mlx4_core: Read extended capabilities into the flags field

Query another dword containing up to 32 extended device capabilities
and merge it into struct mlx4_caps.flags.  Update the code that
handles the current extended device capabilities (e.g UDP RSS, WoL,
vep steering, etc) to use the extended device cap flags field instead
of a field per extended capability.  Initial patch done by Eli Cohen
<eli@mellanox.co.il>.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.co.il>
Signed-off-by: Roland Dreier <roland@purestorage.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/net/mlx4/en_selftest.c b/drivers/net/mlx4/en_selftest.c
index 191a8dcd8a93..9fdbcecd499d 100644
--- a/drivers/net/mlx4/en_selftest.c
+++ b/drivers/net/mlx4/en_selftest.c
@@ -159,7 +159,8 @@ retry_tx:
                                 goto retry_tx;
                 }
 
-                if (priv->mdev->dev->caps.loopback_support){
+                if (priv->mdev->dev->caps.flags &
+                                        MLX4_DEV_CAP_FLAG_UC_LOOPBACK) {
                         buf[3] = mlx4_en_test_registers(priv);
                         buf[4] = mlx4_en_test_loopback(priv);
                 }