tcm_loop.h

Go to the documentation of this file.

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

/*
 * Used in tcm_loop_driver_probe() for struct Scsi_Host->max_cmd_len
 */
#define TL_SCSI_MAX_CMD_LEN     32

struct tcm_loop_cmd {
    /* State of Linux/SCSI CDB+Data descriptor */
    u32 sc_cmd_state;
    /* 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 work_struct work;
    /* Sense buffer that will be mapped into outgoing status */
    unsigned char tl_sense_buf[TRANSPORT_SENSE_BUFFER];
};

struct tcm_loop_tmr {
    atomic_t tmr_complete;
    wait_queue_head_t tl_tmr_wait;
};

struct tcm_loop_nexus {
    int it_nexus_active;
    /*
     * Pointer to Linux/SCSI HBA from linux/include/scsi_host.h
     */
    struct scsi_host *sh;
    /*
     * Pointer to TCM session for I_T Nexus
     */
    struct se_session *se_sess;
};

struct tcm_loop_nacl {
    struct se_node_acl se_node_acl;
};

struct tcm_loop_tpg {
    unsigned short tl_tpgt;
    atomic_t tl_tpg_port_count;
    struct se_portal_group tl_se_tpg;
    struct tcm_loop_hba *tl_hba;
};

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 se_device_s *se_dev_hba_ptr;
    struct tcm_loop_nexus *tl_nexus;
    struct device dev;
    struct Scsi_Host *sh;
    struct tcm_loop_tpg tl_hba_tpgs[TL_TPGS_PER_HBA];
    struct se_wwn tl_hba_wwn;
};