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, 14 insertions, 0 deletions

diff --git a/drivers/net/mlx4/en_port.h b/drivers/net/mlx4/en_port.h
index e6477f12beb5..f6511aa2b7df 100644
--- a/drivers/net/mlx4/en_port.h
+++ b/drivers/net/mlx4/en_port.h
@@ -84,6 +84,20 @@ enum {
         MLX4_MCAST_ENABLE       = 2,
 };
 
+struct mlx4_en_query_port_context {
+        u8 link_up;
+#define MLX4_EN_LINK_UP_MASK    0x80
+        u8 reserved;
+        __be16 mtu;
+        u8 reserved2;
+        u8 link_speed;
+#define MLX4_EN_SPEED_MASK      0x3
+#define MLX4_EN_1G_SPEED        0x2
+        u16 reserved3[5];
+        __be64 mac;
+        u8 transceiver;
+};
+
 
 struct mlx4_en_stat_out_mbox {
         /* Received frames with a length of 64 octets */