Add the EFA ABI file exposed to userspace.
Signed-off-by: Gal Pressman <galpress@xxxxxxxxxx>
Reviewed-by: Steve Wise <swise@xxxxxxxxxxxxxxxxxxxxx>
---
include/uapi/rdma/efa-abi.h | 101 ++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 101 insertions(+)
create mode 100644 include/uapi/rdma/efa-abi.h
diff --git a/include/uapi/rdma/efa-abi.h b/include/uapi/rdma/efa-abi.h
new file mode 100644
index 000000000000..9599a2a62be8
--- /dev/null
+++ b/include/uapi/rdma/efa-abi.h
@@ -0,0 +1,101 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */
+/*
+ * Copyright 2018-2019 Amazon.com, Inc. or its affiliates. All rights reserved.
+ */
+
+#ifndef EFA_ABI_USER_H
+#define EFA_ABI_USER_H
+
+#include <linux/types.h>
+
+/*
+ * Increment this value if any changes that break userspace ABI
+ * compatibility are made.
+ */
+#define EFA_UVERBS_ABI_VERSION 1
+
+/*
+ * Keep structs aligned to 8 bytes.
+ * Keep reserved fields as arrays of __u8 named reserved_XXX where XXX is the
+ * hex bit offset of the field.
+ */
+
+enum efa_ibv_user_cmds_supp_udata {
+ EFA_USER_CMDS_SUPP_UDATA_QUERY_DEVICE = 1 << 0,
+ EFA_USER_CMDS_SUPP_UDATA_CREATE_AH = 1 << 1,
+};
+
+struct efa_ibv_alloc_ucontext_resp {
+ __u32 comp_mask;
+ __u32 cmds_supp_udata_mask;
+ __u16 sub_cqs_per_cq;
+ __u16 inline_buf_size;
+ __u32 max_llq_size; /* bytes */
+};
+
+struct efa_ibv_alloc_pd_resp {
+ __u32 comp_mask;
+ __u16 pdn;
+ __u8 reserved_30[2];
+};
+
+struct efa_ibv_create_cq {
+ __u32 comp_mask;
+ __u32 cq_entry_size;
+ __u16 num_sub_cqs;
+ __u8 reserved_50[6];
+};
+
+struct efa_ibv_create_cq_resp {
+ __u32 comp_mask;
+ __u8 reserved_20[4];
+ __aligned_u64 q_mmap_key;
+ __aligned_u64 q_mmap_size;
+ __u16 cq_idx;
+ __u8 reserved_d0[6];
+};
+
+enum {
+ EFA_QP_DRIVER_TYPE_SRD = 0,
+};
+
+struct efa_ibv_create_qp {
+ __u32 comp_mask;
+ __u32 rq_ring_size; /* bytes */
+ __u32 sq_ring_size; /* bytes */
+ __u32 driver_qp_type;
+};
+
+struct efa_ibv_create_qp_resp {
+ __u32 comp_mask;
+ /* the offset inside the page of the rq db */
+ __u32 rq_db_offset;
+ /* the offset inside the page of the sq db */
+ __u32 sq_db_offset;
+ /* the offset inside the page of descriptors buffer */
+ __u32 llq_desc_offset;
+ __aligned_u64 rq_mmap_key;
+ __aligned_u64 rq_mmap_size;
+ __aligned_u64 rq_db_mmap_key;
+ __aligned_u64 sq_db_mmap_key;
+ __aligned_u64 llq_desc_mmap_key;
+ __u16 send_sub_cq_idx;
+ __u16 recv_sub_cq_idx;
+ __u8 reserved_1e0[4];
+};
+
+struct efa_ibv_create_ah_resp {
+ __u32 comp_mask;
+ __u16 efa_address_handle;
+ __u8 reserved_30[2];
+};
+
+struct efa_ibv_ex_query_device_resp {
+ __u32 comp_mask;
+ __u32 max_sq_wr;
+ __u32 max_rq_wr;
+ __u16 max_sq_sge;
+ __u16 max_rq_sge;
+};
+
+#endif /* EFA_ABI_USER_H */
--
2.7.4
