2019-05-27 14:55:05 +08:00
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/* SPDX-License-Identifier: GPL-2.0-or-later */
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2005-08-05 10:31:00 +08:00
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/*
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2005-04-17 06:20:36 +08:00
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* iSCSI transport class definitions
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*
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* Copyright (C) IBM Corporation, 2004
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2006-04-07 10:13:41 +08:00
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* Copyright (C) Mike Christie, 2004 - 2006
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2005-08-05 10:31:00 +08:00
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* Copyright (C) Dmitry Yusupov, 2004 - 2005
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* Copyright (C) Alex Aizman, 2004 - 2005
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2005-04-17 06:20:36 +08:00
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*/
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#ifndef SCSI_TRANSPORT_ISCSI_H
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#define SCSI_TRANSPORT_ISCSI_H
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2006-01-14 08:05:50 +08:00
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#include <linux/device.h>
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2007-10-03 05:38:05 +08:00
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#include <linux/list.h>
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#include <linux/mutex.h>
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2005-08-05 10:31:00 +08:00
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#include <scsi/iscsi_if.h>
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2005-04-17 06:20:36 +08:00
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2006-01-14 08:05:50 +08:00
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struct scsi_transport_template;
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2006-04-07 10:13:41 +08:00
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struct iscsi_transport;
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2008-05-22 04:54:13 +08:00
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struct iscsi_endpoint;
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2006-01-14 08:05:50 +08:00
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struct Scsi_Host;
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2010-07-22 19:29:49 +08:00
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struct scsi_cmnd;
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2006-01-14 08:05:50 +08:00
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struct iscsi_cls_conn;
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2006-04-07 10:13:41 +08:00
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struct iscsi_conn;
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2008-05-22 04:54:09 +08:00
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struct iscsi_task;
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2006-06-29 01:00:23 +08:00
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struct sockaddr;
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2011-07-26 02:48:40 +08:00
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struct iscsi_iface;
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2011-07-26 02:48:50 +08:00
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struct bsg_job;
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2013-03-22 19:41:29 +08:00
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struct iscsi_bus_flash_session;
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struct iscsi_bus_flash_conn;
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2006-01-14 08:05:50 +08:00
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2005-08-05 10:31:00 +08:00
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/**
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* struct iscsi_transport - iSCSI Transport template
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*
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* @name: transport name
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* @caps: iSCSI Data-Path capabilities
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* @create_session: create new iSCSI session object
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* @destroy_session: destroy existing iSCSI session object
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* @create_conn: create new iSCSI connection
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* @bind_conn: associate this connection with existing iSCSI session
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* and specified transport descriptor
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* @destroy_conn: destroy inactive iSCSI connection
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2006-06-29 01:00:23 +08:00
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* @set_param: set iSCSI parameter. Return 0 on success, -ENODATA
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* when param is not supported, and a -Exx value on other
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* error.
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* @get_param get iSCSI parameter. Must return number of bytes
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* copied to buffer on success, -ENODATA when param
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* is not supported, and a -Exx value on other error
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2005-08-05 10:31:00 +08:00
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* @start_conn: set connection to be operational
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* @stop_conn: suspend/recover/terminate connection
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* @send_pdu: send iSCSI PDU, Login, Logout, NOP-Out, Reject, Text.
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2006-04-07 10:13:41 +08:00
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* @session_recovery_timedout: notify LLD a block during recovery timed out
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2008-05-22 04:54:06 +08:00
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* @init_task: Initialize a iscsi_task and any internal structs.
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* When offloading the data path, this is called from
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* queuecommand with the session lock, or from the
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* iscsi_conn_send_pdu context with the session lock.
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* When not offloading the data path, this is called
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* from the scsi work queue without the session lock.
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* @xmit_task Requests LLD to transfer cmd task. Returns 0 or the
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2020-07-19 08:32:32 +08:00
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* number of bytes transferred on success, and -Exyz
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2008-05-22 04:54:06 +08:00
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* value on error. When offloading the data path, this
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* is called from queuecommand with the session lock, or
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* from the iscsi_conn_send_pdu context with the session
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* lock. When not offloading the data path, this is called
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* from the scsi work queue without the session lock.
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* @cleanup_task: requests LLD to fail task. Called with session lock
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* and after the connection has been suspended and
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* terminated during recovery. If called
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2006-04-07 10:13:41 +08:00
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* from abort task then connection is not suspended
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* or terminated but sk_callback_lock is held
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2005-08-05 10:31:00 +08:00
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*
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* Template API provided by iSCSI Transport
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*/
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struct iscsi_transport {
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struct module *owner;
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char *name;
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unsigned int caps;
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2011-07-26 02:48:40 +08:00
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2008-05-22 04:54:13 +08:00
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struct iscsi_cls_session *(*create_session) (struct iscsi_endpoint *ep,
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2008-05-22 04:53:59 +08:00
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uint16_t cmds_max, uint16_t qdepth,
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2009-03-06 04:46:06 +08:00
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uint32_t sn);
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2006-02-02 11:06:49 +08:00
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void (*destroy_session) (struct iscsi_cls_session *session);
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struct iscsi_cls_conn *(*create_conn) (struct iscsi_cls_session *sess,
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2006-01-14 08:05:50 +08:00
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uint32_t cid);
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2021-05-26 02:17:55 +08:00
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void (*unbind_conn) (struct iscsi_cls_conn *conn, bool is_active);
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2006-02-02 11:06:49 +08:00
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int (*bind_conn) (struct iscsi_cls_session *session,
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struct iscsi_cls_conn *cls_conn,
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2006-05-03 08:46:36 +08:00
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uint64_t transport_eph, int is_leading);
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2006-02-02 11:06:49 +08:00
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int (*start_conn) (struct iscsi_cls_conn *conn);
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void (*stop_conn) (struct iscsi_cls_conn *conn, int flag);
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2006-01-14 08:05:50 +08:00
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void (*destroy_conn) (struct iscsi_cls_conn *conn);
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2006-02-02 11:06:49 +08:00
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int (*set_param) (struct iscsi_cls_conn *conn, enum iscsi_param param,
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2006-06-29 01:00:23 +08:00
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char *buf, int buflen);
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2011-02-17 05:04:37 +08:00
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int (*get_ep_param) (struct iscsi_endpoint *ep, enum iscsi_param param,
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char *buf);
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2006-02-02 11:06:49 +08:00
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int (*get_conn_param) (struct iscsi_cls_conn *conn,
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2006-06-29 01:00:23 +08:00
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enum iscsi_param param, char *buf);
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2006-02-02 11:06:49 +08:00
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int (*get_session_param) (struct iscsi_cls_session *session,
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2006-06-29 01:00:23 +08:00
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enum iscsi_param param, char *buf);
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2007-05-31 01:57:08 +08:00
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int (*get_host_param) (struct Scsi_Host *shost,
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enum iscsi_host_param param, char *buf);
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2007-05-31 01:57:11 +08:00
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int (*set_host_param) (struct Scsi_Host *shost,
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enum iscsi_host_param param, char *buf,
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int buflen);
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2006-02-02 11:06:49 +08:00
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int (*send_pdu) (struct iscsi_cls_conn *conn, struct iscsi_hdr *hdr,
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2005-08-05 10:31:00 +08:00
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char *data, uint32_t data_size);
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2006-02-02 11:06:49 +08:00
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void (*get_stats) (struct iscsi_cls_conn *conn,
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struct iscsi_stats *stats);
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2008-12-02 14:32:05 +08:00
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2008-05-22 04:54:09 +08:00
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int (*init_task) (struct iscsi_task *task);
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int (*xmit_task) (struct iscsi_task *task);
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2008-12-02 14:32:05 +08:00
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void (*cleanup_task) (struct iscsi_task *task);
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2008-12-02 14:32:14 +08:00
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int (*alloc_pdu) (struct iscsi_task *task, uint8_t opcode);
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2008-12-02 14:32:05 +08:00
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int (*xmit_pdu) (struct iscsi_task *task);
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int (*init_pdu) (struct iscsi_task *task, unsigned int offset,
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unsigned int count);
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2008-12-02 14:32:13 +08:00
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void (*parse_pdu_itt) (struct iscsi_conn *conn, itt_t itt,
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int *index, int *age);
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2006-04-07 10:13:39 +08:00
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void (*session_recovery_timedout) (struct iscsi_cls_session *session);
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2009-05-14 06:57:38 +08:00
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struct iscsi_endpoint *(*ep_connect) (struct Scsi_Host *shost,
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struct sockaddr *dst_addr,
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2008-05-22 04:54:13 +08:00
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int non_blocking);
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int (*ep_poll) (struct iscsi_endpoint *ep, int timeout_ms);
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void (*ep_disconnect) (struct iscsi_endpoint *ep);
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2007-05-31 01:57:10 +08:00
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int (*tgt_dscvr) (struct Scsi_Host *shost, enum iscsi_tgt_dscvr type,
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2006-06-29 01:00:22 +08:00
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uint32_t enable, struct sockaddr *dst_addr);
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2009-06-09 09:14:41 +08:00
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int (*set_path) (struct Scsi_Host *shost, struct iscsi_path *params);
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2011-10-06 16:56:59 +08:00
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int (*set_iface_param) (struct Scsi_Host *shost, void *data,
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uint32_t len);
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2011-07-26 02:48:40 +08:00
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int (*get_iface_param) (struct iscsi_iface *iface,
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enum iscsi_param_type param_type,
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int param, char *buf);
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2011-07-24 11:11:19 +08:00
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umode_t (*attr_is_visible)(int param_type, int param);
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2011-07-26 02:48:50 +08:00
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int (*bsg_request)(struct bsg_job *job);
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2012-02-13 21:00:48 +08:00
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int (*send_ping) (struct Scsi_Host *shost, uint32_t iface_num,
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uint32_t iface_type, uint32_t payload_size,
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uint32_t pid, struct sockaddr *dst_addr);
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2012-02-27 19:08:51 +08:00
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int (*get_chap) (struct Scsi_Host *shost, uint16_t chap_tbl_idx,
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uint32_t *num_entries, char *buf);
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int (*delete_chap) (struct Scsi_Host *shost, uint16_t chap_tbl_idx);
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2013-09-17 19:54:48 +08:00
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int (*set_chap) (struct Scsi_Host *shost, void *data, int len);
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2013-03-22 19:41:29 +08:00
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int (*get_flashnode_param) (struct iscsi_bus_flash_session *fnode_sess,
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int param, char *buf);
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int (*set_flashnode_param) (struct iscsi_bus_flash_session *fnode_sess,
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struct iscsi_bus_flash_conn *fnode_conn,
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void *data, int len);
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int (*new_flashnode) (struct Scsi_Host *shost, const char *buf,
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int len);
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int (*del_flashnode) (struct iscsi_bus_flash_session *fnode_sess);
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int (*login_flashnode) (struct iscsi_bus_flash_session *fnode_sess,
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struct iscsi_bus_flash_conn *fnode_conn);
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int (*logout_flashnode) (struct iscsi_bus_flash_session *fnode_sess,
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struct iscsi_bus_flash_conn *fnode_conn);
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int (*logout_flashnode_sid) (struct iscsi_cls_session *cls_sess);
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2013-11-22 18:28:18 +08:00
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int (*get_host_stats) (struct Scsi_Host *shost, char *buf, int len);
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2014-03-06 01:43:49 +08:00
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u8 (*check_protection)(struct iscsi_task *task, sector_t *sector);
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2005-04-17 06:20:36 +08:00
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};
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/*
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2005-08-05 10:31:00 +08:00
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* transport registration upcalls
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2005-04-17 06:20:36 +08:00
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*/
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2006-01-14 08:05:50 +08:00
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extern struct scsi_transport_template *iscsi_register_transport(struct iscsi_transport *tt);
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2022-06-16 16:02:10 +08:00
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extern void iscsi_unregister_transport(struct iscsi_transport *tt);
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2005-04-17 06:20:36 +08:00
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/*
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2005-08-05 10:31:00 +08:00
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* control plane upcalls
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2005-04-17 06:20:36 +08:00
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*/
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2008-09-25 00:46:10 +08:00
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extern void iscsi_conn_error_event(struct iscsi_cls_conn *conn,
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enum iscsi_err error);
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2011-07-26 02:48:52 +08:00
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extern void iscsi_conn_login_event(struct iscsi_cls_conn *conn,
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enum iscsi_conn_state state);
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2006-02-02 11:06:49 +08:00
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extern int iscsi_recv_pdu(struct iscsi_cls_conn *conn, struct iscsi_hdr *hdr,
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2005-08-05 10:31:00 +08:00
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char *data, uint32_t data_size);
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2005-04-17 06:20:36 +08:00
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2009-06-09 09:14:41 +08:00
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extern int iscsi_offload_mesg(struct Scsi_Host *shost,
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struct iscsi_transport *transport, uint32_t type,
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char *data, uint16_t data_size);
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2012-02-13 21:00:46 +08:00
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extern void iscsi_post_host_event(uint32_t host_no,
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struct iscsi_transport *transport,
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enum iscsi_host_event_code code,
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uint32_t data_size,
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uint8_t *data);
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2012-02-13 21:00:48 +08:00
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extern void iscsi_ping_comp_event(uint32_t host_no,
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struct iscsi_transport *transport,
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uint32_t status, uint32_t pid,
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uint32_t data_size, uint8_t *data);
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2020-03-18 07:34:22 +08:00
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/* iscsi class connection state */
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enum iscsi_connection_state {
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ISCSI_CONN_UP = 0,
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ISCSI_CONN_DOWN,
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ISCSI_CONN_FAILED,
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2021-03-25 17:32:48 +08:00
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ISCSI_CONN_BOUND,
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2020-03-18 07:34:22 +08:00
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};
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2021-05-26 02:18:00 +08:00
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#define ISCSI_CLS_CONN_BIT_CLEANUP 1
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2006-01-14 08:05:50 +08:00
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struct iscsi_cls_conn {
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struct list_head conn_list; /* item in connlist */
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void *dd_data; /* LLD private data */
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struct iscsi_transport *transport;
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2006-04-07 10:13:33 +08:00
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uint32_t cid; /* connection id */
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2021-05-26 02:18:00 +08:00
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/*
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* This protects the conn startup and binding/unbinding of the ep to
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* the conn. Unbinding includes ep_disconnect and stop_conn.
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*/
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2011-02-17 05:04:33 +08:00
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struct mutex ep_mutex;
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struct iscsi_endpoint *ep;
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2006-04-07 10:13:36 +08:00
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2022-04-08 08:13:09 +08:00
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/* Used when accessing flags and queueing work. */
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spinlock_t lock;
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2021-05-26 02:18:00 +08:00
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unsigned long flags;
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struct work_struct cleanup_work;
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2006-01-14 08:05:50 +08:00
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struct device dev; /* sysfs transport/container device */
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2020-03-18 07:34:22 +08:00
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enum iscsi_connection_state state;
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2006-01-14 08:05:50 +08:00
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};
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#define iscsi_dev_to_conn(_dev) \
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container_of(_dev, struct iscsi_cls_conn, dev)
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2011-07-26 02:48:42 +08:00
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#define transport_class_to_conn(_cdev) \
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iscsi_dev_to_conn(_cdev->parent)
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2008-02-01 03:36:43 +08:00
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#define iscsi_conn_to_session(_conn) \
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iscsi_dev_to_session(_conn->dev.parent)
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/* iscsi class session state */
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enum {
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ISCSI_SESSION_LOGGED_IN,
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ISCSI_SESSION_FAILED,
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ISCSI_SESSION_FREE,
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};
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2006-04-07 10:13:41 +08:00
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2022-11-26 09:07:52 +08:00
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enum {
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ISCSI_SESSION_TARGET_UNBOUND,
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ISCSI_SESSION_TARGET_ALLOCATED,
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ISCSI_SESSION_TARGET_SCANNED,
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ISCSI_SESSION_TARGET_UNBINDING,
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ISCSI_SESSION_TARGET_MAX,
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};
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2008-05-22 04:54:12 +08:00
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#define ISCSI_MAX_TARGET -1
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2006-01-14 08:05:50 +08:00
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struct iscsi_cls_session {
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2006-02-02 11:06:49 +08:00
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struct list_head sess_list; /* item in session_list */
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2006-01-14 08:05:50 +08:00
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|
struct iscsi_transport *transport;
|
2008-02-01 03:36:43 +08:00
|
|
|
spinlock_t lock;
|
2008-03-05 03:26:55 +08:00
|
|
|
struct work_struct block_work;
|
|
|
|
struct work_struct unblock_work;
|
2008-02-01 03:36:46 +08:00
|
|
|
struct work_struct scan_work;
|
|
|
|
struct work_struct unbind_work;
|
2020-02-28 03:59:45 +08:00
|
|
|
struct work_struct destroy_work;
|
2006-04-07 10:13:36 +08:00
|
|
|
|
2006-04-07 10:13:39 +08:00
|
|
|
/* recovery fields */
|
|
|
|
int recovery_tmo;
|
2015-06-17 07:07:13 +08:00
|
|
|
bool recovery_tmo_sysfs_override;
|
2006-11-22 22:57:56 +08:00
|
|
|
struct delayed_work recovery_work;
|
2006-04-07 10:13:39 +08:00
|
|
|
|
2022-02-27 07:04:33 +08:00
|
|
|
struct workqueue_struct *workq;
|
|
|
|
|
2008-05-22 04:54:12 +08:00
|
|
|
unsigned int target_id;
|
2011-10-06 16:56:57 +08:00
|
|
|
bool ida_used;
|
2006-04-07 10:13:39 +08:00
|
|
|
|
2011-12-06 06:44:01 +08:00
|
|
|
/*
|
|
|
|
* pid of userspace process that created session or -1 if
|
|
|
|
* created by the kernel.
|
|
|
|
*/
|
|
|
|
pid_t creator;
|
2008-02-01 03:36:43 +08:00
|
|
|
int state;
|
2022-11-26 09:07:52 +08:00
|
|
|
int target_state; /* session target bind state */
|
2006-04-07 10:13:33 +08:00
|
|
|
int sid; /* session id */
|
|
|
|
void *dd_data; /* LLD private data */
|
2006-01-14 08:05:50 +08:00
|
|
|
struct device dev; /* sysfs transport/container device */
|
|
|
|
};
|
|
|
|
|
|
|
|
#define iscsi_dev_to_session(_dev) \
|
|
|
|
container_of(_dev, struct iscsi_cls_session, dev)
|
|
|
|
|
2011-07-26 02:48:43 +08:00
|
|
|
#define transport_class_to_session(_cdev) \
|
|
|
|
iscsi_dev_to_session(_cdev->parent)
|
|
|
|
|
2006-01-14 08:05:50 +08:00
|
|
|
#define iscsi_session_to_shost(_session) \
|
|
|
|
dev_to_shost(_session->dev.parent)
|
|
|
|
|
2006-06-29 01:00:30 +08:00
|
|
|
#define starget_to_session(_stgt) \
|
|
|
|
iscsi_dev_to_session(_stgt->dev.parent)
|
|
|
|
|
2008-05-22 04:53:58 +08:00
|
|
|
struct iscsi_cls_host {
|
2006-04-07 10:13:39 +08:00
|
|
|
struct mutex mutex;
|
2011-07-26 02:48:50 +08:00
|
|
|
struct request_queue *bsg_q;
|
2012-01-19 19:06:55 +08:00
|
|
|
uint32_t port_speed;
|
|
|
|
uint32_t port_state;
|
2006-04-07 10:13:39 +08:00
|
|
|
};
|
|
|
|
|
2011-07-26 02:48:50 +08:00
|
|
|
#define iscsi_job_to_shost(_job) \
|
|
|
|
dev_to_shost(_job->dev)
|
|
|
|
|
2008-05-22 04:54:00 +08:00
|
|
|
extern void iscsi_host_for_each_session(struct Scsi_Host *shost,
|
|
|
|
void (*fn)(struct iscsi_cls_session *));
|
|
|
|
|
2008-05-22 04:54:13 +08:00
|
|
|
struct iscsi_endpoint {
|
|
|
|
void *dd_data; /* LLD private data */
|
|
|
|
struct device dev;
|
2022-04-08 08:13:07 +08:00
|
|
|
int id;
|
2011-02-17 05:04:33 +08:00
|
|
|
struct iscsi_cls_conn *conn;
|
2008-05-22 04:54:13 +08:00
|
|
|
};
|
2008-05-22 04:54:00 +08:00
|
|
|
|
2011-07-26 02:48:40 +08:00
|
|
|
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)
|
|
|
|
|
2013-03-22 19:41:29 +08:00
|
|
|
|
|
|
|
struct iscsi_bus_flash_conn {
|
|
|
|
struct list_head conn_list; /* item in connlist */
|
|
|
|
void *dd_data; /* LLD private data */
|
|
|
|
struct iscsi_transport *transport;
|
|
|
|
struct device dev; /* sysfs transport/container device */
|
|
|
|
/* iscsi connection parameters */
|
|
|
|
uint32_t exp_statsn;
|
|
|
|
uint32_t statsn;
|
|
|
|
unsigned max_recv_dlength; /* initiator_max_recv_dsl*/
|
|
|
|
unsigned max_xmit_dlength; /* target_max_recv_dsl */
|
|
|
|
unsigned max_segment_size;
|
|
|
|
unsigned tcp_xmit_wsf;
|
|
|
|
unsigned tcp_recv_wsf;
|
|
|
|
int hdrdgst_en;
|
|
|
|
int datadgst_en;
|
|
|
|
int port;
|
|
|
|
char *ipaddress;
|
|
|
|
char *link_local_ipv6_addr;
|
|
|
|
char *redirect_ipaddr;
|
|
|
|
uint16_t keepalive_timeout;
|
|
|
|
uint16_t local_port;
|
|
|
|
uint8_t snack_req_en;
|
|
|
|
/* tcp timestamp negotiation status */
|
|
|
|
uint8_t tcp_timestamp_stat;
|
|
|
|
uint8_t tcp_nagle_disable;
|
|
|
|
/* tcp window scale factor */
|
|
|
|
uint8_t tcp_wsf_disable;
|
|
|
|
uint8_t tcp_timer_scale;
|
|
|
|
uint8_t tcp_timestamp_en;
|
|
|
|
uint8_t ipv4_tos;
|
|
|
|
uint8_t ipv6_traffic_class;
|
|
|
|
uint8_t ipv6_flow_label;
|
|
|
|
uint8_t fragment_disable;
|
|
|
|
/* Link local IPv6 address is assigned by firmware or driver */
|
|
|
|
uint8_t is_fw_assigned_ipv6;
|
|
|
|
};
|
|
|
|
|
|
|
|
#define iscsi_dev_to_flash_conn(_dev) \
|
|
|
|
container_of(_dev, struct iscsi_bus_flash_conn, dev)
|
|
|
|
|
|
|
|
#define iscsi_flash_conn_to_flash_session(_conn) \
|
|
|
|
iscsi_dev_to_flash_session(_conn->dev.parent)
|
|
|
|
|
|
|
|
#define ISID_SIZE 6
|
|
|
|
|
|
|
|
struct iscsi_bus_flash_session {
|
|
|
|
struct list_head sess_list; /* item in session_list */
|
|
|
|
struct iscsi_transport *transport;
|
|
|
|
unsigned int target_id;
|
|
|
|
int flash_state; /* persistent or non-persistent */
|
|
|
|
void *dd_data; /* LLD private data */
|
|
|
|
struct device dev; /* sysfs transport/container device */
|
|
|
|
/* iscsi session parameters */
|
|
|
|
unsigned first_burst;
|
|
|
|
unsigned max_burst;
|
|
|
|
unsigned short max_r2t;
|
|
|
|
int default_taskmgmt_timeout;
|
|
|
|
int initial_r2t_en;
|
|
|
|
int imm_data_en;
|
|
|
|
int time2wait;
|
|
|
|
int time2retain;
|
|
|
|
int pdu_inorder_en;
|
|
|
|
int dataseq_inorder_en;
|
|
|
|
int erl;
|
|
|
|
int tpgt;
|
|
|
|
char *username;
|
|
|
|
char *username_in;
|
|
|
|
char *password;
|
|
|
|
char *password_in;
|
|
|
|
char *targetname;
|
|
|
|
char *targetalias;
|
|
|
|
char *portal_type;
|
|
|
|
uint16_t tsid;
|
|
|
|
uint16_t chap_in_idx;
|
|
|
|
uint16_t chap_out_idx;
|
|
|
|
/* index of iSCSI discovery session if the entry is
|
|
|
|
* discovered by iSCSI discovery session
|
|
|
|
*/
|
|
|
|
uint16_t discovery_parent_idx;
|
|
|
|
/* indicates if discovery was done through iSNS discovery service
|
|
|
|
* or through sendTarget */
|
|
|
|
uint16_t discovery_parent_type;
|
|
|
|
/* Firmware auto sendtarget discovery disable */
|
|
|
|
uint8_t auto_snd_tgt_disable;
|
|
|
|
uint8_t discovery_sess;
|
|
|
|
/* indicates if this flashnode entry is enabled or disabled */
|
|
|
|
uint8_t entry_state;
|
|
|
|
uint8_t chap_auth_en;
|
|
|
|
/* enables firmware to auto logout the discovery session on discovery
|
|
|
|
* completion
|
|
|
|
*/
|
|
|
|
uint8_t discovery_logout_en;
|
|
|
|
uint8_t bidi_chap_en;
|
|
|
|
/* makes authentication for discovery session optional */
|
|
|
|
uint8_t discovery_auth_optional;
|
|
|
|
uint8_t isid[ISID_SIZE];
|
|
|
|
uint8_t is_boot_target;
|
|
|
|
};
|
|
|
|
|
|
|
|
#define iscsi_dev_to_flash_session(_dev) \
|
|
|
|
container_of(_dev, struct iscsi_bus_flash_session, dev)
|
|
|
|
|
|
|
|
#define iscsi_flash_session_to_shost(_session) \
|
|
|
|
dev_to_shost(_session->dev.parent)
|
|
|
|
|
2006-01-14 08:05:50 +08:00
|
|
|
/*
|
|
|
|
* session and connection functions that can be used by HW iSCSI LLDs
|
|
|
|
*/
|
2008-02-01 03:36:52 +08:00
|
|
|
#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)
|
|
|
|
|
2008-02-01 03:36:43 +08:00
|
|
|
extern int iscsi_session_chkready(struct iscsi_cls_session *session);
|
2011-07-26 02:48:52 +08:00
|
|
|
extern int iscsi_is_session_online(struct iscsi_cls_session *session);
|
2006-06-29 01:00:30 +08:00
|
|
|
extern struct iscsi_cls_session *iscsi_alloc_session(struct Scsi_Host *shost,
|
2008-05-22 04:54:01 +08:00
|
|
|
struct iscsi_transport *transport, int dd_size);
|
2006-06-29 01:00:31 +08:00
|
|
|
extern int iscsi_add_session(struct iscsi_cls_session *session,
|
|
|
|
unsigned int target_id);
|
2007-12-14 02:43:29 +08:00
|
|
|
extern int iscsi_session_event(struct iscsi_cls_session *session,
|
|
|
|
enum iscsi_uevent_e event);
|
2006-01-14 08:05:50 +08:00
|
|
|
extern struct iscsi_cls_session *iscsi_create_session(struct Scsi_Host *shost,
|
2006-06-29 01:00:31 +08:00
|
|
|
struct iscsi_transport *t,
|
2008-05-22 04:54:01 +08:00
|
|
|
int dd_size,
|
2006-06-29 01:00:31 +08:00
|
|
|
unsigned int target_id);
|
2022-06-17 06:27:36 +08:00
|
|
|
extern void iscsi_force_destroy_session(struct iscsi_cls_session *session);
|
2006-06-29 01:00:30 +08:00
|
|
|
extern void iscsi_remove_session(struct iscsi_cls_session *session);
|
|
|
|
extern void iscsi_free_session(struct iscsi_cls_session *session);
|
2022-03-10 09:57:57 +08:00
|
|
|
extern struct iscsi_cls_conn *iscsi_alloc_conn(struct iscsi_cls_session *sess,
|
|
|
|
int dd_size, uint32_t cid);
|
|
|
|
extern int iscsi_add_conn(struct iscsi_cls_conn *conn);
|
|
|
|
extern void iscsi_remove_conn(struct iscsi_cls_conn *conn);
|
2021-05-26 02:18:03 +08:00
|
|
|
extern void iscsi_put_conn(struct iscsi_cls_conn *conn);
|
|
|
|
extern void iscsi_get_conn(struct iscsi_cls_conn *conn);
|
2006-04-07 10:13:39 +08:00
|
|
|
extern void iscsi_unblock_session(struct iscsi_cls_session *session);
|
|
|
|
extern void iscsi_block_session(struct iscsi_cls_session *session);
|
2008-05-22 04:54:13 +08:00
|
|
|
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);
|
2021-05-26 02:17:59 +08:00
|
|
|
extern void iscsi_put_endpoint(struct iscsi_endpoint *ep);
|
2010-07-22 19:29:49 +08:00
|
|
|
extern int iscsi_block_scsi_eh(struct scsi_cmnd *cmd);
|
2011-07-26 02:48:40 +08:00
|
|
|
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);
|
2012-01-19 19:06:55 +08:00
|
|
|
extern char *iscsi_get_port_speed_name(struct Scsi_Host *shost);
|
|
|
|
extern char *iscsi_get_port_state_name(struct Scsi_Host *shost);
|
2012-02-27 19:08:51 +08:00
|
|
|
extern int iscsi_is_session_dev(const struct device *dev);
|
2006-06-29 01:00:32 +08:00
|
|
|
|
2013-03-22 19:41:29 +08:00
|
|
|
extern char *iscsi_get_discovery_parent_name(int parent_type);
|
|
|
|
extern struct device *
|
|
|
|
iscsi_find_flashnode(struct Scsi_Host *shost, void *data,
|
|
|
|
int (*fn)(struct device *dev, void *data));
|
|
|
|
|
|
|
|
extern struct iscsi_bus_flash_session *
|
|
|
|
iscsi_create_flashnode_sess(struct Scsi_Host *shost, int index,
|
|
|
|
struct iscsi_transport *transport, int dd_size);
|
|
|
|
|
|
|
|
extern struct iscsi_bus_flash_conn *
|
|
|
|
iscsi_create_flashnode_conn(struct Scsi_Host *shost,
|
|
|
|
struct iscsi_bus_flash_session *fnode_sess,
|
|
|
|
struct iscsi_transport *transport, int dd_size);
|
|
|
|
|
|
|
|
extern void
|
|
|
|
iscsi_destroy_flashnode_sess(struct iscsi_bus_flash_session *fnode_sess);
|
|
|
|
|
|
|
|
extern void iscsi_destroy_all_flashnode(struct Scsi_Host *shost);
|
|
|
|
extern int iscsi_flashnode_bus_match(struct device *dev,
|
|
|
|
struct device_driver *drv);
|
|
|
|
extern struct device *
|
|
|
|
iscsi_find_flashnode_sess(struct Scsi_Host *shost, void *data,
|
|
|
|
int (*fn)(struct device *dev, void *data));
|
|
|
|
extern struct device *
|
2013-05-07 01:06:56 +08:00
|
|
|
iscsi_find_flashnode_conn(struct iscsi_bus_flash_session *fnode_sess);
|
|
|
|
|
2013-10-18 21:01:41 +08:00
|
|
|
extern char *
|
|
|
|
iscsi_get_ipaddress_state_name(enum iscsi_ipaddress_state port_state);
|
|
|
|
extern char *iscsi_get_router_state_name(enum iscsi_router_state router_state);
|
2005-04-17 06:20:36 +08:00
|
|
|
#endif
|