net/mlx5: E-Switch, Introduce get vf statistics

Add support to get VF statistics using query vport
counter command.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
index 8fb66c0..d8939e5 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
@@ -1213,3 +1213,70 @@ int mlx5_eswitch_set_vport_vlan(struct mlx5_eswitch *esw,
 
        return modify_esw_vport_cvlan(esw->dev, vport, vlan, qos, set);
 }
+
+int mlx5_eswitch_get_vport_stats(struct mlx5_eswitch *esw,
+                                int vport,
+                                struct ifla_vf_stats *vf_stats)
+{
+       int outlen = MLX5_ST_SZ_BYTES(query_vport_counter_out);
+       u32 in[MLX5_ST_SZ_DW(query_vport_counter_in)];
+       int err = 0;
+       u32 *out;
+
+       if (!ESW_ALLOWED(esw))
+               return -EPERM;
+       if (!LEGAL_VPORT(esw, vport))
+               return -EINVAL;
+
+       out = mlx5_vzalloc(outlen);
+       if (!out)
+               return -ENOMEM;
+
+       memset(in, 0, sizeof(in));
+
+       MLX5_SET(query_vport_counter_in, in, opcode,
+                MLX5_CMD_OP_QUERY_VPORT_COUNTER);
+       MLX5_SET(query_vport_counter_in, in, op_mod, 0);
+       MLX5_SET(query_vport_counter_in, in, vport_number, vport);
+       if (vport)
+               MLX5_SET(query_vport_counter_in, in, other_vport, 1);
+
+       memset(out, 0, outlen);
+       err = mlx5_cmd_exec(esw->dev, in, sizeof(in), out, outlen);
+       if (err)
+               goto free_out;
+
+       #define MLX5_GET_CTR(p, x) \
+               MLX5_GET64(query_vport_counter_out, p, x)
+
+       memset(vf_stats, 0, sizeof(*vf_stats));
+       vf_stats->rx_packets =
+               MLX5_GET_CTR(out, received_eth_unicast.packets) +
+               MLX5_GET_CTR(out, received_eth_multicast.packets) +
+               MLX5_GET_CTR(out, received_eth_broadcast.packets);
+
+       vf_stats->rx_bytes =
+               MLX5_GET_CTR(out, received_eth_unicast.octets) +
+               MLX5_GET_CTR(out, received_eth_multicast.octets) +
+               MLX5_GET_CTR(out, received_eth_broadcast.octets);
+
+       vf_stats->tx_packets =
+               MLX5_GET_CTR(out, transmitted_eth_unicast.packets) +
+               MLX5_GET_CTR(out, transmitted_eth_multicast.packets) +
+               MLX5_GET_CTR(out, transmitted_eth_broadcast.packets);
+
+       vf_stats->tx_bytes =
+               MLX5_GET_CTR(out, transmitted_eth_unicast.octets) +
+               MLX5_GET_CTR(out, transmitted_eth_multicast.octets) +
+               MLX5_GET_CTR(out, transmitted_eth_broadcast.octets);
+
+       vf_stats->multicast =
+               MLX5_GET_CTR(out, received_eth_multicast.packets);
+
+       vf_stats->broadcast =
+               MLX5_GET_CTR(out, received_eth_broadcast.packets);
+
+free_out:
+       kvfree(out);
+       return err;
+}

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
index f85d5b8..02ff3ea 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
@@ -153,5 +153,8 @@ int mlx5_eswitch_set_vport_vlan(struct mlx5_eswitch *esw,
                                int vport, u16 vlan, u8 qos);
 int mlx5_eswitch_get_vport_config(struct mlx5_eswitch *esw,
                                  int vport, struct ifla_vf_info *ivi);
+int mlx5_eswitch_get_vport_stats(struct mlx5_eswitch *esw,
+                                int vport,
+                                struct ifla_vf_stats *vf_stats);
 
 #endif /* __MLX5_ESWITCH_H__ */