diff options
Diffstat (limited to 'sys/cam/ctl/ctl_frontend_iscsi.h')
| -rw-r--r-- | sys/cam/ctl/ctl_frontend_iscsi.h | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/sys/cam/ctl/ctl_frontend_iscsi.h b/sys/cam/ctl/ctl_frontend_iscsi.h new file mode 100644 index 0000000..1642944 --- /dev/null +++ b/sys/cam/ctl/ctl_frontend_iscsi.h @@ -0,0 +1,112 @@ +/*- + * Copyright (c) 2012 The FreeBSD Foundation + * All rights reserved. + * + * 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. + * + * $FreeBSD$ + */ + +#ifndef CTL_FRONTEND_ISCSI_H +#define CTL_FRONTEND_ISCSI_H + +struct cfiscsi_target { + TAILQ_ENTRY(cfiscsi_target) ct_next; + int ct_luns[CTL_MAX_LUNS]; + struct cfiscsi_softc *ct_softc; + volatile u_int ct_refcount; + char ct_name[CTL_ISCSI_NAME_LEN]; + char ct_alias[CTL_ISCSI_ALIAS_LEN]; +}; + +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; +}; + +#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; + int cs_portal_group_tag; + struct cv cs_maintenance_cv; + int cs_terminating; + size_t cs_max_data_segment_length; + size_t cs_max_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]; + unsigned int cs_id; + int cs_ctl_initid; +#ifdef ICL_KERNEL_PROXY + 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 ctl_frontend fe; + struct mtx lock; + char port_name[32]; + int online; + unsigned int last_session_id; + TAILQ_HEAD(, cfiscsi_target) targets; + TAILQ_HEAD(, cfiscsi_session) sessions; + char ctl_initids[CTL_MAX_INIT_PER_PORT]; + int max_initiators; +#ifdef ICL_KERNEL_PROXY + struct icl_listen *listener; + struct cv accept_cv; +#endif +}; + +#endif /* !CTL_FRONTEND_ISCSI_H */ |
