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