From: Li Zhijian Date: Tue, 6 Dec 2022 13:01:59 +0000 (+0800) Subject: RDMA/rxe: Implement flush completion X-Git-Tag: v6.2-rc1~61^2~6 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=70aad902ce8aeb094dd3ef14988a652f24cce7c8;p=linux-2.6-block.git RDMA/rxe: Implement flush completion Per IBA SPEC, FLUSH will ack in rdma read response with 0 length. Use IB_WC_FLUSH (aka IB_UVERBS_WC_FLUSH) code to tell userspace a FLUSH completion. Link: https://lore.kernel.org/r/20221206130201.30986-9-lizhijian@fujitsu.com Reviewed-by: Zhu Yanjun Signed-off-by: Li Zhijian Signed-off-by: Jason Gunthorpe --- diff --git a/drivers/infiniband/sw/rxe/rxe_comp.c b/drivers/infiniband/sw/rxe/rxe_comp.c index 1c525325e271..20737fec392b 100644 --- a/drivers/infiniband/sw/rxe/rxe_comp.c +++ b/drivers/infiniband/sw/rxe/rxe_comp.c @@ -105,6 +105,7 @@ static enum ib_wc_opcode wr_to_wc_opcode(enum ib_wr_opcode opcode) case IB_WR_REG_MR: return IB_WC_REG_MR; case IB_WR_BIND_MW: return IB_WC_BIND_MW; case IB_WR_ATOMIC_WRITE: return IB_WC_ATOMIC_WRITE; + case IB_WR_FLUSH: return IB_WC_FLUSH; default: return 0xff; @@ -278,7 +279,8 @@ 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_FLUSH) { wqe->status = IB_WC_FATAL_ERR; return COMPST_ERROR; }