RDMA/erdma: Add the ABI definitions

Signed-off-by: Cheng Xu <chengyou@linux.alibaba.com>

include/uapi/rdma/erdma-abi.h

@@ -0,0 +1,49 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR Linux-OpenIB) */
+/*
+ * Copyright (c) 2020-2021, Alibaba Group.
+ */
+
+#ifndef __ERDMA_USER_H__
+#define __ERDMA_USER_H__
+
+#include <linux/types.h>
+
+#define ERDMA_ABI_VERSION       1
+
+struct erdma_ureq_create_cq {
+	u64 db_record_va;
+	u64 qbuf_va;
+	u32 qbuf_len;
+	u32 rsvd0;
+};
+
+struct erdma_uresp_create_cq {
+	u32 cq_id;
+	u32 num_cqe;
+};
+
+struct erdma_ureq_create_qp {
+	u64 db_record_va;
+	u64 qbuf_va;
+	u32 qbuf_len;
+	u32 rsvd0;
+};
+
+struct erdma_uresp_create_qp {
+	u32 qp_id;
+	u32 num_sqe;
+	u32 num_rqe;
+	u32 rq_offset;
+};
+
+struct erdma_uresp_alloc_ctx {
+	u32 dev_id;
+	u32 pad;
+	u32 sdb_type;
+	u32 sdb_offset;
+	u64 sdb;
+	u64 rdb;
+	u64 cdb;
+};
+
+#endif