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[RFC,v3,5/7] RDMA/rxe: Implement flush completion

Message ID 20220315101845.4166983-6-lizhijian@fujitsu.com (mailing list archive)
State RFC
Delegated to: Jason Gunthorpe
Headers show
Series RDMA/rxe: Add RDMA FLUSH operation | expand

Commit Message

Li Zhijian March 15, 2022, 10:18 a.m. UTC
Introduce a new IB_UVERBS_WC_FLUSH code to tell userspace a FLUSH
completion.

Signed-off-by: Li Zhijian <lizhijian@fujitsu.com>
---
 drivers/infiniband/sw/rxe/rxe_comp.c | 4 +++-
 include/rdma/ib_verbs.h              | 1 +
 include/uapi/rdma/ib_user_verbs.h    | 1 +
 3 files changed, 5 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/infiniband/sw/rxe/rxe_comp.c b/drivers/infiniband/sw/rxe/rxe_comp.c
index f363fe3fa414..e5b9d07eba93 100644
--- a/drivers/infiniband/sw/rxe/rxe_comp.c
+++ b/drivers/infiniband/sw/rxe/rxe_comp.c
@@ -104,6 +104,7 @@  static enum ib_wc_opcode wr_to_wc_opcode(enum ib_wr_opcode opcode)
 	case IB_WR_LOCAL_INV:			return IB_WC_LOCAL_INV;
 	case IB_WR_REG_MR:			return IB_WC_REG_MR;
 	case IB_WR_BIND_MW:			return IB_WC_BIND_MW;
+	case IB_WR_RDMA_FLUSH:			return IB_WC_RDMA_FLUSH;
 
 	default:
 		return 0xff;
@@ -261,7 +262,8 @@  static inline enum comp_state check_ack(struct rxe_qp *qp,
 		 */
 	case IB_OPCODE_RC_RDMA_READ_RESPONSE_MIDDLE:
 		if (wqe->wr.opcode != IB_WR_RDMA_READ &&
-		    wqe->wr.opcode != IB_WR_RDMA_READ_WITH_INV) {
+		    wqe->wr.opcode != IB_WR_RDMA_READ_WITH_INV &&
+		    wqe->wr.opcode != IB_WR_RDMA_FLUSH) {
 			wqe->status = IB_WC_FATAL_ERR;
 			return COMPST_ERROR;
 		}
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 8f04e45b56aa..a73c746759b0 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -965,6 +965,7 @@  const char *__attribute_const__ ib_wc_status_msg(enum ib_wc_status status);
 enum ib_wc_opcode {
 	IB_WC_SEND = IB_UVERBS_WC_SEND,
 	IB_WC_RDMA_WRITE = IB_UVERBS_WC_RDMA_WRITE,
+	IB_WC_RDMA_FLUSH = IB_UVERBS_WC_FLUSH,
 	IB_WC_RDMA_READ = IB_UVERBS_WC_RDMA_READ,
 	IB_WC_COMP_SWAP = IB_UVERBS_WC_COMP_SWAP,
 	IB_WC_FETCH_ADD = IB_UVERBS_WC_FETCH_ADD,
diff --git a/include/uapi/rdma/ib_user_verbs.h b/include/uapi/rdma/ib_user_verbs.h
index 69a04bb828a0..a8ba12aa04e6 100644
--- a/include/uapi/rdma/ib_user_verbs.h
+++ b/include/uapi/rdma/ib_user_verbs.h
@@ -476,6 +476,7 @@  enum ib_uverbs_wc_opcode {
 	IB_UVERBS_WC_BIND_MW = 5,
 	IB_UVERBS_WC_LOCAL_INV = 6,
 	IB_UVERBS_WC_TSO = 7,
+	IB_UVERBS_WC_FLUSH = 8,
 };
 
 struct ib_uverbs_wc {