linux/linux

the linux kernel

git clone https://git.t4t.associates/linux/linux

Linus TorvaldsLinux 7.3-rc1cee9395acd80

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1// SPDX-License-Identifier: GPL-2.0
2#ifndef IOU_OP_DEF_H
3#define IOU_OP_DEF_H
4
5struct io_uring_bpf_ctx;
6
7struct io_issue_def {
8	/* needs req->file assigned */
9	unsigned		needs_file : 1;
10	/* should block plug */
11	unsigned		plug : 1;
12	/* supports ioprio */
13	unsigned		ioprio : 1;
14	/* supports iopoll */
15	unsigned		iopoll : 1;
16	/* op supports buffer selection */
17	unsigned		buffer_select : 1;
18	/* hash wq insertion if file is a regular file */
19	unsigned		hash_reg_file : 1;
20	/* unbound wq insertion if file is a non-regular file */
21	unsigned		unbound_nonreg_file : 1;
22	/* set if opcode supports polled "wait" */
23	unsigned		pollin : 1;
24	unsigned		pollout : 1;
25	unsigned		poll_exclusive : 1;
26	/* skip auditing */
27	unsigned		audit_skip : 1;
28	/* vectored opcode, set if 1) vectored, and 2) handler needs to know */
29	unsigned		vectored : 1;
30	/* set to 1 if this opcode uses 128b sqes in a mixed sq */
31	unsigned		is_128 : 1;
32
33	/* size of async data needed, if any */
34	unsigned short		async_size;
35
36	/* bpf filter pdu size, if any */
37	unsigned short		filter_pdu_size;
38
39	int (*issue)(struct io_kiocb *, unsigned int);
40	int (*prep)(struct io_kiocb *, const struct io_uring_sqe *);
41	void (*filter_populate)(struct io_uring_bpf_ctx *, struct io_kiocb *);
42};
43
44struct io_cold_def {
45	const char		*name;
46
47	void (*sqe_copy)(struct io_kiocb *);
48	void (*cleanup)(struct io_kiocb *);
49	void (*fail)(struct io_kiocb *);
50};
51
52extern const struct io_issue_def io_issue_defs[];
53extern const struct io_cold_def io_cold_defs[];
54
55bool io_uring_op_supported(u8 opcode);
56
57void io_uring_optable_init(void);
58#endif