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         /* Tagged command queueing */
  14         u32 sc_cmd_tag;
  15         /* Pointer to the CDB+Data descriptor from Linux/SCSI subsystem */
  16         struct scsi_cmnd *sc;
  17         /* The TCM I/O descriptor that is accessed via container_of() */
  18         struct se_cmd tl_se_cmd;
  19         struct work_struct work;
  20         /* Sense buffer that will be mapped into outgoing status */
  21         unsigned char tl_sense_buf[TRANSPORT_SENSE_BUFFER];
  22 };
  23
  24 struct tcm_loop_tmr {
  25         atomic_t tmr_complete;
  26         wait_queue_head_t tl_tmr_wait;
  27 };
  28
  29 struct tcm_loop_nexus {
  30         /*
  31          * Pointer to TCM session for I_T Nexus
  32          */
  33         struct se_session *se_sess;
  34 };
  35
  36 struct tcm_loop_nacl {
  37         struct se_node_acl se_node_acl;
  38 };
  39
  40 #define TCM_TRANSPORT_ONLINE 0
  41 #define TCM_TRANSPORT_OFFLINE 1
  42
  43 struct tcm_loop_tpg {
  44         unsigned short tl_tpgt;
  45         unsigned short tl_transport_status;
  46         atomic_t tl_tpg_port_count;
  47         struct se_portal_group tl_se_tpg;
  48         struct tcm_loop_hba *tl_hba;
  49         struct tcm_loop_nexus *tl_nexus;
  50 };
  51
  52 struct tcm_loop_hba {
  53         u8 tl_proto_id;
  54         unsigned char tl_wwn_address[TL_WWN_ADDR_LEN];
  55         struct se_hba_s *se_hba;
  56         struct se_lun *tl_hba_lun;
  57         struct se_port *tl_hba_lun_sep;
  58         struct device dev;
  59         struct Scsi_Host *sh;
  60         struct tcm_loop_tpg tl_hba_tpgs[TL_TPGS_PER_HBA];
  61         struct se_wwn tl_hba_wwn;
  62 };