mlx4: Sensing link type at device initialization

When bringing the port up, performing a SENSE_PORT command
To try and check to which physical link type (IB or Ethernet) the physical
port is connected.
In case there is no valid link partner, the port will come up as its
supported default.

Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 9 insertions, 2 deletions

diff --git a/drivers/net/mlx4/main.c b/drivers/net/mlx4/main.c
index 62fa7eec5f0c..3814fc9b1145 100644
--- a/drivers/net/mlx4/main.c
+++ b/drivers/net/mlx4/main.c
@@ -944,6 +944,10 @@ static int mlx4_setup_hca(struct mlx4_dev *dev)
         }
 
         for (port = 1; port <= dev->caps.num_ports; port++) {
+                enum mlx4_port_type port_type = 0;
+                mlx4_SENSE_PORT(dev, port, &port_type);
+                if (port_type)
+                        dev->caps.port_type[port] = port_type;
                 ib_port_default_caps = 0;
                 err = mlx4_get_port_ib_caps(dev, port, &ib_port_default_caps);
                 if (err)
@@ -958,6 +962,7 @@ static int mlx4_setup_hca(struct mlx4_dev *dev)
                         goto err_mcg_table_free;
                 }
         }
+        mlx4_set_port_mask(dev);
 
         return 0;
 
diff --git a/drivers/net/mlx4/mlx4.h b/drivers/net/mlx4/mlx4.h
index c1e0e5f1bcdb..dd7d745fbab4 100644
--- a/drivers/net/mlx4/mlx4.h
+++ b/drivers/net/mlx4/mlx4.h
@@ -431,6 +431,8 @@ void mlx4_srq_event(struct mlx4_dev *dev, u32 srqn, int event_type);
 
 void mlx4_handle_catas_err(struct mlx4_dev *dev);
 
+int mlx4_SENSE_PORT(struct mlx4_dev *dev, int port,
+                    enum mlx4_port_type *type);
 void mlx4_do_sense_ports(struct mlx4_dev *dev,
                          enum mlx4_port_type *stype,
                          enum mlx4_port_type *defaults);
diff --git a/drivers/net/mlx4/sense.c b/drivers/net/mlx4/sense.c
index 015fbe785c13..e2337a7411d9 100644
--- a/drivers/net/mlx4/sense.c
+++ b/drivers/net/mlx4/sense.c
@@ -38,8 +38,8 @@
 
 #include "mlx4.h"
 
-static int mlx4_SENSE_PORT(struct mlx4_dev *dev, int port,
-                           enum mlx4_port_type *type)
+int mlx4_SENSE_PORT(struct mlx4_dev *dev, int port,
+                    enum mlx4_port_type *type)
 {
         u64 out_param;
         int err = 0;