net/mlx4_core: Add ethernet backplane autoneg device capability

[cascardo/linux.git] / drivers / net / ethernet / mellanox / mlx4 / fw.c

diff --git a/drivers/net/ethernet/mellanox/mlx4/fw.c b/drivers/net/ethernet/mellanox/mlx4/fw.c
index 6fd9b85..72289ef 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx4/fw.c
+++ b/drivers/net/ethernet/mellanox/mlx4/fw.c
@@ -140,7 +140,8 @@ static void dump_dev_cap_flags2(struct mlx4_dev *dev, u64 flags)
                [11] = "MAD DEMUX (Secure-Host) support",
                [12] = "Large cache line (>64B) CQE stride support",
                [13] = "Large cache line (>64B) EQE stride support",
-               [14] = "Ethernet protocol control support"
+               [14] = "Ethernet protocol control support",
+               [15] = "Ethernet Backplane autoneg support"
        };
        int i;
 
@@ -575,6 +576,7 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
 #define QUERY_DEV_CAP_BMME_FLAGS_OFFSET                0x94
 #define QUERY_DEV_CAP_RSVD_LKEY_OFFSET         0x98
 #define QUERY_DEV_CAP_MAX_ICM_SZ_OFFSET                0xa0
+#define QUERY_DEV_CAP_ETH_BACKPL_OFFSET                0x9c
 #define QUERY_DEV_CAP_FW_REASSIGN_MAC          0x9d
 #define QUERY_DEV_CAP_VXLAN                    0x9e
 #define QUERY_DEV_CAP_MAD_DEMUX_OFFSET         0xb0
@@ -749,6 +751,9 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
                 QUERY_DEV_CAP_BMME_FLAGS_OFFSET);
        MLX4_GET(dev_cap->reserved_lkey, outbox,
                 QUERY_DEV_CAP_RSVD_LKEY_OFFSET);
+       MLX4_GET(field32, outbox, QUERY_DEV_CAP_ETH_BACKPL_OFFSET);
+       if (field32 & (1 << 0))
+               dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_ETH_BACKPL_AN_REP;
        MLX4_GET(field, outbox, QUERY_DEV_CAP_FW_REASSIGN_MAC);
        if (field & 1<<6)
                dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_REASSIGN_MAC_EN;