diff options
Diffstat (limited to 'ANDROID_3.4.5/include/scsi/scsi_transport_iscsi.h')
| -rw-r--r-- | ANDROID_3.4.5/include/scsi/scsi_transport_iscsi.h | 333 |
1 files changed, 0 insertions, 333 deletions
diff --git a/ANDROID_3.4.5/include/scsi/scsi_transport_iscsi.h b/ANDROID_3.4.5/include/scsi/scsi_transport_iscsi.h deleted file mode 100644 index 53f0b361..00000000 --- a/ANDROID_3.4.5/include/scsi/scsi_transport_iscsi.h +++ /dev/null @@ -1,333 +0,0 @@ -/* - * iSCSI transport class definitions - * - * Copyright (C) IBM Corporation, 2004 - * Copyright (C) Mike Christie, 2004 - 2006 - * Copyright (C) Dmitry Yusupov, 2004 - 2005 - * Copyright (C) Alex Aizman, 2004 - 2005 - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - */ -#ifndef SCSI_TRANSPORT_ISCSI_H -#define SCSI_TRANSPORT_ISCSI_H - -#include <linux/device.h> -#include <linux/list.h> -#include <linux/mutex.h> -#include <scsi/iscsi_if.h> - -struct scsi_transport_template; -struct iscsi_transport; -struct iscsi_endpoint; -struct Scsi_Host; -struct scsi_cmnd; -struct iscsi_cls_conn; -struct iscsi_conn; -struct iscsi_task; -struct sockaddr; -struct iscsi_iface; -struct bsg_job; - -/** - * struct iscsi_transport - iSCSI Transport template - * - * @name: transport name - * @caps: iSCSI Data-Path capabilities - * @create_session: create new iSCSI session object - * @destroy_session: destroy existing iSCSI session object - * @create_conn: create new iSCSI connection - * @bind_conn: associate this connection with existing iSCSI session - * and specified transport descriptor - * @destroy_conn: destroy inactive iSCSI connection - * @set_param: set iSCSI parameter. Return 0 on success, -ENODATA - * when param is not supported, and a -Exx value on other - * error. - * @get_param get iSCSI parameter. Must return number of bytes - * copied to buffer on success, -ENODATA when param - * is not supported, and a -Exx value on other error - * @start_conn: set connection to be operational - * @stop_conn: suspend/recover/terminate connection - * @send_pdu: send iSCSI PDU, Login, Logout, NOP-Out, Reject, Text. - * @session_recovery_timedout: notify LLD a block during recovery timed out - * @init_task: Initialize a iscsi_task and any internal structs. - * When offloading the data path, this is called from - * queuecommand with the session lock, or from the - * iscsi_conn_send_pdu context with the session lock. - * When not offloading the data path, this is called - * from the scsi work queue without the session lock. - * @xmit_task Requests LLD to transfer cmd task. Returns 0 or the - * the number of bytes transferred on success, and -Exyz - * value on error. When offloading the data path, this - * is called from queuecommand with the session lock, or - * from the iscsi_conn_send_pdu context with the session - * lock. When not offloading the data path, this is called - * from the scsi work queue without the session lock. - * @cleanup_task: requests LLD to fail task. Called with session lock - * and after the connection has been suspended and - * terminated during recovery. If called - * from abort task then connection is not suspended - * or terminated but sk_callback_lock is held - * - * Template API provided by iSCSI Transport - */ -struct iscsi_transport { - struct module *owner; - char *name; - unsigned int caps; - - struct iscsi_cls_session *(*create_session) (struct iscsi_endpoint *ep, - uint16_t cmds_max, uint16_t qdepth, - uint32_t sn); - void (*destroy_session) (struct iscsi_cls_session *session); - struct iscsi_cls_conn *(*create_conn) (struct iscsi_cls_session *sess, - uint32_t cid); - int (*bind_conn) (struct iscsi_cls_session *session, - struct iscsi_cls_conn *cls_conn, - uint64_t transport_eph, int is_leading); - int (*start_conn) (struct iscsi_cls_conn *conn); - void (*stop_conn) (struct iscsi_cls_conn *conn, int flag); - void (*destroy_conn) (struct iscsi_cls_conn *conn); - int (*set_param) (struct iscsi_cls_conn *conn, enum iscsi_param param, - char *buf, int buflen); - int (*get_ep_param) (struct iscsi_endpoint *ep, enum iscsi_param param, - char *buf); - int (*get_conn_param) (struct iscsi_cls_conn *conn, - enum iscsi_param param, char *buf); - int (*get_session_param) (struct iscsi_cls_session *session, - enum iscsi_param param, char *buf); - int (*get_host_param) (struct Scsi_Host *shost, - enum iscsi_host_param param, char *buf); - int (*set_host_param) (struct Scsi_Host *shost, - enum iscsi_host_param param, char *buf, - int buflen); - int (*send_pdu) (struct iscsi_cls_conn *conn, struct iscsi_hdr *hdr, - char *data, uint32_t data_size); - void (*get_stats) (struct iscsi_cls_conn *conn, - struct iscsi_stats *stats); - - int (*init_task) (struct iscsi_task *task); - int (*xmit_task) (struct iscsi_task *task); - void (*cleanup_task) (struct iscsi_task *task); - - int (*alloc_pdu) (struct iscsi_task *task, uint8_t opcode); - int (*xmit_pdu) (struct iscsi_task *task); - int (*init_pdu) (struct iscsi_task *task, unsigned int offset, - unsigned int count); - void (*parse_pdu_itt) (struct iscsi_conn *conn, itt_t itt, - int *index, int *age); - - void (*session_recovery_timedout) (struct iscsi_cls_session *session); - struct iscsi_endpoint *(*ep_connect) (struct Scsi_Host *shost, - struct sockaddr *dst_addr, - int non_blocking); - int (*ep_poll) (struct iscsi_endpoint *ep, int timeout_ms); - void (*ep_disconnect) (struct iscsi_endpoint *ep); - int (*tgt_dscvr) (struct Scsi_Host *shost, enum iscsi_tgt_dscvr type, - uint32_t enable, struct sockaddr *dst_addr); - int (*set_path) (struct Scsi_Host *shost, struct iscsi_path *params); - int (*set_iface_param) (struct Scsi_Host *shost, void *data, - uint32_t len); - int (*get_iface_param) (struct iscsi_iface *iface, - enum iscsi_param_type param_type, - int param, char *buf); - umode_t (*attr_is_visible)(int param_type, int param); - int (*bsg_request)(struct bsg_job *job); - int (*send_ping) (struct Scsi_Host *shost, uint32_t iface_num, - uint32_t iface_type, uint32_t payload_size, - uint32_t pid, struct sockaddr *dst_addr); - int (*get_chap) (struct Scsi_Host *shost, uint16_t chap_tbl_idx, - uint32_t *num_entries, char *buf); - int (*delete_chap) (struct Scsi_Host *shost, uint16_t chap_tbl_idx); -}; - -/* - * transport registration upcalls - */ -extern struct scsi_transport_template *iscsi_register_transport(struct iscsi_transport *tt); -extern int iscsi_unregister_transport(struct iscsi_transport *tt); - -/* - * control plane upcalls - */ -extern void iscsi_conn_error_event(struct iscsi_cls_conn *conn, - enum iscsi_err error); -extern void iscsi_conn_login_event(struct iscsi_cls_conn *conn, - enum iscsi_conn_state state); -extern int iscsi_recv_pdu(struct iscsi_cls_conn *conn, struct iscsi_hdr *hdr, - char *data, uint32_t data_size); - -extern int iscsi_offload_mesg(struct Scsi_Host *shost, - struct iscsi_transport *transport, uint32_t type, - char *data, uint16_t data_size); - -extern void iscsi_post_host_event(uint32_t host_no, - struct iscsi_transport *transport, - enum iscsi_host_event_code code, - uint32_t data_size, - uint8_t *data); - -extern void iscsi_ping_comp_event(uint32_t host_no, - struct iscsi_transport *transport, - uint32_t status, uint32_t pid, - uint32_t data_size, uint8_t *data); - -struct iscsi_cls_conn { - struct list_head conn_list; /* item in connlist */ - void *dd_data; /* LLD private data */ - struct iscsi_transport *transport; - uint32_t cid; /* connection id */ - struct mutex ep_mutex; - struct iscsi_endpoint *ep; - - struct device dev; /* sysfs transport/container device */ -}; - -#define iscsi_dev_to_conn(_dev) \ - container_of(_dev, struct iscsi_cls_conn, dev) - -#define transport_class_to_conn(_cdev) \ - iscsi_dev_to_conn(_cdev->parent) - -#define iscsi_conn_to_session(_conn) \ - iscsi_dev_to_session(_conn->dev.parent) - -/* iscsi class session state */ -enum { - ISCSI_SESSION_LOGGED_IN, - ISCSI_SESSION_FAILED, - ISCSI_SESSION_FREE, -}; - -#define ISCSI_MAX_TARGET -1 - -struct iscsi_cls_session { - struct list_head sess_list; /* item in session_list */ - struct iscsi_transport *transport; - spinlock_t lock; - struct work_struct block_work; - struct work_struct unblock_work; - struct work_struct scan_work; - struct work_struct unbind_work; - - /* recovery fields */ - int recovery_tmo; - struct delayed_work recovery_work; - - unsigned int target_id; - bool ida_used; - - /* - * pid of userspace process that created session or -1 if - * created by the kernel. - */ - pid_t creator; - int state; - int sid; /* session id */ - void *dd_data; /* LLD private data */ - struct device dev; /* sysfs transport/container device */ -}; - -#define iscsi_dev_to_session(_dev) \ - container_of(_dev, struct iscsi_cls_session, dev) - -#define transport_class_to_session(_cdev) \ - iscsi_dev_to_session(_cdev->parent) - -#define iscsi_session_to_shost(_session) \ - dev_to_shost(_session->dev.parent) - -#define starget_to_session(_stgt) \ - iscsi_dev_to_session(_stgt->dev.parent) - -struct iscsi_cls_host { - atomic_t nr_scans; - struct mutex mutex; - struct request_queue *bsg_q; - uint32_t port_speed; - uint32_t port_state; -}; - -#define iscsi_job_to_shost(_job) \ - dev_to_shost(_job->dev) - -extern void iscsi_host_for_each_session(struct Scsi_Host *shost, - void (*fn)(struct iscsi_cls_session *)); - -struct iscsi_endpoint { - void *dd_data; /* LLD private data */ - struct device dev; - uint64_t id; - struct iscsi_cls_conn *conn; -}; - -struct iscsi_iface { - struct device dev; - struct iscsi_transport *transport; - uint32_t iface_type; /* IPv4 or IPv6 */ - uint32_t iface_num; /* iface number, 0 - n */ - void *dd_data; /* LLD private data */ -}; - -#define iscsi_dev_to_iface(_dev) \ - container_of(_dev, struct iscsi_iface, dev) - -#define iscsi_iface_to_shost(_iface) \ - dev_to_shost(_iface->dev.parent) - -/* - * session and connection functions that can be used by HW iSCSI LLDs - */ -#define iscsi_cls_session_printk(prefix, _cls_session, fmt, a...) \ - dev_printk(prefix, &(_cls_session)->dev, fmt, ##a) - -#define iscsi_cls_conn_printk(prefix, _cls_conn, fmt, a...) \ - dev_printk(prefix, &(_cls_conn)->dev, fmt, ##a) - -extern int iscsi_session_chkready(struct iscsi_cls_session *session); -extern int iscsi_is_session_online(struct iscsi_cls_session *session); -extern struct iscsi_cls_session *iscsi_alloc_session(struct Scsi_Host *shost, - struct iscsi_transport *transport, int dd_size); -extern int iscsi_add_session(struct iscsi_cls_session *session, - unsigned int target_id); -extern int iscsi_session_event(struct iscsi_cls_session *session, - enum iscsi_uevent_e event); -extern struct iscsi_cls_session *iscsi_create_session(struct Scsi_Host *shost, - struct iscsi_transport *t, - int dd_size, - unsigned int target_id); -extern void iscsi_remove_session(struct iscsi_cls_session *session); -extern void iscsi_free_session(struct iscsi_cls_session *session); -extern int iscsi_destroy_session(struct iscsi_cls_session *session); -extern struct iscsi_cls_conn *iscsi_create_conn(struct iscsi_cls_session *sess, - int dd_size, uint32_t cid); -extern int iscsi_destroy_conn(struct iscsi_cls_conn *conn); -extern void iscsi_unblock_session(struct iscsi_cls_session *session); -extern void iscsi_block_session(struct iscsi_cls_session *session); -extern int iscsi_scan_finished(struct Scsi_Host *shost, unsigned long time); -extern struct iscsi_endpoint *iscsi_create_endpoint(int dd_size); -extern void iscsi_destroy_endpoint(struct iscsi_endpoint *ep); -extern struct iscsi_endpoint *iscsi_lookup_endpoint(u64 handle); -extern int iscsi_block_scsi_eh(struct scsi_cmnd *cmd); -extern struct iscsi_iface *iscsi_create_iface(struct Scsi_Host *shost, - struct iscsi_transport *t, - uint32_t iface_type, - uint32_t iface_num, int dd_size); -extern void iscsi_destroy_iface(struct iscsi_iface *iface); -extern struct iscsi_iface *iscsi_lookup_iface(int handle); -extern char *iscsi_get_port_speed_name(struct Scsi_Host *shost); -extern char *iscsi_get_port_state_name(struct Scsi_Host *shost); -extern int iscsi_is_session_dev(const struct device *dev); - -#endif |