xref: /linux/drivers/target/target_core_file.h (revision f2ee442115c9b6219083c019939a9cc0c9abb2f8)
1 #ifndef TARGET_CORE_FILE_H
2 #define TARGET_CORE_FILE_H
3 
4 #define FD_VERSION		"4.0"
5 
6 #define FD_MAX_DEV_NAME		256
7 #define FD_DEVICE_QUEUE_DEPTH	32
8 #define FD_MAX_DEVICE_QUEUE_DEPTH 128
9 #define FD_BLOCKSIZE		512
10 #define FD_MAX_SECTORS		1024
11 
12 #define RRF_EMULATE_CDB		0x01
13 #define RRF_GOT_LBA		0x02
14 
15 struct fd_request {
16 	struct se_task	fd_task;
17 };
18 
19 #define FBDF_HAS_PATH		0x01
20 #define FBDF_HAS_SIZE		0x02
21 #define FDBD_USE_BUFFERED_IO	0x04
22 
23 struct fd_dev {
24 	u32		fbd_flags;
25 	unsigned char	fd_dev_name[FD_MAX_DEV_NAME];
26 	/* Unique Ramdisk Device ID in Ramdisk HBA */
27 	u32		fd_dev_id;
28 	/* Number of SG tables in sg_table_array */
29 	u32		fd_table_count;
30 	u32		fd_queue_depth;
31 	u32		fd_block_size;
32 	unsigned long long fd_dev_size;
33 	struct file	*fd_file;
34 	/* FILEIO HBA device is connected to */
35 	struct fd_host *fd_host;
36 } ____cacheline_aligned;
37 
38 struct fd_host {
39 	u32		fd_host_dev_id_count;
40 	/* Unique FILEIO Host ID */
41 	u32		fd_host_id;
42 } ____cacheline_aligned;
43 
44 #endif /* TARGET_CORE_FILE_H */
45