linux - drivers/target/target_core

52 lines · 1.2 KiB

1	/* SPDX-License-Identifier: GPL-2.0 */
2	#ifndef TARGET_CORE_FILE_H
3	#define TARGET_CORE_FILE_H
4
5	#include <target/target_core_base.h>
6
7	#define FD_VERSION "4.0"
8
9	#define FD_MAX_DEV_NAME 256
10	#define FD_MAX_DEV_PROT_NAME FD_MAX_DEV_NAME + 16
11	#define FD_DEVICE_QUEUE_DEPTH 32
12	#define FD_MAX_DEVICE_QUEUE_DEPTH 128
13	#define FD_BLOCKSIZE 512
14	/*
15	* Limited by the number of iovecs (2048) per vfs_[writev,readv] call
16	*/
17	#define FD_MAX_BYTES 8388608
18
19	#define RRF_EMULATE_CDB 0x01
20	#define RRF_GOT_LBA 0x02
21
22	#define FBDF_HAS_PATH 0x01
23	#define FBDF_HAS_SIZE 0x02
24	#define FDBD_HAS_BUFFERED_IO_WCE 0x04
25	#define FDBD_HAS_ASYNC_IO 0x08
26	#define FDBD_FORMAT_UNIT_SIZE 2048
27
28	struct fd_dev {
29	struct se_device dev;
30
31	u32 fbd_flags;
32	unsigned char fd_dev_name[FD_MAX_DEV_NAME];
33	/* Unique Ramdisk Device ID in Ramdisk HBA */
34	u32 fd_dev_id;
35	/* Number of SG tables in sg_table_array */
36	u32 fd_table_count;
37	u32 fd_queue_depth;
38	u32 fd_block_size;
39	unsigned long long fd_dev_size;
40	struct file *fd_file;
41	struct file *fd_prot_file;
42	/* FILEIO HBA device is connected to */
43	struct fd_host *fd_host;
44	} ____cacheline_aligned;
45
46	struct fd_host {
47	u32 fd_host_dev_id_count;
48	/* Unique FILEIO Host ID */
49	u32 fd_host_id;
50	} ____cacheline_aligned;
51
52	#endif /* TARGET_CORE_FILE_H */