2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2012 The FreeBSD Foundation
7 * This software was developed by Edward Tomasz Napierala under sponsorship
8 * from the FreeBSD Foundation.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
40 #define ISCSI_NAME_LEN 224 /* 223 bytes, by RFC 3720, + '\0' */
41 #define ISCSI_ADDR_LEN 47 /* INET6_ADDRSTRLEN + '\0' */
42 #define ISCSI_SECRET_LEN 17 /* 16 + '\0' */
44 struct iscsi_outstanding {
45 TAILQ_ENTRY(iscsi_outstanding) io_next;
48 uint32_t io_initiator_task_tag;
53 struct iscsi_session {
54 TAILQ_ENTRY(iscsi_session) is_next;
56 struct icl_conn *is_conn;
63 uint32_t is_initiator_task_tag;
67 int is_max_burst_length;
68 int is_first_burst_length;
71 bool is_immediate_data;
72 int is_max_recv_data_segment_length;
73 int is_max_send_data_segment_length;
74 char is_target_alias[ISCSI_ALIAS_LEN];
76 TAILQ_HEAD(, iscsi_outstanding) is_outstanding;
77 STAILQ_HEAD(, icl_pdu) is_postponed;
79 struct callout is_callout;
80 unsigned int is_timeout;
83 * XXX: This could be rewritten using a single variable,
84 * but somehow it results in uglier code.
87 * We're waiting for iscsid(8); after iscsid_timeout
88 * expires, kernel will wake up an iscsid(8) to handle
91 bool is_waiting_for_iscsid;
94 * Some iscsid(8) instance is handling the session;
95 * after login_timeout expires, kernel will wake up
96 * another iscsid(8) to handle the session.
101 * We're in the process of removing the iSCSI session.
106 * We're waiting for the maintenance thread to do some
107 * reconnection tasks.
109 bool is_reconnecting;
113 struct cam_devq *is_devq;
114 struct cam_sim *is_sim;
115 struct cam_path *is_path;
116 struct cv is_maintenance_cv;
117 struct iscsi_softc *is_softc;
119 struct iscsi_session_conf is_conf;
122 char is_reason[ISCSI_REASON_LEN];
124 #ifdef ICL_KERNEL_PROXY
125 struct cv is_login_cv;
126 struct icl_pdu *is_login_pdu;
133 struct cdev *sc_cdev;
134 TAILQ_HEAD(, iscsi_session) sc_sessions;
136 unsigned int sc_last_session_id;
137 eventhandler_tag sc_shutdown_pre_eh;
138 eventhandler_tag sc_shutdown_post_eh;
141 #endif /* !ISCSI_H */