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 struct ctl_port ct_port; 49 }; 50 51 struct cfiscsi_data_wait { 52 TAILQ_ENTRY(cfiscsi_data_wait) cdw_next; 53 union ctl_io *cdw_ctl_io; 54 uint32_t cdw_target_transfer_tag; 55 uint32_t cdw_initiator_task_tag; 56 int cdw_sg_index; 57 char *cdw_sg_addr; 58 size_t cdw_sg_len; 59 uint32_t cdw_r2t_end; 60 }; 61 62 #define CFISCSI_SESSION_STATE_INVALID 0 63 #define CFISCSI_SESSION_STATE_BHS 1 64 #define CFISCSI_SESSION_STATE_AHS 2 65 #define CFISCSI_SESSION_STATE_HEADER_DIGEST 3 66 #define CFISCSI_SESSION_STATE_DATA 4 67 #define CFISCSI_SESSION_STATE_DATA_DIGEST 5 68 69 struct cfiscsi_session { 70 TAILQ_ENTRY(cfiscsi_session) cs_next; 71 struct mtx cs_lock; 72 struct icl_conn *cs_conn; 73 uint32_t cs_cmdsn; 74 uint32_t cs_statsn; 75 uint32_t cs_target_transfer_tag; 76 volatile u_int cs_outstanding_ctl_pdus; 77 TAILQ_HEAD(, cfiscsi_data_wait) cs_waiting_for_data_out; 78 struct cfiscsi_target *cs_target; 79 struct callout cs_callout; 80 int cs_timeout; 81 int cs_portal_group_tag; 82 struct cv cs_maintenance_cv; 83 bool cs_terminating; 84 bool cs_tasks_aborted; 85 size_t cs_max_data_segment_length; 86 size_t cs_max_burst_length; 87 bool cs_immediate_data; 88 char cs_initiator_name[CTL_ISCSI_NAME_LEN]; 89 char cs_initiator_addr[CTL_ISCSI_ADDR_LEN]; 90 char cs_initiator_alias[CTL_ISCSI_ALIAS_LEN]; 91 char cs_initiator_isid[6]; 92 char cs_initiator_id[CTL_ISCSI_NAME_LEN + 5 + 6 + 1]; 93 unsigned int cs_id; 94 int cs_ctl_initid; 95 #ifdef ICL_KERNEL_PROXY 96 struct sockaddr *cs_initiator_sa; 97 int cs_portal_id; 98 bool cs_login_phase; 99 bool cs_waiting_for_ctld; 100 struct cv cs_login_cv; 101 struct icl_pdu *cs_login_pdu; 102 #endif 103 }; 104 105 #ifdef ICL_KERNEL_PROXY 106 struct icl_listen; 107 #endif 108 109 struct cfiscsi_softc { 110 struct mtx lock; 111 char port_name[32]; 112 int online; 113 unsigned int last_session_id; 114 TAILQ_HEAD(, cfiscsi_target) targets; 115 TAILQ_HEAD(, cfiscsi_session) sessions; 116 #ifdef ICL_KERNEL_PROXY 117 struct icl_listen *listener; 118 struct cv accept_cv; 119 #endif 120 }; 121 122 #endif /* !CTL_FRONTEND_ISCSI_H */ 123