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