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RDMA/hns: Intercept illegal RDMA operation when use inline data
author
oulijun
<oulijun@huawei.com>
Thu, 26 Apr 2018 06:46:16 +0000
(14:46 +0800)
committer
Doug Ledford
<dledford@redhat.com>
Fri, 27 Apr 2018 18:20:47 +0000
(14:20 -0400)
RDMA read operation is not supported inline data. If user cofigures
issue a RDMA read and use inline data, it will happen a hardware
error.
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
drivers/infiniband/hw/hns/hns_roce_hw_v2.c
patch
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diff --git
a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
index
8b84ab7
..
aa5f9b3
100644
(file)
--- a/
drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/
drivers/infiniband/hw/hns/hns_roce_hw_v2.c
@@
-71,6
+71,11
@@
static int set_rwqe_data_seg(struct ib_qp *ibqp, struct ib_send_wr *wr,
return -EINVAL;
}
+ if (wr->opcode == IB_WR_RDMA_READ) {
+ dev_err(hr_dev->dev, "Not support inline data!\n");
+ return -EINVAL;
+ }
+
for (i = 0; i < wr->num_sge; i++) {
memcpy(wqe, ((void *)wr->sg_list[i].addr),
wr->sg_list[i].length);