diff --git a/libc/kernel/uapi/rdma/siw-abi.h b/libc/kernel/uapi/rdma/siw-abi.h
new file mode 100644
index 0000000..e2363a1
--- /dev/null
+++ b/libc/kernel/uapi/rdma/siw-abi.h
@@ -0,0 +1,153 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   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 _SIW_USER_H
+#define _SIW_USER_H
+#include <linux/types.h>
+#define SIW_NODE_DESC_COMMON "Software iWARP stack"
+#define SIW_ABI_VERSION 1
+#define SIW_MAX_SGE 6
+#define SIW_UOBJ_MAX_KEY 0x08FFFF
+#define SIW_INVAL_UOBJ_KEY (SIW_UOBJ_MAX_KEY + 1)
+struct siw_uresp_create_cq {
+  __u32 cq_id;
+  __u32 num_cqe;
+  __aligned_u64 cq_key;
+};
+struct siw_uresp_create_qp {
+  __u32 qp_id;
+  __u32 num_sqe;
+  __u32 num_rqe;
+  __u32 pad;
+  __aligned_u64 sq_key;
+  __aligned_u64 rq_key;
+};
+struct siw_ureq_reg_mr {
+  __u8 stag_key;
+  __u8 reserved[3];
+  __u32 pad;
+};
+struct siw_uresp_reg_mr {
+  __u32 stag;
+  __u32 pad;
+};
+struct siw_uresp_create_srq {
+  __u32 num_rqe;
+  __u32 pad;
+  __aligned_u64 srq_key;
+};
+struct siw_uresp_alloc_ctx {
+  __u32 dev_id;
+  __u32 pad;
+};
+enum siw_opcode {
+  SIW_OP_WRITE,
+  SIW_OP_READ,
+  SIW_OP_READ_LOCAL_INV,
+  SIW_OP_SEND,
+  SIW_OP_SEND_WITH_IMM,
+  SIW_OP_SEND_REMOTE_INV,
+  SIW_OP_FETCH_AND_ADD,
+  SIW_OP_COMP_AND_SWAP,
+  SIW_OP_RECEIVE,
+  SIW_OP_READ_RESPONSE,
+  SIW_OP_INVAL_STAG,
+  SIW_OP_REG_MR,
+  SIW_NUM_OPCODES
+};
+struct siw_sge {
+  __aligned_u64 laddr;
+  __u32 length;
+  __u32 lkey;
+};
+#define SIW_MAX_INLINE (sizeof(struct siw_sge) * (SIW_MAX_SGE - 1))
+#if SIW_MAX_SGE < 2
+#error "SIW_MAX_SGE must be at least 2"
+#endif
+enum siw_wqe_flags {
+  SIW_WQE_VALID = 1,
+  SIW_WQE_INLINE = (1 << 1),
+  SIW_WQE_SIGNALLED = (1 << 2),
+  SIW_WQE_SOLICITED = (1 << 3),
+  SIW_WQE_READ_FENCE = (1 << 4),
+  SIW_WQE_REM_INVAL = (1 << 5),
+  SIW_WQE_COMPLETED = (1 << 6)
+};
+struct siw_sqe {
+  __aligned_u64 id;
+  __u16 flags;
+  __u8 num_sge;
+  __u8 opcode;
+  __u32 rkey;
+  union {
+    __aligned_u64 raddr;
+    __aligned_u64 base_mr;
+  };
+  union {
+    struct siw_sge sge[SIW_MAX_SGE];
+    __aligned_u64 access;
+  };
+};
+struct siw_rqe {
+  __aligned_u64 id;
+  __u16 flags;
+  __u8 num_sge;
+  __u8 opcode;
+  __u32 unused;
+  struct siw_sge sge[SIW_MAX_SGE];
+};
+enum siw_notify_flags {
+  SIW_NOTIFY_NOT = (0),
+  SIW_NOTIFY_SOLICITED = (1 << 0),
+  SIW_NOTIFY_NEXT_COMPLETION = (1 << 1),
+  SIW_NOTIFY_MISSED_EVENTS = (1 << 2),
+  SIW_NOTIFY_ALL = SIW_NOTIFY_SOLICITED | SIW_NOTIFY_NEXT_COMPLETION | SIW_NOTIFY_MISSED_EVENTS
+};
+enum siw_wc_status {
+  SIW_WC_SUCCESS,
+  SIW_WC_LOC_LEN_ERR,
+  SIW_WC_LOC_PROT_ERR,
+  SIW_WC_LOC_QP_OP_ERR,
+  SIW_WC_WR_FLUSH_ERR,
+  SIW_WC_BAD_RESP_ERR,
+  SIW_WC_LOC_ACCESS_ERR,
+  SIW_WC_REM_ACCESS_ERR,
+  SIW_WC_REM_INV_REQ_ERR,
+  SIW_WC_GENERAL_ERR,
+  SIW_NUM_WC_STATUS
+};
+struct siw_cqe {
+  __aligned_u64 id;
+  __u8 flags;
+  __u8 opcode;
+  __u16 status;
+  __u32 bytes;
+  union {
+    __aligned_u64 imm_data;
+    __u32 inval_stag;
+  };
+  union {
+    struct ib_qp * base_qp;
+    __aligned_u64 qp_id;
+  };
+};
+struct siw_cq_ctrl {
+  __u32 flags;
+  __u32 pad;
+};
+#endif