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d21c362182
Rather than open-code this logic in io_uring_populate_bpf_ctx() with a switch, move it to the issue side definitions. Outside of making this easier to extend in the future, it's also a prep patch for using the pdu size for a given opcode filter elsewhere. Signed-off-by: Jens Axboe <axboe@kernel.dk>
60 lines
1.6 KiB
C
60 lines
1.6 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#ifndef IOU_OP_DEF_H
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#define IOU_OP_DEF_H
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struct io_uring_bpf_ctx;
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struct io_issue_def {
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/* needs req->file assigned */
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unsigned needs_file : 1;
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/* should block plug */
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unsigned plug : 1;
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/* supports ioprio */
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unsigned ioprio : 1;
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/* supports iopoll */
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unsigned iopoll : 1;
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/* op supports buffer selection */
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unsigned buffer_select : 1;
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/* hash wq insertion if file is a regular file */
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unsigned hash_reg_file : 1;
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/* unbound wq insertion if file is a non-regular file */
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unsigned unbound_nonreg_file : 1;
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/* set if opcode supports polled "wait" */
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unsigned pollin : 1;
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unsigned pollout : 1;
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unsigned poll_exclusive : 1;
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/* skip auditing */
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unsigned audit_skip : 1;
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/* have to be put into the iopoll list */
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unsigned iopoll_queue : 1;
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/* vectored opcode, set if 1) vectored, and 2) handler needs to know */
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unsigned vectored : 1;
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/* set to 1 if this opcode uses 128b sqes in a mixed sq */
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unsigned is_128 : 1;
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/* size of async data needed, if any */
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unsigned short async_size;
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/* bpf filter pdu size, if any */
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unsigned short filter_pdu_size;
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int (*issue)(struct io_kiocb *, unsigned int);
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int (*prep)(struct io_kiocb *, const struct io_uring_sqe *);
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void (*filter_populate)(struct io_uring_bpf_ctx *, struct io_kiocb *);
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};
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struct io_cold_def {
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const char *name;
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void (*sqe_copy)(struct io_kiocb *);
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void (*cleanup)(struct io_kiocb *);
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void (*fail)(struct io_kiocb *);
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};
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extern const struct io_issue_def io_issue_defs[];
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extern const struct io_cold_def io_cold_defs[];
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bool io_uring_op_supported(u8 opcode);
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void io_uring_optable_init(void);
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#endif
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