linux/drivers/target/target_core_file.h
Christoph Hellwig 6193f06e6f target: make the ->get_cdb method optional
The most commonly used file, iblock and rd backends have no use for
a per-task CDB and thus don't need a method to copy it into their
otherwise unused CDB fields.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-10-24 03:21:11 +00:00

45 lines
986 B
C

#ifndef TARGET_CORE_FILE_H
#define TARGET_CORE_FILE_H
#define FD_VERSION "4.0"
#define FD_MAX_DEV_NAME 256
#define FD_DEVICE_QUEUE_DEPTH 32
#define FD_MAX_DEVICE_QUEUE_DEPTH 128
#define FD_BLOCKSIZE 512
#define FD_MAX_SECTORS 1024
#define RRF_EMULATE_CDB 0x01
#define RRF_GOT_LBA 0x02
struct fd_request {
struct se_task fd_task;
};
#define FBDF_HAS_PATH 0x01
#define FBDF_HAS_SIZE 0x02
#define FDBD_USE_BUFFERED_IO 0x04
struct fd_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;
/* 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 */