RDMA/hns: Support rq record doorbell for the user space

[mirror_ubuntu-bionic-kernel.git] / drivers / infiniband / hw / hns / hns_roce_main.c

diff --git a/drivers/infiniband/hw/hns/hns_roce_main.c b/drivers/infiniband/hw/hns/hns_roce_main.c
index 830243e89176ce61787ce499fb648c9345c113c1..3d735892c9507da99603c82b81e003014fecb43a 100644 (file)
--- a/drivers/infiniband/hw/hns/hns_roce_main.c
+++ b/drivers/infiniband/hw/hns/hns_roce_main.c
@@ -350,6 +350,11 @@ static struct ib_ucontext *hns_roce_alloc_ucontext(struct ib_device *ib_dev,
        if (ret)
                goto error_fail_uar_alloc;
 
+       if (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_RECORD_DB) {
+               INIT_LIST_HEAD(&context->page_list);
+               mutex_init(&context->page_mutex);
+       }
+
        ret = ib_copy_to_udata(udata, &resp, sizeof(resp));
        if (ret)
                goto error_fail_copy_to_udata;