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58 lines · 1.5 KiB

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