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-rw-r--r--io_uring/uring_cmd.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/io_uring/uring_cmd.h b/io_uring/uring_cmd.h
new file mode 100644
index 000000000000..7c6697d13cb2
--- /dev/null
+++ b/io_uring/uring_cmd.h
@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: GPL-2.0
+
+int io_uring_cmd(struct io_kiocb *req, unsigned int issue_flags);
+int io_uring_cmd_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
+int io_uring_cmd_prep_async(struct io_kiocb *req);
+
+/*
+ * The URING_CMD payload starts at 'cmd' in the first sqe, and continues into
+ * the following sqe if SQE128 is used.
+ */
+#define uring_cmd_pdu_size(is_sqe128) \
+ ((1 + !!(is_sqe128)) * sizeof(struct io_uring_sqe) - \
+ offsetof(struct io_uring_sqe, cmd))