xref: /linux/drivers/target/target_core_file.h (revision 60063497a95e716c9a689af3be2687d261f115b4)
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 	/* SCSI CDB from iSCSI Command PDU */
18 	unsigned char	fd_scsi_cdb[TCM_MAX_COMMAND_SIZE];
19 } ____cacheline_aligned;
20 
21 #define FBDF_HAS_PATH		0x01
22 #define FBDF_HAS_SIZE		0x02
23 #define FDBD_USE_BUFFERED_IO	0x04
24 
25 struct fd_dev {
26 	u32		fbd_flags;
27 	unsigned char	fd_dev_name[FD_MAX_DEV_NAME];
28 	/* Unique Ramdisk Device ID in Ramdisk HBA */
29 	u32		fd_dev_id;
30 	/* Number of SG tables in sg_table_array */
31 	u32		fd_table_count;
32 	u32		fd_queue_depth;
33 	u32		fd_block_size;
34 	unsigned long long fd_dev_size;
35 	struct file	*fd_file;
36 	/* FILEIO HBA device is connected to */
37 	struct fd_host *fd_host;
38 } ____cacheline_aligned;
39 
40 struct fd_host {
41 	u32		fd_host_dev_id_count;
42 	/* Unique FILEIO Host ID */
43 	u32		fd_host_id;
44 } ____cacheline_aligned;
45 
46 #endif /* TARGET_CORE_FILE_H */
47