RDMA/hns: Fix cq record doorbell enable in kernel

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Upon detecting both kernel and user space support record doorbell,
the kernel needs to enable this capability in hardware by db_en,
and it should take place before cq context configuration in
hns_roce_cq_alloc. Currently, db_en is configured after cq alloc
and db_map_user has similar problem.

Reported-by: Xiping Zhang <zhangxiping3@huawei.com>
Fixes: 9b44703d0a ("RDMA/hns: Support cq record doorbell for the user space")
Signed-off-by: Yixian Liu <liuyixian@huawei.com>
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

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Yixian Liu 2018-03-21 14:11:18 +08:00 • committed by Jason Gunthorpe

parent 761fc376c9

commit e95955773d

1 changed files with 17 additions and 21 deletions

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38

drivers/infiniband/hw/hns/hns_roce_cq.c

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