mlx4_en: Added self diagnostics test implementation

The selftest includes 5 features:
1. Interrupt test: Executing commands and receiving command completion
   on all our interrupt vectors.
2. Link test: Verifying we are connected to valid link partner.
3. Speed test: Check that we negotiated link speed correctly.
4. Registers test: Activate HW health check command.
5. Loopback test: Send a packet on loopback interface and catch it on RX side.

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

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/net/mlx4/main.c b/drivers/net/mlx4/main.c
index 5102ab1ac561..7390cdb19414 100644
--- a/drivers/net/mlx4/main.c
+++ b/drivers/net/mlx4/main.c
@@ -221,6 +221,7 @@ static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
         dev->caps.bmme_flags         = dev_cap->bmme_flags;
         dev->caps.reserved_lkey      = dev_cap->reserved_lkey;
         dev->caps.stat_rate_support  = dev_cap->stat_rate_support;
+        dev->caps.loopback_support   = dev_cap->loopback_support;
         dev->caps.max_gso_sz         = dev_cap->max_gso_sz;
 
         dev->caps.log_num_macs  = log_num_mac;