linux-kernel - [PATCH RFC 2/2] RDMA/rxe: set RXE_PAGE_SIZE_CAP to PAGE

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Date:   Fri, 27 Oct 2023 13:41:54 +0800
From:   Li Zhijian <lizhijian@...itsu.com>
To:     zyjzyj2000@...il.com, jgg@...pe.ca, leon@...nel.org,
        linux-rdma@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, rpearsonhpe@...il.com,
        matsuda-daisuke@...itsu.com, bvanassche@....org,
        Li Zhijian <lizhijian@...itsu.com>
Subject: [PATCH RFC 2/2] RDMA/rxe: set RXE_PAGE_SIZE_CAP to PAGE_SIZE

RXE_PAGE_SIZE_CAP means the MR page size supported by RXE. However
in current RXE implementation, only PAGE_SIZE MR works well.
So change it to PAGE_SIZE only.

ULPs such as SRP calculating the page size according to this attribute get
worked again with this change.

Signed-off-by: Li Zhijian <lizhijian@...itsu.com>
---
 drivers/infiniband/sw/rxe/rxe_param.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/infiniband/sw/rxe/rxe_param.h b/drivers/infiniband/sw/rxe/rxe_param.h
index d2f57ead78ad..b1cf1e1c0ce1 100644
--- a/drivers/infiniband/sw/rxe/rxe_param.h
+++ b/drivers/infiniband/sw/rxe/rxe_param.h
@@ -38,7 +38,7 @@ static inline enum ib_mtu eth_mtu_int_to_enum(int mtu)
 /* default/initial rxe device parameter settings */
 enum rxe_device_param {
 	RXE_MAX_MR_SIZE			= -1ull,
-	RXE_PAGE_SIZE_CAP		= 0xfffff000,
+	RXE_PAGE_SIZE_CAP		= PAGE_SIZE,
 	RXE_MAX_QP_WR			= DEFAULT_MAX_VALUE,
 	RXE_DEVICE_CAP_FLAGS		= IB_DEVICE_BAD_PKEY_CNTR
 					| IB_DEVICE_BAD_QKEY_CNTR
-- 
2.41.0