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 */ 53