scsi_index_t); -extern void transport_init_queue_obj(struct se_queue_obj *); -extern int transport_subsystem_check_init(void); -extern int transport_subsystem_register(struct se_subsystem_api *); -extern void transport_subsystem_release(struct se_subsystem_api *); -extern void transport_load_plugins(void); -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_cmd_finish_abort(struct se_cmd *, int); -extern void transport_cmd_finish_abort_tmr(struct se_cmd *); -extern void transport_complete_sync_cache(struct se_cmd *, int); -extern void transport_complete_task(struct se_task *, int); -extern void transport_add_task_to_execute_queue(struct se_task *, - struct se_task *, - struct se_device *); -unsigned char *transport_dump_cmd_direction(struct se_cmd *); -extern void transport_dump_dev_state(struct se_device *, char *, int *); -extern void transport_dump_dev_info(struct se_device *, struct se_lun *, - unsigned long long, char *, int *); -extern void transport_dump_vpd_proto_id(struct t10_vpd *, - unsigned char *, int); -extern void transport_set_vpd_proto_id(struct t10_vpd *, unsigned char *); -extern int transport_dump_vpd_assoc(struct t10_vpd *, - unsigned char *, int); -extern int transport_set_vpd_assoc(struct t10_vpd *, unsigned char *); -extern int transport_dump_vpd_ident_type(struct t10_vpd *, - unsigned char *, int); -extern int transport_set_vpd_ident_type(struct t10_vpd *, unsigned char *); -extern int transport_dump_vpd_ident(struct t10_vpd *, - unsigned char *, int); -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_device_setup_cmd(struct se_cmd *); -extern void transport_init_se_cmd(struct se_cmd *, - struct target_core_fabric_ops *, - struct se_session *, u32, int, int, - unsigned char *); -extern void transport_free_se_cmd(struct se_cmd *); -extern int transport_generic_allocate_tasks(struct se_cmd *, unsigned char *); -extern int transport_generic_handle_cdb(struct se_cmd *); -extern int transport_generic_handle_cdb_map(struct se_cmd *); -extern int transport_generic_handle_data(struct se_cmd *); -extern void transport_new_cmd_failure(struct se_cmd *); -extern int transport_generic_handle_tmr(struct se_cmd *); -extern void __transport_stop_task_timer(struct se_task *, unsigned long *); -extern unsigned char transport_asciihex_to_binaryhex(unsigned char val[2]); -extern int transport_generic_map_mem_to_cmd(struct se_cmd *cmd, struct scatterlist *, u32, - struct scatterlist *, u32); -extern int transport_clear_lun_from_sessions(struct se_lun *); -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_send_task_abort(struct se_cmd *); -extern void transport_release_cmd_to_pool(struct se_cmd *); -extern void transport_generic_free_cmd(struct se_cmd *, int, int, int); -extern void transport_generic_wait_for_cmds(struct se_cmd *, int); -extern u32 transport_calc_sg_num(struct se_task *, struct se_mem *, u32); -extern int transport_map_mem_to_sg(struct se_task *, struct list_head *, - void *, struct se_mem *, - struct se_mem **, u32 *, u32 *); -extern void transport_do_task_sg_chain(struct se_cmd *); -extern void transport_generic_process_write(struct se_cmd *); -extern int transport_generic_do_tmr(struct se_cmd *); -/* From target_core_alua.c */ -extern int core_alua_check_nonop_delay(struct se_cmd *); - -/* - * 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; - /* - * struct module for struct se_hba references - */ - struct module *owner; - /* - * Used for global se_subsystem_api list_head - */ - struct list_head sub_api_list; - /* - * For SCF_SCSI_NON_DATA_CDB - */ - int (*cdb_none)(struct se_task *); - /* - * For SCF_SCSI_CONTROL_NONSG_IO_CDB - */ - int (*map_task_non_SG)(struct se_task *); - /* - * For SCF_SCSI_DATA_SG_IO_CDB and SCF_SCSI_CONTROL_SG_IO_CDB - */ - int (*map_task_SG)(struct se_task *); - /* - * 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 *); - - /* - * dpo_emulated(): - */ - int (*dpo_emulated)(struct se_device *); - /* - * fua_write_emulated(): - */ - int (*fua_write_emulated)(struct se_device *); - /* - * fua_read_emulated(): - */ - int (*fua_read_emulated)(struct se_device *); - /* - * write_cache_emulated(): - */ - int (*write_cache_emulated)(struct se_device *); - /* - * 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)(struct se_cmd *); - /* - * 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_cdb(): - */ - unsigned char *(*get_cdb)(struct se_task *); - /* - * 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 *); - /* - * do_se_mem_map(): - */ - int (*do_se_mem_map)(struct se_task *, struct list_head *, void *, - struct se_mem *, struct se_mem **, u32 *, u32 *); - /* - * get_sense_buffer(): - */ - unsigned char *(*get_sense_buffer)(struct se_task *); -} ____cacheline_aligned; - -#define TRANSPORT(dev) ((dev)->transport) -#define HBA_TRANSPORT(hba) ((hba)->transport) - -extern struct se_global *se_global; - -#endif /* TARGET_CORE_TRANSPORT_H */ |