1// SPDX-License-Identifier: GPL-2.0
 2#ifndef IOU_OP_DEF_H
 3#define IOU_OP_DEF_H
 4
 5struct io_issue_def {
 6	/* needs req->file assigned */
 7	unsigned		needs_file : 1;
 8	/* should block plug */
 9	unsigned		plug : 1;
10	/* hash wq insertion if file is a regular file */
11	unsigned		hash_reg_file : 1;
12	/* unbound wq insertion if file is a non-regular file */
13	unsigned		unbound_nonreg_file : 1;
14	/* set if opcode supports polled "wait" */
15	unsigned		pollin : 1;
16	unsigned		pollout : 1;
17	unsigned		poll_exclusive : 1;
18	/* op supports buffer selection */
19	unsigned		buffer_select : 1;
20	/* skip auditing */
21	unsigned		audit_skip : 1;
22	/* supports ioprio */
23	unsigned		ioprio : 1;
24	/* supports iopoll */
25	unsigned		iopoll : 1;
26	/* have to be put into the iopoll list */
27	unsigned		iopoll_queue : 1;
28	/* vectored opcode, set if 1) vectored, and 2) handler needs to know */
29	unsigned		vectored : 1;
30
31	/* size of async data needed, if any */
32	unsigned short		async_size;
33
34	int (*issue)(struct io_kiocb *, unsigned int);
35	int (*prep)(struct io_kiocb *, const struct io_uring_sqe *);
36};
37
38struct io_cold_def {
39	const char		*name;
40
41	void (*cleanup)(struct io_kiocb *);
42	void (*fail)(struct io_kiocb *);
43};
44
45extern const struct io_issue_def io_issue_defs[];
46extern const struct io_cold_def io_cold_defs[];
47
48bool io_uring_op_supported(u8 opcode);
49
50void io_uring_optable_init(void);
51#endif