33 lines
1.2 KiB
Diff
33 lines
1.2 KiB
Diff
From 0adf3f4bef9346c9cd3d1ecb7af4ee8f27d3b48a Mon Sep 17 00:00:00 2001
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From: Lijun Ou <oulijun@huawei.com>
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Date: Wed, 12 Dec 2018 17:49:07 +0800
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Subject: [PATCH 28/31] RDMA/hns: Bugfix for the scene without receiver queue
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Origin: https://git.kernel.org/linus/4d103905eb1e4f14cb62fcf962c9d35da7005dea
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In some application scenario, the user could not have receive queue when
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run rdma write or read operation.
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Signed-off-by: Lijun Ou <oulijun@huawei.com>
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Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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---
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drivers/infiniband/hw/hns/hns_roce_qp.c | 3 ++-
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1 file changed, 2 insertions(+), 1 deletion(-)
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diff --git a/drivers/infiniband/hw/hns/hns_roce_qp.c b/drivers/infiniband/hw/hns/hns_roce_qp.c
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index efb7e961ca65..de1676e25828 100644
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--- a/drivers/infiniband/hw/hns/hns_roce_qp.c
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+++ b/drivers/infiniband/hw/hns/hns_roce_qp.c
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@@ -503,7 +503,8 @@ static int hns_roce_qp_has_sq(struct ib_qp_init_attr *attr)
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static int hns_roce_qp_has_rq(struct ib_qp_init_attr *attr)
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{
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if (attr->qp_type == IB_QPT_XRC_INI ||
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- attr->qp_type == IB_QPT_XRC_TGT || attr->srq)
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+ attr->qp_type == IB_QPT_XRC_TGT || attr->srq ||
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+ !attr->cap.max_recv_wr)
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return 0;
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return 1;
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--
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2.20.1
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