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
32 #ifndef CTL_FRONTEND_ISCSI_H
33 #define CTL_FRONTEND_ISCSI_H
35 struct cfiscsi_target {
36 TAILQ_ENTRY(cfiscsi_target) ct_next;
37 int ct_luns[CTL_MAX_LUNS];
38 struct cfiscsi_softc *ct_softc;
39 volatile u_int ct_refcount;
40 char ct_name[CTL_ISCSI_NAME_LEN];
41 char ct_alias[CTL_ISCSI_ALIAS_LEN];
44 struct cfiscsi_data_wait {
45 TAILQ_ENTRY(cfiscsi_data_wait) cdw_next;
46 union ctl_io *cdw_ctl_io;
47 uint32_t cdw_target_transfer_tag;
48 uint32_t cdw_initiator_task_tag;
54 #define CFISCSI_SESSION_STATE_INVALID 0
55 #define CFISCSI_SESSION_STATE_BHS 1
56 #define CFISCSI_SESSION_STATE_AHS 2
57 #define CFISCSI_SESSION_STATE_HEADER_DIGEST 3
58 #define CFISCSI_SESSION_STATE_DATA 4
59 #define CFISCSI_SESSION_STATE_DATA_DIGEST 5
61 struct cfiscsi_session {
62 TAILQ_ENTRY(cfiscsi_session) cs_next;
64 struct icl_conn *cs_conn;
67 uint32_t cs_target_transfer_tag;
68 volatile u_int cs_outstanding_ctl_pdus;
69 TAILQ_HEAD(, cfiscsi_data_wait) cs_waiting_for_data_out;
70 struct cfiscsi_target *cs_target;
71 struct callout cs_callout;
73 int cs_portal_group_tag;
74 struct cv cs_maintenance_cv;
76 size_t cs_max_data_segment_length;
77 size_t cs_max_burst_length;
78 bool cs_immediate_data;
79 char cs_initiator_name[CTL_ISCSI_NAME_LEN];
80 char cs_initiator_addr[CTL_ISCSI_ADDR_LEN];
81 char cs_initiator_alias[CTL_ISCSI_ALIAS_LEN];
84 #ifdef ICL_KERNEL_PROXY
86 bool cs_waiting_for_ctld;
87 struct cv cs_login_cv;
88 struct icl_pdu *cs_login_pdu;
92 #ifdef ICL_KERNEL_PROXY
96 struct cfiscsi_softc {
97 struct ctl_frontend fe;
101 unsigned int last_session_id;
102 TAILQ_HEAD(, cfiscsi_target) targets;
103 TAILQ_HEAD(, cfiscsi_session) sessions;
104 char ctl_initids[CTL_MAX_INIT_PER_PORT];
106 #ifdef ICL_KERNEL_PROXY
107 struct icl_listen *listener;
112 #endif /* !CTL_FRONTEND_ISCSI_H */