1 // SPDX-License-Identifier: GPL-2.0 1
2 #ifndef IOU_OP_DEF_H
3 #define IOU_OP_DEF_H
4
5 struct 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 regu
11 unsigned hash_reg_file
12 /* unbound wq insertion if file is a n
13 unsigned unbound_nonreg
14 /* set if opcode supports polled "wait
15 unsigned pollin : 1;
16 unsigned pollout : 1;
17 unsigned poll_exclusive
18 /* op supports buffer selection */
19 unsigned buffer_select
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 :
28 /* vectored opcode, set if 1) vectored
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 *, unsign
35 int (*prep)(struct io_kiocb *, const s
36 };
37
38 struct io_cold_def {
39 const char *name;
40
41 void (*cleanup)(struct io_kiocb *);
42 void (*fail)(struct io_kiocb *);
43 };
44
45 extern const struct io_issue_def io_issue_defs
46 extern const struct io_cold_def io_cold_defs[]
47
48 bool io_uring_op_supported(u8 opcode);
49
50 void io_uring_optable_init(void);
51 #endif
52
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