/* SPDX-License-Identifier: GPL-2.0 */
#include <linux/types.h>
#include <linux/device.h>
#include <target/target_core_base.h> /* struct se_cmd */

#define TCM_LOOP_VERSION                "v2.1-rc2"
#define TL_WWN_ADDR_LEN                 256
#define TL_TPGS_PER_HBA                 32

struct tcm_loop_cmd {
        /* State of Linux/SCSI CDB+Data descriptor */
        u32 sc_cmd_state;
        /* Tagged command queueing */
        u32 sc_cmd_tag;
        /* Pointer to the CDB+Data descriptor from Linux/SCSI subsystem */
        struct scsi_cmnd *sc;
        /* The TCM I/O descriptor that is accessed via container_of() */
        struct se_cmd tl_se_cmd;
        struct completion tmr_done;
        /* Sense buffer that will be mapped into outgoing status */
        unsigned char tl_sense_buf[TRANSPORT_SENSE_BUFFER];
};

struct tcm_loop_nexus {
        /*
         * Pointer to TCM session for I_T Nexus
         */
        struct se_session *se_sess;
};

#define TCM_TRANSPORT_ONLINE 0
#define TCM_TRANSPORT_OFFLINE 1

struct tcm_loop_tpg {
        unsigned short tl_tpgt;
        unsigned short tl_transport_status;
        enum target_prot_type tl_fabric_prot_type;
        atomic_t tl_tpg_port_count;
        struct se_portal_group tl_se_tpg;
        struct tcm_loop_hba *tl_hba;
        struct tcm_loop_nexus *tl_nexus;
};

struct tcm_loop_hba {
        u8 tl_proto_id;
        unsigned char tl_wwn_address[TL_WWN_ADDR_LEN];
        struct se_hba_s *se_hba;
        struct se_lun *tl_hba_lun;
        struct se_port *tl_hba_lun_sep;
        struct device dev;
        struct Scsi_Host *sh;
        struct tcm_loop_tpg tl_hba_tpgs[TL_TPGS_PER_HBA];
        struct se_wwn tl_hba_wwn;
};