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 struct tcm_loop_cmd {
   6         /* State of Linux/SCSI CDB+Data descriptor */
   7         u32 sc_cmd_state;
   8         /* Tagged command queueing */
   9         u32 sc_cmd_tag;
  10         /* Pointer to the CDB+Data descriptor from Linux/SCSI subsystem */
  11         struct scsi_cmnd *sc;
  12         /* The TCM I/O descriptor that is accessed via container_of() */
  13         struct se_cmd tl_se_cmd;
  14         struct work_struct work;
  15         /* Sense buffer that will be mapped into outgoing status */
  16         unsigned char tl_sense_buf[TRANSPORT_SENSE_BUFFER];
  17 };
  18
  19 struct tcm_loop_tmr {
  20         atomic_t tmr_complete;
  21         wait_queue_head_t tl_tmr_wait;
  22 };
  23
  24 struct tcm_loop_nexus {
  25         /*
  26          * Pointer to TCM session for I_T Nexus
  27          */
  28         struct se_session *se_sess;
  29 };
  30
  31 #define TCM_TRANSPORT_ONLINE 0
  32 #define TCM_TRANSPORT_OFFLINE 1
  33
  34 struct tcm_loop_tpg {
  35         unsigned short tl_tpgt;
  36         unsigned short tl_transport_status;
  37         enum target_prot_type tl_fabric_prot_type;
  38         atomic_t tl_tpg_port_count;
  39         struct se_portal_group tl_se_tpg;
  40         struct tcm_loop_hba *tl_hba;
  41         struct tcm_loop_nexus *tl_nexus;
  42 };
  43
  44 struct tcm_loop_hba {
  45         u8 tl_proto_id;
  46         unsigned char tl_wwn_address[TL_WWN_ADDR_LEN];
  47         struct se_hba_s *se_hba;
  48         struct se_lun *tl_hba_lun;
  49         struct se_port *tl_hba_lun_sep;
  50         struct device dev;
  51         struct Scsi_Host *sh;
  52         struct tcm_loop_tpg tl_hba_tpgs[TL_TPGS_PER_HBA];
  53         struct se_wwn tl_hba_wwn;
  54 };