linux-kernel - [PATCH V2 for-next 3/9] IB/hns: Fix the value of device_cap

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Date:   Tue, 13 Sep 2016 20:49:24 +0100
From:   Salil Mehta <salil.mehta@...wei.com>
To:     <dledford@...hat.com>
CC:     <salil.mehta@...wei.com>, <xavier.huwei@...wei.com>,
        <oulijun@...wei.com>, <yisen.zhuang@...wei.com>,
        <mehta.salil.lnk@...il.com>, <xuwei5@...ilicon.com>,
        <linux-rdma@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linuxarm@...wei.com>
Subject: [PATCH V2 for-next 3/9] IB/hns: Fix the value of device_cap_flags

From: Lijun Ou <oulijun@...wei.com>

In the latest IB core version, it has some known issues
with memory registration using the local_dma_lkey.
Thus RoCE don't expose support for it, and remove
device->local_dma_lkey which is introduced to working systems.

Signed-off-by: Lijun Ou <oulijun@...wei.com>
Reviewed-by: Wei Hu <xavier.huwei@...wei.com>
Signed-off-by: Salil Mehta <salil.mehta@...wei.com>
---
 drivers/infiniband/hw/hns/hns_roce_main.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/infiniband/hw/hns/hns_roce_main.c b/drivers/infiniband/hw/hns/hns_roce_main.c
index f0700f4..a9960ba 100644
--- a/drivers/infiniband/hw/hns/hns_roce_main.c
+++ b/drivers/infiniband/hw/hns/hns_roce_main.c
@@ -355,8 +355,7 @@ static int hns_roce_query_device(struct ib_device *ib_dev,
 	props->max_qp = hr_dev->caps.num_qps;
 	props->max_qp_wr = hr_dev->caps.max_wqes;
 	props->device_cap_flags = IB_DEVICE_PORT_ACTIVE_EVENT |
-				  IB_DEVICE_RC_RNR_NAK_GEN |
-				  IB_DEVICE_LOCAL_DMA_LKEY;
+				  IB_DEVICE_RC_RNR_NAK_GEN;
 	props->max_sge = hr_dev->caps.max_sq_sg;
 	props->max_sge_rd = 1;
 	props->max_cq = hr_dev->caps.num_cqs;
-- 
1.9.1