1 | // SPDX-License-Identifier: GPL-2.0 |
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 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 | /* opcode is not supported by this kernel */ |
21 | unsigned not_supported : 1; |
22 | /* skip auditing */ |
23 | unsigned audit_skip : 1; |
24 | /* supports ioprio */ |
25 | unsigned ioprio : 1; |
26 | /* supports iopoll */ |
27 | unsigned iopoll : 1; |
28 | /* have to be put into the iopoll list */ |
29 | unsigned iopoll_queue : 1; |
30 | /* opcode specific path will handle ->async_data allocation if needed */ |
31 | unsigned manual_alloc : 1; |
32 | /* vectored opcode, set if 1) vectored, and 2) handler needs to know */ |
33 | unsigned vectored : 1; |
34 | |
35 | int (*issue)(struct io_kiocb *, unsigned int); |
36 | int (*prep)(struct io_kiocb *, const struct io_uring_sqe *); |
37 | }; |
38 | |
39 | struct io_cold_def { |
40 | /* size of async data needed, if any */ |
41 | unsigned short async_size; |
42 | |
43 | const char *name; |
44 | |
45 | int (*prep_async)(struct io_kiocb *); |
46 | void (*cleanup)(struct io_kiocb *); |
47 | void (*fail)(struct io_kiocb *); |
48 | }; |
49 | |
50 | extern const struct io_issue_def io_issue_defs[]; |
51 | extern const struct io_cold_def io_cold_defs[]; |
52 | |
53 | void io_uring_optable_init(void); |
54 | #endif |
55 | |