[mirror_ubuntu-jammy-kernel.git] / drivers / target / target_core_file.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef TARGET_CORE_FILE_H
#define TARGET_CORE_FILE_H

#include <target/target_core_base.h>

#define FD_VERSION		"4.0"

#define FD_MAX_DEV_NAME		256
#define FD_MAX_DEV_PROT_NAME	FD_MAX_DEV_NAME + 16
#define FD_DEVICE_QUEUE_DEPTH	32
#define FD_MAX_DEVICE_QUEUE_DEPTH 128
#define FD_BLOCKSIZE		512
/*
 * Limited by the number of iovecs (2048) per vfs_[writev,readv] call
 */
#define FD_MAX_BYTES		8388608

#define RRF_EMULATE_CDB		0x01
#define RRF_GOT_LBA		0x02

#define FBDF_HAS_PATH		0x01
#define FBDF_HAS_SIZE		0x02
#define FDBD_HAS_BUFFERED_IO_WCE 0x04
#define FDBD_HAS_ASYNC_IO	 0x08
#define FDBD_FORMAT_UNIT_SIZE	2048

struct fd_dev {
	struct se_device dev;

	u32		fbd_flags;
	unsigned char	fd_dev_name[FD_MAX_DEV_NAME];
	/* Unique Ramdisk Device ID in Ramdisk HBA */
	u32		fd_dev_id;
	/* Number of SG tables in sg_table_array */
	u32		fd_table_count;
	u32		fd_queue_depth;
	u32		fd_block_size;
	unsigned long long fd_dev_size;
	struct file	*fd_file;
	struct file	*fd_prot_file;
	/* FILEIO HBA device is connected to */
	struct fd_host *fd_host;
} ____cacheline_aligned;

struct fd_host {
	u32		fd_host_dev_id_count;
	/* Unique FILEIO Host ID */
	u32		fd_host_id;
} ____cacheline_aligned;

#endif /* TARGET_CORE_FILE_H */
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
c66ac9db NB	2	#ifndef TARGET_CORE_FILE_H
	3	#define TARGET_CORE_FILE_H
	4
8dcf07be BVA	5	#include <target/target_core_base.h>
8dcf07be BVA	6
c66ac9db NB	7	#define FD_VERSION "4.0"
	8
	9	#define FD_MAX_DEV_NAME 256
0f5e2ec4	10	#define FD_MAX_DEV_PROT_NAME FD_MAX_DEV_NAME + 16
c66ac9db NB	11	#define FD_DEVICE_QUEUE_DEPTH 32
	12	#define FD_MAX_DEVICE_QUEUE_DEPTH 128
	13	#define FD_BLOCKSIZE 512
95cadace NB	14	/*
	15	* Limited by the number of iovecs (2048) per vfs_[writev,readv] call
	16	*/
	17	#define FD_MAX_BYTES 8388608
c66ac9db NB	18
	19	#define RRF_EMULATE_CDB 0x01
	20	#define RRF_GOT_LBA 0x02
	21
c66ac9db NB	22	#define FBDF_HAS_PATH 0x01
c66ac9db NB	23	#define FBDF_HAS_SIZE 0x02
b32f4c7e	24	#define FDBD_HAS_BUFFERED_IO_WCE 0x04
769031c9	25	#define FDBD_HAS_ASYNC_IO 0x08
0f5e2ec4 NB	26	#define FDBD_FORMAT_UNIT_SIZE 2048
0f5e2ec4 NB	27
c66ac9db	28	struct fd_dev {
0fd97ccf CH	29	struct se_device dev;
0fd97ccf CH	30
c66ac9db NB	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;
0f5e2ec4	41	struct file *fd_prot_file;
c66ac9db NB	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 */