mlx4: Paravirtualize Node Guids for slaves

[cascardo/linux.git] / drivers / net / ethernet / mellanox / mlx4 / cmd.c

diff --git a/drivers/net/ethernet/mellanox/mlx4/cmd.c b/drivers/net/ethernet/mellanox/mlx4/cmd.c
index 78fdbd6..90774b7 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx4/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx4/cmd.c
@@ -696,6 +696,7 @@ static int mlx4_MAD_IFC_wrapper(struct mlx4_dev *dev, int slave,
        struct ib_smp *outsmp = outbox->buf;
        __be16 *outtab = (__be16 *)(outsmp->data);
        __be32 slave_cap_mask;
+       __be64 slave_node_guid;
        port = vhcr->in_modifier;
 
        if (smp->base_version == 1 &&
@@ -755,6 +756,16 @@ static int mlx4_MAD_IFC_wrapper(struct mlx4_dev *dev, int slave,
                                }
                                return err;
                        }
+                       if (smp->attr_id == IB_SMP_ATTR_NODE_INFO) {
+                               err = mlx4_cmd_box(dev, inbox->dma, outbox->dma,
+                                            vhcr->in_modifier, vhcr->op_modifier,
+                                            vhcr->op, MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE);
+                               if (!err) {
+                                       slave_node_guid =  mlx4_get_slave_node_guid(dev, slave);
+                                       memcpy(outsmp->data + 12, &slave_node_guid, 8);
+                               }
+                               return err;
+                       }
                }
        }
        if (slave != mlx4_master_func_num(dev) &&