RDMA/rxe: Extend rxe user ABI to support atomic write

Define an atomic_wr array to store 8-byte value.

Link: https://lore.kernel.org/r/1669905432-14-4-git-send-email-yangx.jy@fujitsu.com
Signed-off-by: Xiao Yang <yangx.jy@fujitsu.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

diff --git a/include/uapi/rdma/rdma_user_rxe.h b/include/uapi/rdma/rdma_user_rxe.h
index 73f679d..d20d1ec 100644 (file)
--- a/include/uapi/rdma/rdma_user_rxe.h
+++ b/include/uapi/rdma/rdma_user_rxe.h
@@ -146,6 +146,7 @@ struct rxe_dma_info {
        __u32                   reserved;
        union {
                __DECLARE_FLEX_ARRAY(__u8, inline_data);
+               __DECLARE_FLEX_ARRAY(__u8, atomic_wr);
                __DECLARE_FLEX_ARRAY(struct rxe_sge, sge);
        };
 };