IB/mlx4: Do not allow APM under RoCE

[linux-2.6-block.git] / drivers / infiniband / hw / mlx4 / main.c

diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
index 6ad7f7a0e4646b663e7554ff800ee94391ccb924..d57563b9d1fb56f15b846bb2cc05c49172a5604d 100644 (file)
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -120,6 +120,17 @@ static int check_flow_steering_support(struct mlx4_dev *dev)
        return dmfs;
 }
 
+static int num_ib_ports(struct mlx4_dev *dev)
+{
+       int ib_ports = 0;
+       int i;
+
+       mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB)
+               ib_ports++;
+
+       return ib_ports;
+}
+
 static int mlx4_ib_query_device(struct ib_device *ibdev,
                                struct ib_device_attr *props)
 {
@@ -127,6 +138,7 @@ static int mlx4_ib_query_device(struct ib_device *ibdev,
        struct ib_smp *in_mad  = NULL;
        struct ib_smp *out_mad = NULL;
        int err = -ENOMEM;
+       int have_ib_ports;
 
        in_mad  = kzalloc(sizeof *in_mad, GFP_KERNEL);
        out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
@@ -143,6 +155,8 @@ static int mlx4_ib_query_device(struct ib_device *ibdev,
 
        memset(props, 0, sizeof *props);
 
+       have_ib_ports = num_ib_ports(dev->dev);
+
        props->fw_ver = dev->dev->caps.fw_ver;
        props->device_cap_flags    = IB_DEVICE_CHANGE_PHY_PORT |
                IB_DEVICE_PORT_ACTIVE_EVENT             |
@@ -153,7 +167,7 @@ static int mlx4_ib_query_device(struct ib_device *ibdev,
                props->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR;
        if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_QKEY_CNTR)
                props->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR;
-       if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_APM)
+       if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_APM && have_ib_ports)
                props->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG;
        if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UD_AV_PORT)
                props->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE;