diff --git a/libc/kernel/uapi/linux/rds.h b/libc/kernel/uapi/linux/rds.h
new file mode 100644
index 0000000..98c5644
--- /dev/null
+++ b/libc/kernel/uapi/linux/rds.h
@@ -0,0 +1,223 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   This header was automatically generated from a Linux kernel header
+ ***   of the same name, to make information necessary for userspace to
+ ***   call into the kernel available to libc.  It contains only constants,
+ ***   structures, and macros generated from the original header, and thus,
+ ***   contains no copyrightable information.
+ ***
+ ***   To edit the content of this header, modify the corresponding
+ ***   source file (e.g. under external/kernel-headers/original/) then
+ ***   run bionic/libc/kernel/tools/update_all.py
+ ***
+ ***   Any manual change here will be lost the next time this script will
+ ***   be run. You've been warned!
+ ***
+ ****************************************************************************
+ ****************************************************************************/
+#ifndef _LINUX_RDS_H
+#define _LINUX_RDS_H
+#include <linux/types.h>
+#define RDS_IB_ABI_VERSION 0x301
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define RDS_CANCEL_SENT_TO 1
+#define RDS_GET_MR 2
+#define RDS_FREE_MR 3
+#define RDS_RECVERR 5
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define RDS_CONG_MONITOR 6
+#define RDS_GET_MR_FOR_DEST 7
+#define RDS_CMSG_RDMA_ARGS 1
+#define RDS_CMSG_RDMA_DEST 2
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define RDS_CMSG_RDMA_MAP 3
+#define RDS_CMSG_RDMA_STATUS 4
+#define RDS_CMSG_CONG_UPDATE 5
+#define RDS_CMSG_ATOMIC_FADD 6
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define RDS_CMSG_ATOMIC_CSWP 7
+#define RDS_CMSG_MASKED_ATOMIC_FADD 8
+#define RDS_CMSG_MASKED_ATOMIC_CSWP 9
+#define RDS_INFO_FIRST 10000
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define RDS_INFO_COUNTERS 10000
+#define RDS_INFO_CONNECTIONS 10001
+#define RDS_INFO_SEND_MESSAGES 10003
+#define RDS_INFO_RETRANS_MESSAGES 10004
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define RDS_INFO_RECV_MESSAGES 10005
+#define RDS_INFO_SOCKETS 10006
+#define RDS_INFO_TCP_SOCKETS 10007
+#define RDS_INFO_IB_CONNECTIONS 10008
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define RDS_INFO_CONNECTION_STATS 10009
+#define RDS_INFO_IWARP_CONNECTIONS 10010
+#define RDS_INFO_LAST 10010
+struct rds_info_counter {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint8_t name[32];
+ uint64_t value;
+} __attribute__((packed));
+#define RDS_INFO_CONNECTION_FLAG_SENDING 0x01
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define RDS_INFO_CONNECTION_FLAG_CONNECTING 0x02
+#define RDS_INFO_CONNECTION_FLAG_CONNECTED 0x04
+#define TRANSNAMSIZ 16
+struct rds_info_connection {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint64_t next_tx_seq;
+ uint64_t next_rx_seq;
+ __be32 laddr;
+ __be32 faddr;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint8_t transport[TRANSNAMSIZ];
+ uint8_t flags;
+} __attribute__((packed));
+#define RDS_INFO_MESSAGE_FLAG_ACK 0x01
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define RDS_INFO_MESSAGE_FLAG_FAST_ACK 0x02
+struct rds_info_message {
+ uint64_t seq;
+ uint32_t len;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ __be32 laddr;
+ __be32 faddr;
+ __be16 lport;
+ __be16 fport;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint8_t flags;
+} __attribute__((packed));
+struct rds_info_socket {
+ uint32_t sndbuf;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ __be32 bound_addr;
+ __be32 connected_addr;
+ __be16 bound_port;
+ __be16 connected_port;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint32_t rcvbuf;
+ uint64_t inum;
+} __attribute__((packed));
+struct rds_info_tcp_socket {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ __be32 local_addr;
+ __be16 local_port;
+ __be32 peer_addr;
+ __be16 peer_port;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint64_t hdr_rem;
+ uint64_t data_rem;
+ uint32_t last_sent_nxt;
+ uint32_t last_expected_una;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint32_t last_seen_una;
+} __attribute__((packed));
+#define RDS_IB_GID_LEN 16
+struct rds_info_rdma_connection {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ __be32 src_addr;
+ __be32 dst_addr;
+ uint8_t src_gid[RDS_IB_GID_LEN];
+ uint8_t dst_gid[RDS_IB_GID_LEN];
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint32_t max_send_wr;
+ uint32_t max_recv_wr;
+ uint32_t max_send_sge;
+ uint32_t rdma_mr_max;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint32_t rdma_mr_size;
+};
+#define RDS_CONG_MONITOR_SIZE 64
+#define RDS_CONG_MONITOR_BIT(port) (((unsigned int) port) % RDS_CONG_MONITOR_SIZE)
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define RDS_CONG_MONITOR_MASK(port) (1ULL << RDS_CONG_MONITOR_BIT(port))
+typedef uint64_t rds_rdma_cookie_t;
+struct rds_iovec {
+ uint64_t addr;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint64_t bytes;
+};
+struct rds_get_mr_args {
+ struct rds_iovec vec;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint64_t cookie_addr;
+ uint64_t flags;
+};
+struct rds_get_mr_for_dest_args {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ struct sockaddr_storage dest_addr;
+ struct rds_iovec vec;
+ uint64_t cookie_addr;
+ uint64_t flags;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+};
+struct rds_free_mr_args {
+ rds_rdma_cookie_t cookie;
+ uint64_t flags;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+};
+struct rds_rdma_args {
+ rds_rdma_cookie_t cookie;
+ struct rds_iovec remote_vec;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint64_t local_vec_addr;
+ uint64_t nr_local;
+ uint64_t flags;
+ uint64_t user_token;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+};
+struct rds_atomic_args {
+ rds_rdma_cookie_t cookie;
+ uint64_t local_addr;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint64_t remote_addr;
+ union {
+ struct {
+ uint64_t compare;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint64_t swap;
+ } cswp;
+ struct {
+ uint64_t add;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ } fadd;
+ struct {
+ uint64_t compare;
+ uint64_t swap;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint64_t compare_mask;
+ uint64_t swap_mask;
+ } m_cswp;
+ struct {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint64_t add;
+ uint64_t nocarry_mask;
+ } m_fadd;
+ };
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint64_t flags;
+ uint64_t user_token;
+};
+struct rds_rdma_notify {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint64_t user_token;
+ int32_t status;
+};
+#define RDS_RDMA_SUCCESS 0
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define RDS_RDMA_REMOTE_ERROR 1
+#define RDS_RDMA_CANCELED 2
+#define RDS_RDMA_DROPPED 3
+#define RDS_RDMA_OTHER_ERROR 4
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define RDS_RDMA_READWRITE 0x0001
+#define RDS_RDMA_FENCE 0x0002
+#define RDS_RDMA_INVALIDATE 0x0004
+#define RDS_RDMA_USE_ONCE 0x0008
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define RDS_RDMA_DONTWAIT 0x0010
+#define RDS_RDMA_NOTIFY_ME 0x0020
+#define RDS_RDMA_SILENT 0x0040
+#endif
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */