blob: 38603fa96375186dfb48a2934d69dd24a660a77f [file] [log] [blame]
#ifndef __ISCSI_TRANSPORT_H__
#define __ISCSI_TRANSPORT_H__
#include <linux/module.h>
#include <linux/list.h>
#ifdef INSIDE_KERNEL_TREE
#include <scst/scst.h>
#else
#include <scst.h>
#endif
/* Forward declarations */
struct iscsi_session;
struct iscsi_kern_conn_info;
struct iscsi_conn;
enum iscsit_transport_type {
ISCSI_TCP,
ISCSI_RDMA,
};
struct iscsit_transport {
struct iscsi_cmnd* (*iscsit_alloc_cmd)(struct iscsi_conn *conn,
struct iscsi_cmnd *parent);
void (*iscsit_preprocessing_done)(struct iscsi_cmnd *cmnd);
void (*iscsit_send_data_rsp)(struct iscsi_cmnd *req, u8 *sense,
int sense_len, u8 status,
int send_status);
int (*iscsit_send_locally)(struct iscsi_cmnd *cmnd,
unsigned int cmd_count);
void (*iscsit_set_sense_data)(struct iscsi_cmnd *rsp,
const u8 *sense_buf, int sense_len);
int (*iscsit_receive_cmnd_data)(struct iscsi_cmnd *cmnd);
void (*iscsit_make_conn_wr_active)(struct iscsi_conn *conn);
void (*iscsit_free_cmd)(struct iscsi_cmnd *cmnd);
void (*iscsit_set_req_data)(struct iscsi_cmnd *req,
struct iscsi_cmnd *rsp);
int (*iscsit_conn_alloc)(struct iscsi_session *session,
struct iscsi_kern_conn_info *info,
struct iscsi_conn **new_conn,
struct iscsit_transport *transport);
int (*iscsit_conn_activate)(struct iscsi_conn *conn);
void (*iscsit_conn_free)(struct iscsi_conn *conn);
void (*iscsit_conn_close)(struct iscsi_conn *conn, int flags);
void (*iscsit_mark_conn_closed)(struct iscsi_conn *conn, int flags);
ssize_t (*iscsit_get_initiator_ip)(struct iscsi_conn *conn, char *buf,
int size);
void (*iscsit_close_all_portals)(void);
unsigned int need_alloc_write_buf:1;
struct module *owner;
const char name[SCST_MAX_NAME];
enum iscsit_transport_type transport_type;
struct list_head transport_list_entry;
} ____cacheline_aligned;
extern int iscsit_reg_transport(struct iscsit_transport *t);
extern void iscsit_unreg_transport(struct iscsit_transport *t);
extern struct iscsit_transport *iscsit_get_transport(enum iscsit_transport_type type);
#endif /* __ISCSI_TRANSPORT_H__ */