drivers/target/target_core_iblock.h

   1 #ifndef TARGET_CORE_IBLOCK_H
   2 #define TARGET_CORE_IBLOCK_H
   3
   4 #define IBLOCK_VERSION          "4.0"
   5
   6 #define IBLOCK_HBA_QUEUE_DEPTH  512
   7 #define IBLOCK_DEVICE_QUEUE_DEPTH       32
   8 #define IBLOCK_MAX_DEVICE_QUEUE_DEPTH   128
   9 #define IBLOCK_MAX_CDBS         16
  10 #define IBLOCK_LBA_SHIFT        9
  11
  12 struct iblock_req {
  13         struct se_task ib_task;
  14         unsigned char ib_scsi_cdb[TCM_MAX_COMMAND_SIZE];
  15         atomic_t ib_bio_cnt;
  16         atomic_t ib_bio_err_cnt;
  17         struct bio *ib_bio;
  18         struct iblock_dev *ib_dev;
  19 } ____cacheline_aligned;
  20
  21 #define IBDF_HAS_UDEV_PATH              0x01
  22 #define IBDF_HAS_FORCE                  0x02
  23
  24 struct iblock_dev {
  25         unsigned char ibd_udev_path[SE_UDEV_PATH_LEN];
  26         int     ibd_force;
  27         int     ibd_major;
  28         int     ibd_minor;
  29         u32     ibd_depth;
  30         u32     ibd_flags;
  31         struct bio_set  *ibd_bio_set;
  32         struct block_device *ibd_bd;
  33         struct iblock_hba *ibd_host;
  34 } ____cacheline_aligned;
  35
  36 struct iblock_hba {
  37         int             iblock_host_id;
  38 } ____cacheline_aligned;
  39
  40 #endif /* TARGET_CORE_IBLOCK_H */