IB/hns: Add & initialize "node_guid" parameter for RDMA CM

[karo-tx-linux.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 39e69c31c5f2586faacf16ce021d842050aeeebe..f0700f4ca2c34265092c66b7c7860d2d14f90549 100644 (file)
--- a/drivers/infiniband/hw/hns/hns_roce_main.c
+++ b/drivers/infiniband/hw/hns/hns_roce_main.c
@@ -797,6 +797,15 @@ static int hns_roce_get_cfg(struct hns_roce_dev *hr_dev)
        if (IS_ERR(hr_dev->reg_base))
                return PTR_ERR(hr_dev->reg_base);
 
+       /* read the node_guid of IB device from the DT or ACPI */
+       ret = device_property_read_u8_array(dev, "node-guid",
+                                           (u8 *)&hr_dev->ib_dev.node_guid,
+                                           GUID_LEN);
+       if (ret) {
+               dev_err(dev, "couldn't get node_guid from DT or ACPI!\n");
+               return ret;
+       }
+
        /* get the RoCE associated ethernet ports or netdevices */
        for (i = 0; i < HNS_ROCE_MAX_PORTS; i++) {
                if (dev_of_node(dev)) {