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From: Li Zhijian <lizhijian@fujitsu.com>
To: Bob Pearson <rpearsonhpe@gmail.com>,
	Leon Romanovsky <leon@kernel.org>, Jason Gunthorpe <jgg@ziepe.ca>,
	linux-rdma@vger.kernel.org
Cc: Zhu Yanjun <zyjzyj2000@gmail.com>,
	yangx.jy@fujitsu.com, y-goto@fujitsu.com, mbloch@nvidia.com,
	tom@talpey.com, tomasz.gromadzki@intel.com,
	dan.j.williams@intel.com, linux-kernel@vger.kernel.org,
	Li Zhijian <lizhijian@fujitsu.com>
Subject: [for-next PATCH 08/10] RDMA/rxe: Implement flush completion
Date: Tue,  6 Dec 2022 21:01:59 +0800	[thread overview]
Message-ID: <20221206130201.30986-9-lizhijian@fujitsu.com> (raw)
In-Reply-To: <20221206130201.30986-1-lizhijian@fujitsu.com>

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.

Reviewed-by: Zhu Yanjun <zyjzyj2000@gmail.com>
Signed-off-by: Li Zhijian <lizhijian@fujitsu.com>
---
 drivers/infiniband/sw/rxe/rxe_comp.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

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;
 		}
-- 
2.31.1


  parent reply	other threads:[~2022-12-06 13:03 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-12-06 13:01 [for-next PATCH 00/10] RDMA/rxe: Add RDMA FLUSH operation Li Zhijian
2022-12-06 13:01 ` [for-next PATCH 01/10] RDMA: Extend RDMA user ABI to support flush Li Zhijian
2022-12-06 13:01 ` [for-next PATCH 02/10] RDMA: Extend RDMA kernel verbs " Li Zhijian
2022-12-06 13:01 ` [for-next PATCH 03/10] RDMA/rxe: Extend rxe user " Li Zhijian
2022-12-06 13:01 ` [for-next PATCH 04/10] RDMA/rxe: Allow registering persistent flag for pmem MR only Li Zhijian
2022-12-06 13:01 ` [for-next PATCH 05/10] RDMA/rxe: Extend rxe packet format to support flush Li Zhijian
2022-12-06 13:01 ` [for-next PATCH 06/10] RDMA/rxe: Implement RC RDMA FLUSH service in requester side Li Zhijian
2022-12-06 13:01 ` [for-next PATCH 07/10] RDMA/rxe: Implement flush execution in responder side Li Zhijian
2022-12-06 13:01 ` Li Zhijian [this message]
2022-12-06 13:02 ` [for-next PATCH 09/10] RDMA/cm: Make QP FLUSHABLE for supported device Li Zhijian
2022-12-06 13:02 ` [for-next PATCH 10/10] RDMA/rxe: Enable RDMA FLUSH capability for rxe device Li Zhijian
2022-12-09 23:43 ` [for-next PATCH 00/10] RDMA/rxe: Add RDMA FLUSH operation Jason Gunthorpe

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