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path: root/drivers/target/target_core_iblock.h
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Diffstat (limited to 'drivers/target/target_core_iblock.h')
-rw-r--r--drivers/target/target_core_iblock.h40
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 000000000000..64c1f4d69f76
--- /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 */