net/mlx4_en: Support ndo_get_vf_stats

[karo-tx-linux.git] / drivers / net / ethernet / mellanox / mlx4 / cmd.c

diff --git a/drivers/net/ethernet/mellanox/mlx4/cmd.c b/drivers/net/ethernet/mellanox/mlx4/cmd.c
index 44b8f7715ade5952ac26bebd0df72cbfdad6392e..82040137d7d9723a0ab027fe72bc25a3063368b3 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx4/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx4/cmd.c
@@ -3223,6 +3223,36 @@ if_stat_out:
 }
 EXPORT_SYMBOL_GPL(mlx4_get_counter_stats);
 
+int mlx4_get_vf_stats(struct mlx4_dev *dev, int port, int vf_idx,
+                     struct ifla_vf_stats *vf_stats)
+{
+       struct mlx4_counter tmp_vf_stats;
+       int slave;
+       int err = 0;
+
+       if (!vf_stats)
+               return -EINVAL;
+
+       if (!mlx4_is_master(dev))
+               return -EPROTONOSUPPORT;
+
+       slave = mlx4_get_slave_indx(dev, vf_idx);
+       if (slave < 0)
+               return -EINVAL;
+
+       port = mlx4_slaves_closest_port(dev, slave, port);
+       err = mlx4_calc_vf_counters(dev, slave, port, &tmp_vf_stats);
+       if (!err && tmp_vf_stats.counter_mode == 0) {
+               vf_stats->rx_packets = be64_to_cpu(tmp_vf_stats.rx_frames);
+               vf_stats->tx_packets = be64_to_cpu(tmp_vf_stats.tx_frames);
+               vf_stats->rx_bytes = be64_to_cpu(tmp_vf_stats.rx_bytes);
+               vf_stats->tx_bytes = be64_to_cpu(tmp_vf_stats.tx_bytes);
+       }
+
+       return err;
+}
+EXPORT_SYMBOL_GPL(mlx4_get_vf_stats);
+
 int mlx4_vf_smi_enabled(struct mlx4_dev *dev, int slave, int port)
 {
        struct mlx4_priv *priv = mlx4_priv(dev);