ctl_frontend_iscsi.h revision 268258
1255570Strasz/*- 2255570Strasz * Copyright (c) 2012 The FreeBSD Foundation 3255570Strasz * All rights reserved. 4255570Strasz * 5255570Strasz * This software was developed by Edward Tomasz Napierala under sponsorship 6255570Strasz * from the FreeBSD Foundation. 7255570Strasz * 8255570Strasz * Redistribution and use in source and binary forms, with or without 9255570Strasz * modification, are permitted provided that the following conditions 10255570Strasz * are met: 11255570Strasz * 1. Redistributions of source code must retain the above copyright 12255570Strasz * notice, this list of conditions and the following disclaimer. 13255570Strasz * 2. Redistributions in binary form must reproduce the above copyright 14255570Strasz * notice, this list of conditions and the following disclaimer in the 15255570Strasz * documentation and/or other materials provided with the distribution. 16255570Strasz * 17255570Strasz * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18255570Strasz * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19255570Strasz * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20255570Strasz * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21255570Strasz * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22255570Strasz * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23255570Strasz * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24255570Strasz * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25255570Strasz * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26255570Strasz * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27255570Strasz * SUCH DAMAGE. 28255570Strasz * 29255570Strasz * $FreeBSD: stable/10/sys/cam/ctl/ctl_frontend_iscsi.h 268258 2014-07-04 16:07:57Z mav $ 30255570Strasz */ 31255570Strasz 32255570Strasz#ifndef CTL_FRONTEND_ISCSI_H 33255570Strasz#define CTL_FRONTEND_ISCSI_H 34255570Strasz 35255570Straszstruct cfiscsi_target { 36255570Strasz TAILQ_ENTRY(cfiscsi_target) ct_next; 37255570Strasz int ct_luns[CTL_MAX_LUNS]; 38255570Strasz struct cfiscsi_softc *ct_softc; 39255570Strasz volatile u_int ct_refcount; 40255570Strasz char ct_name[CTL_ISCSI_NAME_LEN]; 41255570Strasz char ct_alias[CTL_ISCSI_ALIAS_LEN]; 42255570Strasz}; 43255570Strasz 44255570Straszstruct cfiscsi_data_wait { 45255570Strasz TAILQ_ENTRY(cfiscsi_data_wait) cdw_next; 46255570Strasz union ctl_io *cdw_ctl_io; 47255570Strasz uint32_t cdw_target_transfer_tag; 48255570Strasz uint32_t cdw_initiator_task_tag; 49255570Strasz int cdw_sg_index; 50255570Strasz char *cdw_sg_addr; 51255570Strasz size_t cdw_sg_len; 52255570Strasz}; 53255570Strasz 54255570Strasz#define CFISCSI_SESSION_STATE_INVALID 0 55255570Strasz#define CFISCSI_SESSION_STATE_BHS 1 56255570Strasz#define CFISCSI_SESSION_STATE_AHS 2 57255570Strasz#define CFISCSI_SESSION_STATE_HEADER_DIGEST 3 58255570Strasz#define CFISCSI_SESSION_STATE_DATA 4 59255570Strasz#define CFISCSI_SESSION_STATE_DATA_DIGEST 5 60255570Strasz 61255570Straszstruct cfiscsi_session { 62255570Strasz TAILQ_ENTRY(cfiscsi_session) cs_next; 63255570Strasz struct mtx cs_lock; 64255570Strasz struct icl_conn *cs_conn; 65255570Strasz uint32_t cs_cmdsn; 66255570Strasz uint32_t cs_statsn; 67255570Strasz uint32_t cs_target_transfer_tag; 68255570Strasz volatile u_int cs_outstanding_ctl_pdus; 69255570Strasz TAILQ_HEAD(, cfiscsi_data_wait) cs_waiting_for_data_out; 70255570Strasz struct cfiscsi_target *cs_target; 71255570Strasz struct callout cs_callout; 72255570Strasz int cs_timeout; 73255570Strasz int cs_portal_group_tag; 74255570Strasz struct cv cs_maintenance_cv; 75268258Smav bool cs_terminating; 76255570Strasz size_t cs_max_data_segment_length; 77255570Strasz size_t cs_max_burst_length; 78255570Strasz bool cs_immediate_data; 79255570Strasz char cs_initiator_name[CTL_ISCSI_NAME_LEN]; 80255570Strasz char cs_initiator_addr[CTL_ISCSI_ADDR_LEN]; 81255570Strasz char cs_initiator_alias[CTL_ISCSI_ALIAS_LEN]; 82255570Strasz unsigned int cs_id; 83255570Strasz int cs_ctl_initid; 84255570Strasz#ifdef ICL_KERNEL_PROXY 85265513Strasz struct sockaddr *cs_initiator_sa; 86265509Strasz int cs_portal_id; 87255570Strasz bool cs_login_phase; 88255570Strasz bool cs_waiting_for_ctld; 89255570Strasz struct cv cs_login_cv; 90255570Strasz struct icl_pdu *cs_login_pdu; 91255570Strasz#endif 92255570Strasz}; 93255570Strasz 94255570Strasz#ifdef ICL_KERNEL_PROXY 95255570Straszstruct icl_listen; 96255570Strasz#endif 97255570Strasz 98255570Straszstruct cfiscsi_softc { 99255570Strasz struct ctl_frontend fe; 100255570Strasz struct mtx lock; 101255570Strasz char port_name[32]; 102255570Strasz int online; 103255570Strasz unsigned int last_session_id; 104255570Strasz TAILQ_HEAD(, cfiscsi_target) targets; 105255570Strasz TAILQ_HEAD(, cfiscsi_session) sessions; 106255570Strasz char ctl_initids[CTL_MAX_INIT_PER_PORT]; 107255570Strasz int max_initiators; 108255570Strasz#ifdef ICL_KERNEL_PROXY 109255570Strasz struct icl_listen *listener; 110255570Strasz struct cv accept_cv; 111255570Strasz#endif 112255570Strasz}; 113255570Strasz 114255570Strasz#endif /* !CTL_FRONTEND_ISCSI_H */ 115