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[karo-tx-linux.git] / drivers / target / target_core_file.h
1 #ifndef TARGET_CORE_FILE_H
2 #define TARGET_CORE_FILE_H
3
4 #include <target/target_core_base.h>
5
6 #define FD_VERSION              "4.0"
7
8 #define FD_MAX_DEV_NAME         256
9 #define FD_MAX_DEV_PROT_NAME    FD_MAX_DEV_NAME + 16
10 #define FD_DEVICE_QUEUE_DEPTH   32
11 #define FD_MAX_DEVICE_QUEUE_DEPTH 128
12 #define FD_BLOCKSIZE            512
13 /*
14  * Limited by the number of iovecs (2048) per vfs_[writev,readv] call
15  */
16 #define FD_MAX_BYTES            8388608
17
18 #define RRF_EMULATE_CDB         0x01
19 #define RRF_GOT_LBA             0x02
20
21 #define FBDF_HAS_PATH           0x01
22 #define FBDF_HAS_SIZE           0x02
23 #define FDBD_HAS_BUFFERED_IO_WCE 0x04
24 #define FDBD_FORMAT_UNIT_SIZE   2048
25
26 struct fd_dev {
27         struct se_device dev;
28
29         u32             fbd_flags;
30         unsigned char   fd_dev_name[FD_MAX_DEV_NAME];
31         /* Unique Ramdisk Device ID in Ramdisk HBA */
32         u32             fd_dev_id;
33         /* Number of SG tables in sg_table_array */
34         u32             fd_table_count;
35         u32             fd_queue_depth;
36         u32             fd_block_size;
37         unsigned long long fd_dev_size;
38         struct file     *fd_file;
39         struct file     *fd_prot_file;
40         /* FILEIO HBA device is connected to */
41         struct fd_host *fd_host;
42 } ____cacheline_aligned;
43
44 struct fd_host {
45         u32             fd_host_dev_id_count;
46         /* Unique FILEIO Host ID */
47         u32             fd_host_id;
48 } ____cacheline_aligned;
49
50 #endif /* TARGET_CORE_FILE_H */