2 * Copyright (c) 2012 The FreeBSD Foundation
5 * This software was developed by Edward Tomasz Napierala under sponsorship
6 * from the FreeBSD Foundation.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38 #define ISCSI_NAME_LEN 224 /* 223 bytes, by RFC 3720, + '\0' */
39 #define ISCSI_ADDR_LEN 47 /* INET6_ADDRSTRLEN + '\0' */
40 #define ISCSI_SECRET_LEN 17 /* 16 + '\0' */
42 struct iscsi_outstanding {
43 TAILQ_ENTRY(iscsi_outstanding) io_next;
46 uint32_t io_initiator_task_tag;
50 struct iscsi_session {
51 TAILQ_ENTRY(iscsi_session) is_next;
53 struct icl_conn *is_conn;
60 uint32_t is_initiator_task_tag;
64 size_t is_max_burst_length;
65 size_t is_first_burst_length;
68 bool is_immediate_data;
69 size_t is_max_data_segment_length;
70 char is_target_alias[ISCSI_ALIAS_LEN];
72 TAILQ_HEAD(, iscsi_outstanding) is_outstanding;
73 STAILQ_HEAD(, icl_pdu) is_postponed;
75 struct callout is_callout;
76 unsigned int is_timeout;
79 * XXX: This could be rewritten using a single variable,
80 * but somehow it results in uglier code.
83 * We're waiting for iscsid(8); after iscsid_timeout
84 * expires, kernel will wake up an iscsid(8) to handle
87 bool is_waiting_for_iscsid;
90 * Some iscsid(8) instance is handling the session;
91 * after login_timeout expires, kernel will wake up
92 * another iscsid(8) to handle the session.
97 * We're in the process of removing the iSCSI session.
102 * We're waiting for the maintenance thread to do some
103 * reconnection tasks.
105 bool is_reconnecting;
109 struct cam_devq *is_devq;
110 struct cam_sim *is_sim;
111 struct cam_path *is_path;
112 struct cv is_maintenance_cv;
113 struct iscsi_softc *is_softc;
115 struct iscsi_session_conf is_conf;
118 char is_reason[ISCSI_REASON_LEN];
120 #ifdef ICL_KERNEL_PROXY
121 struct cv is_login_cv;;
122 struct icl_pdu *is_login_pdu;
129 struct cdev *sc_cdev;
130 TAILQ_HEAD(, iscsi_session) sc_sessions;
132 unsigned int sc_last_session_id;
133 eventhandler_tag sc_shutdown_pre_eh;
134 eventhandler_tag sc_shutdown_post_eh;
137 #endif /* !ISCSI_H */