1 /*- 2 * Copyright (c) 2012 The FreeBSD Foundation 3 * All rights reserved. 4 * 5 * This software was developed by Edward Tomasz Napierala under sponsorship 6 * from the FreeBSD Foundation. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 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. 16 * 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 27 * SUCH DAMAGE. 28 * 29 * $FreeBSD$ 30 */ 31 32 #ifndef CTL_FRONTEND_ISCSI_H 33 #define CTL_FRONTEND_ISCSI_H 34 35 #define CFISCSI_TARGET_STATE_INVALID 0 36 #define CFISCSI_TARGET_STATE_ACTIVE 1 37 #define CFISCSI_TARGET_STATE_DYING 2 38 39 struct cfiscsi_target { 40 TAILQ_ENTRY(cfiscsi_target) ct_next; 41 uint32_t ct_luns[CTL_MAX_LUNS]; 42 struct cfiscsi_softc *ct_softc; 43 volatile u_int ct_refcount; 44 char ct_name[CTL_ISCSI_NAME_LEN]; 45 char ct_alias[CTL_ISCSI_ALIAS_LEN]; 46 int ct_state; 47 int ct_online; 48 int ct_target_id; 49 struct ctl_port ct_port; 50 }; 51 52 struct cfiscsi_data_wait { 53 TAILQ_ENTRY(cfiscsi_data_wait) cdw_next; 54 union ctl_io *cdw_ctl_io; 55 uint32_t cdw_target_transfer_tag; 56 uint32_t cdw_initiator_task_tag; 57 int cdw_sg_index; 58 char *cdw_sg_addr; 59 size_t cdw_sg_len; 60 uint32_t cdw_r2t_end; 61 }; 62 63 #define CFISCSI_SESSION_STATE_INVALID 0 64 #define CFISCSI_SESSION_STATE_BHS 1 65 #define CFISCSI_SESSION_STATE_AHS 2 66 #define CFISCSI_SESSION_STATE_HEADER_DIGEST 3 67 #define CFISCSI_SESSION_STATE_DATA 4 68 #define CFISCSI_SESSION_STATE_DATA_DIGEST 5 69 70 struct cfiscsi_session { 71 TAILQ_ENTRY(cfiscsi_session) cs_next; 72 struct mtx cs_lock; 73 struct icl_conn *cs_conn; 74 uint32_t cs_cmdsn; 75 uint32_t cs_statsn; 76 uint32_t cs_target_transfer_tag; 77 volatile u_int cs_outstanding_ctl_pdus; 78 TAILQ_HEAD(, cfiscsi_data_wait) cs_waiting_for_data_out; 79 struct cfiscsi_target *cs_target; 80 struct callout cs_callout; 81 int cs_timeout; 82 int cs_portal_group_tag; 83 struct cv cs_maintenance_cv; 84 bool cs_terminating; 85 bool cs_tasks_aborted; 86 size_t cs_max_data_segment_length; 87 size_t cs_max_burst_length; 88 bool cs_immediate_data; 89 char cs_initiator_name[CTL_ISCSI_NAME_LEN]; 90 char cs_initiator_addr[CTL_ISCSI_ADDR_LEN]; 91 char cs_initiator_alias[CTL_ISCSI_ALIAS_LEN]; 92 char cs_initiator_isid[6]; 93 char cs_initiator_id[CTL_ISCSI_NAME_LEN + 5 + 6 + 1]; 94 unsigned int cs_id; 95 int cs_ctl_initid; 96 #ifdef ICL_KERNEL_PROXY 97 struct sockaddr *cs_initiator_sa; 98 int cs_portal_id; 99 bool cs_login_phase; 100 bool cs_waiting_for_ctld; 101 struct cv cs_login_cv; 102 struct icl_pdu *cs_login_pdu; 103 #endif 104 }; 105 106 #ifdef ICL_KERNEL_PROXY 107 struct icl_listen; 108 #endif 109 110 struct cfiscsi_softc { 111 struct mtx lock; 112 char port_name[32]; 113 int online; 114 int last_target_id; 115 unsigned int last_session_id; 116 TAILQ_HEAD(, cfiscsi_target) targets; 117 TAILQ_HEAD(, cfiscsi_session) sessions; 118 struct cv sessions_cv; 119 #ifdef ICL_KERNEL_PROXY 120 struct icl_listen *listener; 121 struct cv accept_cv; 122 #endif 123 }; 124 125 #endif /* !CTL_FRONTEND_ISCSI_H */ 126