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Message-Id: <20221116081951.32750-9-lizhijian@fujitsu.com>
Date: Wed, 16 Nov 2022 16:19:49 +0800
From: Li Zhijian <lizhijian@...itsu.com>
To: zyjzyj2000@...il.com, jgg@...pe.ca, leon@...nel.org,
Bob Pearson <rpearsonhpe@...il.com>, linux-rdma@...r.kernel.org
Cc: Mark Bloch <mbloch@...dia.com>, Tom Talpey <tom@...pey.com>,
tomasz.gromadzki@...el.com,
Dan Williams <dan.j.williams@...el.com>,
Xiao Yang <yangx.jy@...itsu.com>, y-goto@...itsu.com,
linux-kernel@...r.kernel.org, Li Zhijian <lizhijian@...itsu.com>
Subject: [for-next PATCH v6 08/10] 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.
Reviewed-by: Zhu Yanjun <zyjzyj2000@...il.com>
Signed-off-by: Li Zhijian <lizhijian@...itsu.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 66f392810c86..12252ac6b5c2 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_FLUSH: return IB_WC_FLUSH;
default:
return 0xff;
@@ -274,7 +275,8 @@ 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
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