diff options
Diffstat (limited to 'drivers/target/target_core_iblock.h')
| -rw-r--r-- | drivers/target/target_core_iblock.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/drivers/target/target_core_iblock.h b/drivers/target/target_core_iblock.h new file mode 100644 index 00000000000..64c1f4d69f7 --- /dev/null +++ b/drivers/target/target_core_iblock.h @@ -0,0 +1,40 @@ +#ifndef TARGET_CORE_IBLOCK_H +#define TARGET_CORE_IBLOCK_H + +#define IBLOCK_VERSION "4.0" + +#define IBLOCK_HBA_QUEUE_DEPTH 512 +#define IBLOCK_DEVICE_QUEUE_DEPTH 32 +#define IBLOCK_MAX_DEVICE_QUEUE_DEPTH 128 +#define IBLOCK_MAX_CDBS 16 +#define IBLOCK_LBA_SHIFT 9 + +struct iblock_req { + struct se_task ib_task; + unsigned char ib_scsi_cdb[TCM_MAX_COMMAND_SIZE]; + atomic_t ib_bio_cnt; + atomic_t ib_bio_err_cnt; + struct bio *ib_bio; + struct iblock_dev *ib_dev; +} ____cacheline_aligned; + +#define IBDF_HAS_UDEV_PATH 0x01 +#define IBDF_HAS_FORCE 0x02 + +struct iblock_dev { + unsigned char ibd_udev_path[SE_UDEV_PATH_LEN]; + int ibd_force; + int ibd_major; + int ibd_minor; + u32 ibd_depth; + u32 ibd_flags; + struct bio_set *ibd_bio_set; + struct block_device *ibd_bd; + struct iblock_hba *ibd_host; +} ____cacheline_aligned; + +struct iblock_hba { + int iblock_host_id; +} ____cacheline_aligned; + +#endif /* TARGET_CORE_IBLOCK_H */ |