Commit fa1fd682 authored by Li Zhijian's avatar Li Zhijian Committed by Jason Gunthorpe
Browse files

RDMA/rxe: Implement RC RDMA FLUSH service in requester side 

Implement FLUSH request operation in the requester.

Link: https://lore.kernel.org/r/20221206130201.30986-7-lizhijian@fujitsu.com


Reviewed-by: default avatarZhu Yanjun <zyjzyj2000@gmail.com>
Signed-off-by: default avatarLi Zhijian <lizhijian@fujitsu.com>
Signed-off-by: default avatarJason Gunthorpe <jgg@nvidia.com>
parent 02e9a31c

drivers/infiniband/sw/rxe/rxe_req.c

+14 −1
Original line number Diff line number Diff line
@@ -241,6 +241,9 @@ static int next_opcode_rc(struct rxe_qp *qp, u32 opcode, int fits) 
				IB_OPCODE_RC_SEND_ONLY_WITH_IMMEDIATE :

				IB_OPCODE_RC_SEND_FIRST;



	case IB_WR_FLUSH:

		return IB_OPCODE_RC_FLUSH;



	case IB_WR_RDMA_READ:

		return IB_OPCODE_RC_RDMA_READ_REQUEST;
@@ -425,11 +428,18 @@ static struct sk_buff *init_req_packet(struct rxe_qp *qp, 


	/* init optional headers */

	if (pkt->mask & RXE_RETH_MASK) {

		if (pkt->mask & RXE_FETH_MASK)

			reth_set_rkey(pkt, ibwr->wr.flush.rkey);

		else

			reth_set_rkey(pkt, ibwr->wr.rdma.rkey);

		reth_set_va(pkt, wqe->iova);

		reth_set_len(pkt, wqe->dma.resid);

	}



	/* Fill Flush Extension Transport Header */

	if (pkt->mask & RXE_FETH_MASK)

		feth_init(pkt, ibwr->wr.flush.type, ibwr->wr.flush.level);



	if (pkt->mask & RXE_IMMDT_MASK)

		immdt_set_imm(pkt, ibwr->ex.imm_data);
@@ -488,6 +498,9 @@ static int finish_packet(struct rxe_qp *qp, struct rxe_av *av, 


			memset(pad, 0, bth_pad(pkt));

		}

	} else if (pkt->mask & RXE_FLUSH_MASK) {

		/* oA19-2: shall have no payload. */

		wqe->dma.resid = 0;

	}



	if (pkt->mask & RXE_ATOMIC_WRITE_MASK) {