1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2012 The FreeBSD Foundation 5 * All rights reserved. 6 * 7 * This software was developed by Edward Tomasz Napierala under sponsorship 8 * from the FreeBSD Foundation. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 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. 18 * 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 29 * SUCH DAMAGE. 30 * 31 * $FreeBSD$ 32 */ 33 34 #ifndef CTL_FRONTEND_ISCSI_H 35 #define CTL_FRONTEND_ISCSI_H 36 37 #define CFISCSI_TARGET_STATE_INVALID 0 38 #define CFISCSI_TARGET_STATE_ACTIVE 1 39 #define CFISCSI_TARGET_STATE_DYING 2 40 41 struct cfiscsi_target { 42 TAILQ_ENTRY(cfiscsi_target) ct_next; 43 struct cfiscsi_softc *ct_softc; 44 volatile u_int ct_refcount; 45 char ct_name[CTL_ISCSI_NAME_LEN]; 46 char ct_alias[CTL_ISCSI_ALIAS_LEN]; 47 uint16_t ct_tag; 48 int ct_state; 49 int ct_online; 50 int ct_target_id; 51 struct ctl_port ct_port; 52 }; 53 54 struct cfiscsi_data_wait { 55 TAILQ_ENTRY(cfiscsi_data_wait) cdw_next; 56 union ctl_io *cdw_ctl_io; 57 uint32_t cdw_target_transfer_tag; 58 uint32_t cdw_initiator_task_tag; 59 int cdw_sg_index; 60 char *cdw_sg_addr; 61 size_t cdw_sg_len; 62 uint32_t cdw_r2t_end; 63 uint32_t cdw_datasn; 64 void *cdw_icl_prv; 65 }; 66 67 #define CFISCSI_SESSION_STATE_INVALID 0 68 #define CFISCSI_SESSION_STATE_BHS 1 69 #define CFISCSI_SESSION_STATE_AHS 2 70 #define CFISCSI_SESSION_STATE_HEADER_DIGEST 3 71 #define CFISCSI_SESSION_STATE_DATA 4 72 #define CFISCSI_SESSION_STATE_DATA_DIGEST 5 73 74 struct cfiscsi_session { 75 TAILQ_ENTRY(cfiscsi_session) cs_next; 76 struct mtx cs_lock; 77 struct icl_conn *cs_conn; 78 uint32_t cs_cmdsn; 79 uint32_t cs_statsn; 80 uint32_t cs_target_transfer_tag; 81 volatile u_int cs_outstanding_ctl_pdus; 82 TAILQ_HEAD(, cfiscsi_data_wait) cs_waiting_for_data_out; 83 struct cfiscsi_target *cs_target; 84 struct callout cs_callout; 85 int cs_timeout; 86 struct cv cs_maintenance_cv; 87 bool cs_terminating; 88 bool cs_handoff_in_progress; 89 bool cs_tasks_aborted; 90 int cs_max_recv_data_segment_length; 91 int cs_max_send_data_segment_length; 92 int cs_max_burst_length; 93 int cs_first_burst_length; 94 bool cs_immediate_data; 95 char cs_initiator_name[CTL_ISCSI_NAME_LEN]; 96 char cs_initiator_addr[CTL_ISCSI_ADDR_LEN]; 97 char cs_initiator_alias[CTL_ISCSI_ALIAS_LEN]; 98 char cs_initiator_isid[6]; 99 char cs_initiator_id[CTL_ISCSI_NAME_LEN + 5 + 6 + 1]; 100 unsigned int cs_id; 101 int cs_ctl_initid; 102 #ifdef ICL_KERNEL_PROXY 103 struct sockaddr *cs_initiator_sa; 104 int cs_portal_id; 105 bool cs_login_phase; 106 bool cs_waiting_for_ctld; 107 struct cv cs_login_cv; 108 struct icl_pdu *cs_login_pdu; 109 #endif 110 }; 111 112 #ifdef ICL_KERNEL_PROXY 113 struct icl_listen; 114 #endif 115 116 struct cfiscsi_softc { 117 struct mtx lock; 118 char port_name[32]; 119 int online; 120 int last_target_id; 121 unsigned int last_session_id; 122 TAILQ_HEAD(, cfiscsi_target) targets; 123 TAILQ_HEAD(, cfiscsi_session) sessions; 124 struct cv sessions_cv; 125 #ifdef ICL_KERNEL_PROXY 126 struct icl_listen *listener; 127 struct cv accept_cv; 128 #endif 129 }; 130 131 #endif /* !CTL_FRONTEND_ISCSI_H */ 132