1 files changed, 53 insertions, 0 deletions
diff --git a/man/io_uring_buf_ring_add.3 b/man/io_uring_buf_ring_add.3
new file mode 100644
index 0000000..9d8283b
--- /dev/null
+++ b/man/io_uring_buf_ring_add.3
@@ -0,0 +1,53 @@
+.\" Copyright (C) 2022 Jens Axboe <axboe@kernel.dk>
+.\"
+.\" SPDX-License-Identifier: LGPL-2.0-or-later
+.\"
+.TH io_uring_buf_ring_add 3 "May 18, 2022" "liburing-2.2" "liburing Manual"
+.SH NAME
+io_uring_buf_ring_add \- add buffers to a shared buffer ring
+.SH SYNOPSIS
+.nf
+.B #include <liburing.h>
+.PP
+.BI "int io_uring_buf_ring_add(struct io_uring_buf_ring *" br ",
+.BI "                          void *" addr ",
+.BI "                          unsigned int " len ",
+.BI "                          unsigned short " bid ",
+.BI "                          int " mask ",
+.BI "                          int " buf_offset ");"
+.fi
+.SH DESCRIPTION
+.PP
+The
+.BR io_uring_buf_ring_add (3)
+adds a new buffer to the shared buffer ring
+.IR br .
+The buffer address is indicated by
+.I addr
+and is of
+.I len
+bytes of length.
+.I bid
+is the buffer ID, which will be returned in the CQE.
+.I mask
+is the size mask of the ring, available from
+.BR io_uring_buf_ring_mask (3) .
+.I buf_offset
+is the offset to insert at from the current tail. If just one buffer is provided
+before the ring tail is committed with
+.BR io_uring_buf_ring_advance (3)
+or
+.BR io_uring_buf_ring_cq_advance (3),
+then
+.I buf_offset
+should be 0. If buffers are provided in a loop before being committed, the
+.I buf_offset
+must be incremented by one for each buffer added.
+
+.SH RETURN VALUE
+None
+.SH SEE ALSO
+.BR io_uring_register_buf_ring (3),
+.BR io_uring_buf_ring_mask (3),
+.BR io_uring_buf_ring_advance (3),
+.BR io_uring_buf_ring_cq_advance (3)