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Diffstat (limited to '')
| -rw-r--r-- | include/target/iscsi/iscsi_transport.h | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/include/target/iscsi/iscsi_transport.h b/include/target/iscsi/iscsi_transport.h new file mode 100644 index 000000000..91948bc5b --- /dev/null +++ b/include/target/iscsi/iscsi_transport.h @@ -0,0 +1,153 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#include "iscsi_target_core.h" /* struct iscsi_cmd */ + +struct sockaddr_storage; + +struct iscsit_transport { +#define ISCSIT_TRANSPORT_NAME 16 + char name[ISCSIT_TRANSPORT_NAME]; + int transport_type; + bool rdma_shutdown; + int priv_size; + struct module *owner; + struct list_head t_node; + int (*iscsit_setup_np)(struct iscsi_np *, struct 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 *); + int (*iscsit_xmit_pdu)(struct iscsi_conn *, struct iscsi_cmd *, + struct iscsi_datain_req *, const void *, u32); + void (*iscsit_release_cmd)(struct iscsi_conn *, struct iscsi_cmd *); + void (*iscsit_get_rx_pdu)(struct iscsi_conn *); + int (*iscsit_validate_params)(struct iscsi_conn *); + void (*iscsit_get_r2t_ttt)(struct iscsi_conn *, struct iscsi_cmd *, + struct iscsi_r2t *); + 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 *, void *, + struct iscsi_cmd *, u32, bool *); +extern int +iscsit_check_dataout_hdr(struct iscsi_conn *conn, void *buf, + struct iscsi_cmd **out_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 *); +extern int iscsit_queue_rsp(struct iscsi_conn *, struct iscsi_cmd *); +extern void iscsit_aborted_task(struct iscsi_conn *, struct iscsi_cmd *); +extern int iscsit_add_reject(struct iscsi_conn *, u8, unsigned char *); +extern int iscsit_reject_cmd(struct iscsi_cmd *, u8, unsigned char *); +extern int iscsit_handle_snack(struct iscsi_conn *, unsigned char *); +extern void iscsit_build_datain_pdu(struct iscsi_cmd *, struct iscsi_conn *, + struct iscsi_datain *, + struct iscsi_data_rsp *, bool); +extern int iscsit_build_r2ts_for_cmd(struct iscsi_conn *, struct iscsi_cmd *, + bool); +extern int iscsit_immediate_queue(struct iscsi_conn *, struct iscsi_cmd *, int); +extern int iscsit_response_queue(struct iscsi_conn *, struct iscsi_cmd *, int); +/* + * 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 *); +extern void iscsit_free_cmd(struct iscsi_cmd *, bool); +extern void iscsit_add_cmd_to_immediate_queue(struct iscsi_cmd *, + struct iscsi_conn *, u8); +extern struct iscsi_cmd * +iscsit_find_cmd_from_itt_or_dump(struct iscsi_conn *conn, + itt_t init_task_tag, u32 length); + +/* + * From iscsi_target_nego.c + */ +extern int iscsi_target_check_login_request(struct iscsi_conn *, + struct iscsi_login *); + +/* + * From iscsi_target_login.c + */ +extern __printf(2, 3) int iscsi_change_param_sprintf( + struct iscsi_conn *, const char *, ...); + +/* + * From iscsi_target_parameters.c + */ +extern struct iscsi_param *iscsi_find_param_from_key( + char *, struct iscsi_param_list *); 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