drivers/target/loopback/tcm_loop.h

   1 #define TCM_LOOP_VERSION                "v2.1-rc2"
   2 #define TL_WWN_ADDR_LEN                 256
   3 #define TL_TPGS_PER_HBA                 32
   4
   5 /*
   6  * Used in tcm_loop_driver_probe() for struct Scsi_Host->max_cmd_len
   7  */
   8 #define TL_SCSI_MAX_CMD_LEN             32
   9
  10 struct tcm_loop_cmd {
  11         /* State of Linux/SCSI CDB+Data descriptor */
  12         u32 sc_cmd_state;
  13         /* Pointer to the CDB+Data descriptor from Linux/SCSI subsystem */
  14         struct scsi_cmnd *sc;
  15         /* The TCM I/O descriptor that is accessed via container_of() */
  16         struct se_cmd tl_se_cmd;
  17         struct work_struct work;
  18         /* Sense buffer that will be mapped into outgoing status */
  19         unsigned char tl_sense_buf[TRANSPORT_SENSE_BUFFER];
  20 };
  21
  22 struct tcm_loop_tmr {
  23         atomic_t tmr_complete;
  24         wait_queue_head_t tl_tmr_wait;
  25 };
  26
  27 struct tcm_loop_nexus {
  28         int it_nexus_active;
  29         /*
  30          * Pointer to Linux/SCSI HBA from linux/include/scsi_host.h
  31          */
  32         struct scsi_host *sh;
  33         /*
  34          * Pointer to TCM session for I_T Nexus
  35          */
  36         struct se_session *se_sess;
  37 };
  38
  39 struct tcm_loop_nacl {
  40         struct se_node_acl se_node_acl;
  41 };
  42
  43 struct tcm_loop_tpg {
  44         unsigned short tl_tpgt;
  45         atomic_t tl_tpg_port_count;
  46         struct se_portal_group tl_se_tpg;
  47         struct tcm_loop_hba *tl_hba;
  48 };
  49
  50 struct tcm_loop_hba {
  51         u8 tl_proto_id;
  52         unsigned char tl_wwn_address[TL_WWN_ADDR_LEN];
  53         struct se_hba_s *se_hba;
  54         struct se_lun *tl_hba_lun;
  55         struct se_port *tl_hba_lun_sep;
  56         struct tcm_loop_nexus *tl_nexus;
  57         struct device dev;
  58         struct Scsi_Host *sh;
  59         struct tcm_loop_tpg tl_hba_tpgs[TL_TPGS_PER_HBA];
  60         struct se_wwn tl_hba_wwn;
  61 };