[PATCH liburing v2 1/4] Add vectored registered buffer req init helpers

[Pavel Begunkov <asml.silence@xxxxxxxxx>]

Signed-off-by: Pavel Begunkov <asml.silence@xxxxxxxxx>
---
 src/include/liburing.h | 31 +++++++++++++++++++++++++++++++
 src/liburing-ffi.map   |  3 +++
 2 files changed, 34 insertions(+)

diff --git a/src/include/liburing.h b/src/include/liburing.h
index d162d0e6..ae2021b9 100644
--- a/src/include/liburing.h
+++ b/src/include/liburing.h
@@ -556,6 +556,16 @@ IOURINGINLINE void io_uring_prep_read_fixed(struct io_uring_sqe *sqe, int fd,
 	sqe->buf_index = (__u16) buf_index;
 }
 
+IOURINGINLINE void io_uring_prep_readv_fixed(struct io_uring_sqe *sqe, int fd,
+					     const struct iovec *iovecs,
+					     unsigned nr_vecs, __u64 offset,
+					     int flags, int buf_index)
+{
+	io_uring_prep_readv2(sqe, fd, iovecs, nr_vecs, offset, flags);
+	sqe->opcode = IORING_OP_READV_FIXED;
+	sqe->buf_index = (__u16)buf_index;
+}
+
 IOURINGINLINE void io_uring_prep_writev(struct io_uring_sqe *sqe, int fd,
 					const struct iovec *iovecs,
 					unsigned nr_vecs, __u64 offset)
@@ -580,6 +590,16 @@ IOURINGINLINE void io_uring_prep_write_fixed(struct io_uring_sqe *sqe, int fd,
 	sqe->buf_index = (__u16) buf_index;
 }
 
+IOURINGINLINE void io_uring_prep_writev_fixed(struct io_uring_sqe *sqe, int fd,
+				       const struct iovec *iovecs,
+				       unsigned nr_vecs, __u64 offset,
+				       int flags, int buf_index)
+{
+	io_uring_prep_writev2(sqe, fd, iovecs, nr_vecs, offset, flags);
+	sqe->opcode = IORING_OP_WRITEV_FIXED;
+	sqe->buf_index = (__u16)buf_index;
+}
+
 IOURINGINLINE void io_uring_prep_recvmsg(struct io_uring_sqe *sqe, int fd,
 					 struct msghdr *msg, unsigned flags)
 {
@@ -964,6 +984,17 @@ IOURINGINLINE void io_uring_prep_sendmsg_zc(struct io_uring_sqe *sqe, int fd,
 	sqe->opcode = IORING_OP_SENDMSG_ZC;
 }
 
+IOURINGINLINE void io_uring_prep_sendmsg_zc_fixed(struct io_uring_sqe *sqe,
+						int fd,
+						const struct msghdr *msg,
+						unsigned flags,
+						unsigned buf_index)
+{
+	io_uring_prep_sendmsg_zc(sqe, fd, msg, flags);
+	sqe->ioprio |= IORING_RECVSEND_FIXED_BUF;
+	sqe->buf_index = buf_index;
+}
+
 IOURINGINLINE void io_uring_prep_recv(struct io_uring_sqe *sqe, int sockfd,
 				      void *buf, size_t len, int flags)
 {
diff --git a/src/liburing-ffi.map b/src/liburing-ffi.map
index 294d2abf..75c9e9bd 100644
--- a/src/liburing-ffi.map
+++ b/src/liburing-ffi.map
@@ -230,4 +230,7 @@ LIBURING_2.10 {
 	global:
 		io_uring_register_ifq;
 		io_uring_prep_epoll_wait;
+		io_uring_prep_writev_fixed;
+		io_uring_prep_readv_fixed;
+		io_uring_prep_sendmsg_zc_fixed;
 } LIBURING_2.9;
-- 
2.48.1