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[for-next,03/10] RDMA/rxe: Extend rxe user ABI to support flush

Message ID 20221206130201.30986-4-lizhijian@fujitsu.com
State New
Headers
Series RDMA/rxe: Add RDMA FLUSH operation |

Commit Message

Zhijian Li (Fujitsu) Dec. 6, 2022, 1:01 p.m. UTC 
  This commit extends the rxe user ABI to support the flush
operation defined in IBA A19.4.1. These changes are
backward compatible with the existing rxe user ABI.

The user API request a flush by filling this structure.

Reviewed-by: Zhu Yanjun <zyjzyj2000@gmail.com>
Signed-off-by: Li Zhijian <lizhijian@fujitsu.com>
---
V5: new patch split scheme, suggested by Bob
---
 include/uapi/rdma/rdma_user_rxe.h | 7 +++++++
 1 file changed, 7 insertions(+)
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Patch

diff --git a/include/uapi/rdma/rdma_user_rxe.h b/include/uapi/rdma/rdma_user_rxe.h
index d20d1ecf046f..bb092fccb813 100644
--- a/include/uapi/rdma/rdma_user_rxe.h
+++ b/include/uapi/rdma/rdma_user_rxe.h
@@ -82,6 +82,13 @@  struct rxe_send_wr {
 		__u32		invalidate_rkey;
 	} ex;
 	union {
+		struct {
+			__aligned_u64 remote_addr;
+			__u32	length;
+			__u32	rkey;
+			__u8	type;
+			__u8	level;
+		} flush;
 		struct {
 			__aligned_u64 remote_addr;
 			__u32	rkey;