linux-kernel - [RFC PATCH v2 8/9] RDMA/rxe: Enable RDMA FLUSH capability for rxe device

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Date:   Tue, 25 Jan 2022 16:50:40 +0800
From:   Li Zhijian <lizhijian@...fujitsu.com>
To:     <linux-rdma@...r.kernel.org>, <zyjzyj2000@...il.com>,
        <jgg@...pe.ca>, <aharonl@...dia.com>, <leon@...nel.org>,
        <tom@...pey.com>, <tomasz.gromadzki@...el.com>
CC:     <linux-kernel@...r.kernel.org>, <mbloch@...dia.com>,
        <liangwenpeng@...wei.com>, <yangx.jy@...itsu.com>,
        <y-goto@...itsu.com>, <rpearsonhpe@...il.com>,
        <dan.j.williams@...el.com>, Li Zhijian <lizhijian@...fujitsu.com>
Subject: [RFC PATCH v2 8/9] RDMA/rxe: Enable RDMA FLUSH capability for rxe device

A19.4.3.1 HCA RESOURCES
This Annex introduces the following new HCA attributes:
• Ability to support Memory Placement Extensions
a) Ability to support FLUSH
 i) Ability to support FLUSH with PLT Global Visibility
 ii) Ability to support FLUSH with PLT Persistence

Now we are ready to enable RDMA FLUSH capability for RXE.

Signed-off-by: Li Zhijian <lizhijian@...fujitsu.com>
---
V2: adjust patch's order. move it here from [04/10]
    update comments, add referring to SPEC
---
 drivers/infiniband/sw/rxe/rxe_param.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/infiniband/sw/rxe/rxe_param.h b/drivers/infiniband/sw/rxe/rxe_param.h
index 918270e34a35..281e1977b147 100644
--- a/drivers/infiniband/sw/rxe/rxe_param.h
+++ b/drivers/infiniband/sw/rxe/rxe_param.h
@@ -53,7 +53,9 @@ enum rxe_device_param {
 					| IB_DEVICE_ALLOW_USER_UNREG
 					| IB_DEVICE_MEM_WINDOW
 					| IB_DEVICE_MEM_WINDOW_TYPE_2A
-					| IB_DEVICE_MEM_WINDOW_TYPE_2B,
+					| IB_DEVICE_MEM_WINDOW_TYPE_2B
+					| IB_DEVICE_PLT_GLOBAL_VISIBILITY
+					| IB_DEVICE_PLT_PERSISTENT,
 	RXE_MAX_SGE			= 32,
 	RXE_MAX_WQE_SIZE		= sizeof(struct rxe_send_wqe) +
 					  sizeof(struct ib_sge) * RXE_MAX_SGE,
-- 
2.31.1