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128 lines
4 KiB
C
128 lines
4 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2012 The FreeBSD Foundation
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*
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* This software was developed by Edward Tomasz Napierala under sponsorship
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* from the FreeBSD Foundation.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef CTL_FRONTEND_ISCSI_H
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#define CTL_FRONTEND_ISCSI_H
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#define CFISCSI_TARGET_STATE_INVALID 0
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#define CFISCSI_TARGET_STATE_ACTIVE 1
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#define CFISCSI_TARGET_STATE_DYING 2
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struct cfiscsi_target {
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TAILQ_ENTRY(cfiscsi_target) ct_next;
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struct cfiscsi_softc *ct_softc;
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volatile u_int ct_refcount;
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char ct_name[CTL_ISCSI_NAME_LEN];
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char ct_alias[CTL_ISCSI_ALIAS_LEN];
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uint16_t ct_tag;
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int ct_state;
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int ct_online;
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int ct_target_id;
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struct ctl_port ct_port;
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};
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struct cfiscsi_data_wait {
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TAILQ_ENTRY(cfiscsi_data_wait) cdw_next;
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union ctl_io *cdw_ctl_io;
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uint32_t cdw_target_transfer_tag;
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uint32_t cdw_initiator_task_tag;
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int cdw_sg_index;
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char *cdw_sg_addr;
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size_t cdw_sg_len;
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uint32_t cdw_r2t_end;
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uint32_t cdw_datasn;
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void *cdw_icl_prv;
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};
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#define CFISCSI_SESSION_STATE_INVALID 0
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#define CFISCSI_SESSION_STATE_BHS 1
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#define CFISCSI_SESSION_STATE_AHS 2
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#define CFISCSI_SESSION_STATE_HEADER_DIGEST 3
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#define CFISCSI_SESSION_STATE_DATA 4
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#define CFISCSI_SESSION_STATE_DATA_DIGEST 5
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struct cfiscsi_session {
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TAILQ_ENTRY(cfiscsi_session) cs_next;
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struct mtx cs_lock;
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struct icl_conn *cs_conn;
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uint32_t cs_cmdsn;
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uint32_t cs_statsn;
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uint32_t cs_target_transfer_tag;
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volatile u_int cs_outstanding_ctl_pdus;
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TAILQ_HEAD(, cfiscsi_data_wait) cs_waiting_for_data_out;
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struct cfiscsi_target *cs_target;
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struct callout cs_callout;
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int cs_timeout;
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struct cv cs_maintenance_cv;
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bool cs_terminating;
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bool cs_terminating_tasks;
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bool cs_handoff_in_progress;
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bool cs_tasks_aborted;
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int cs_max_burst_length;
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int cs_first_burst_length;
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bool cs_immediate_data;
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char cs_initiator_name[CTL_ISCSI_NAME_LEN];
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char cs_initiator_addr[CTL_ISCSI_ADDR_LEN];
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char cs_initiator_alias[CTL_ISCSI_ALIAS_LEN];
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char cs_initiator_isid[6];
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char cs_initiator_id[CTL_ISCSI_NAME_LEN + 5 + 6 + 1];
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unsigned int cs_id;
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int cs_ctl_initid;
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#ifdef ICL_KERNEL_PROXY
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struct sockaddr *cs_initiator_sa;
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int cs_portal_id;
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bool cs_login_phase;
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bool cs_waiting_for_ctld;
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struct cv cs_login_cv;
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struct icl_pdu *cs_login_pdu;
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#endif
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};
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#ifdef ICL_KERNEL_PROXY
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struct icl_listen;
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#endif
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struct cfiscsi_softc {
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struct mtx lock;
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char port_name[32];
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int online;
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int last_target_id;
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unsigned int last_session_id;
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TAILQ_HEAD(, cfiscsi_target) targets;
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TAILQ_HEAD(, cfiscsi_session) sessions;
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struct cv sessions_cv;
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#ifdef ICL_KERNEL_PROXY
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struct icl_listen *listener;
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struct cv accept_cv;
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#endif
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};
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#endif /* !CTL_FRONTEND_ISCSI_H */
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