RDMA/hns: Append SCC context to the raw dump of QPC

[linux-2.6-microblaze.git] / drivers / infiniband / hw / hns / hns_roce_restrack.c

diff --git a/drivers/infiniband/hw/hns/hns_roce_restrack.c b/drivers/infiniband/hw/hns/hns_roce_restrack.c
index f7f3c4c..356d988 100644 (file)
--- a/drivers/infiniband/hw/hns/hns_roce_restrack.c
+++ b/drivers/infiniband/hw/hns/hns_roce_restrack.c
@@ -97,16 +97,33 @@ int hns_roce_fill_res_qp_entry_raw(struct sk_buff *msg, struct ib_qp *ib_qp)
 {
        struct hns_roce_dev *hr_dev = to_hr_dev(ib_qp->device);
        struct hns_roce_qp *hr_qp = to_hr_qp(ib_qp);
-       struct hns_roce_v2_qp_context context;
+       struct hns_roce_full_qp_ctx {
+               struct hns_roce_v2_qp_context qpc;
+               struct hns_roce_v2_scc_context sccc;
+       } context = {};
        int ret;
 
        if (!hr_dev->hw->query_qpc)
                return -EINVAL;
 
-       ret = hr_dev->hw->query_qpc(hr_dev, hr_qp->qpn, &context);
+       ret = hr_dev->hw->query_qpc(hr_dev, hr_qp->qpn, &context.qpc);
        if (ret)
-               return -EINVAL;
+               return ret;
+
+       /* If SCC is disabled or the query fails, the queried SCCC will
+        * be all 0.
+        */
+       if (!(hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_QP_FLOW_CTRL) ||
+           !hr_dev->hw->query_sccc)
+               goto out;
+
+       ret = hr_dev->hw->query_sccc(hr_dev, hr_qp->qpn, &context.sccc);
+       if (ret)
+               ibdev_warn_ratelimited(&hr_dev->ib_dev,
+                                      "failed to query SCCC, ret = %d.\n",
+                                      ret);
 
+out:
        ret = nla_put(msg, RDMA_NLDEV_ATTR_RES_RAW, sizeof(context), &context);
 
        return ret;