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net/mlx5: Add packet dropped while vport down statistics

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Added the following packets dropped while vport down statistics:

Rx dropped while vport down - counts packets which were steered by
e-switch to a vport, but dropped since the vport was down. This counter
will be shown on ip link tool as part of the vport rx_dropped counter.

Tx dropped while vport down - counts packets which were transmitted by
a vport, but dropped due to vport logical link down. This counter
will be shown on ip link tool as part of the vport tx_dropped counter.

The counters are read from FW by command QUERY_VNIC_ENV.

Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Moshe Shemesh 2018-01-14 00:56:25 +02:00 committed by Saeed Mahameed
parent 5c298143be
commit aaabd0783b
4 changed files with 58 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

31
drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
View File

@ -2096,17 +2096,19 @@ int mlx5_eswitch_set_vport_rate(struct mlx5_eswitch *esw, int vport,
return err;
}
static void mlx5_eswitch_query_vport_drop_stats(struct mlx5_core_dev *dev,
int vport_idx,
struct mlx5_vport_drop_stats *stats)
static int mlx5_eswitch_query_vport_drop_stats(struct mlx5_core_dev *dev,
int vport_idx,
struct mlx5_vport_drop_stats *stats)
{
struct mlx5_eswitch *esw = dev->priv.eswitch;
struct mlx5_vport *vport = &esw->vports[vport_idx];
u64 rx_discard_vport_down, tx_discard_vport_down;
u64 bytes = 0;
u16 idx = 0;
int err = 0;
if (!vport->enabled || esw->mode != SRIOV_LEGACY)
return;
return 0;
if (vport->egress.drop_counter) {
idx = vport->egress.drop_counter->id;
@ -2117,6 +2119,23 @@ static void mlx5_eswitch_query_vport_drop_stats(struct mlx5_core_dev *dev,
idx = vport->ingress.drop_counter->id;
mlx5_fc_query(dev, idx, &stats->tx_dropped, &bytes);
}
if (!MLX5_CAP_GEN(dev, receive_discard_vport_down) &&
!MLX5_CAP_GEN(dev, transmit_discard_vport_down))
return 0;
err = mlx5_query_vport_down_stats(dev, vport_idx,
&rx_discard_vport_down,
&tx_discard_vport_down);
if (err)
return err;
if (MLX5_CAP_GEN(dev, receive_discard_vport_down))
stats->rx_dropped += rx_discard_vport_down;
if (MLX5_CAP_GEN(dev, transmit_discard_vport_down))
stats->tx_dropped += tx_discard_vport_down;
return 0;
}
int mlx5_eswitch_get_vport_stats(struct mlx5_eswitch *esw,
@ -2180,7 +2199,9 @@ int mlx5_eswitch_get_vport_stats(struct mlx5_eswitch *esw,
vf_stats->broadcast =
MLX5_GET_CTR(out, received_eth_broadcast.packets);
mlx5_eswitch_query_vport_drop_stats(esw->dev, vport, &stats);
err = mlx5_eswitch_query_vport_drop_stats(esw->dev, vport, &stats);
if (err)
goto free_out;
vf_stats->rx_dropped = stats.rx_dropped;
vf_stats->tx_dropped = stats.tx_dropped;

26
drivers/net/ethernet/mellanox/mlx5/core/vport.c
View File

@ -1070,6 +1070,32 @@ int mlx5_core_query_vport_counter(struct mlx5_core_dev *dev, u8 other_vport,
}
EXPORT_SYMBOL_GPL(mlx5_core_query_vport_counter);
int mlx5_query_vport_down_stats(struct mlx5_core_dev *mdev, u16 vport,
u64 *rx_discard_vport_down,
u64 *tx_discard_vport_down)
{
u32 out[MLX5_ST_SZ_DW(query_vnic_env_out)] = {0};
u32 in[MLX5_ST_SZ_DW(query_vnic_env_in)] = {0};
int err;
MLX5_SET(query_vnic_env_in, in, opcode,
MLX5_CMD_OP_QUERY_VNIC_ENV);
MLX5_SET(query_vnic_env_in, in, op_mod, 0);
MLX5_SET(query_vnic_env_in, in, vport_number, vport);
if (vport)
MLX5_SET(query_vnic_env_in, in, other_vport, 1);
err = mlx5_cmd_exec(mdev, in, sizeof(in), out, sizeof(out));
if (err)
return err;
*rx_discard_vport_down = MLX5_GET64(query_vnic_env_out, out,
vport_env.receive_discard_vport_down);
*tx_discard_vport_down = MLX5_GET64(query_vnic_env_out, out,
vport_env.transmit_discard_vport_down);
return 0;
}
int mlx5_core_modify_hca_vport_context(struct mlx5_core_dev *dev,
u8 other_vport, u8 port_num,
int vf,

4
include/linux/mlx5/mlx5_ifc.h
View File

@ -1009,7 +1009,9 @@ struct mlx5_ifc_cmd_hca_cap_bits {
u8 log_max_xrcd[0x5];
u8 nic_receive_steering_discard[0x1];
u8 reserved_at_341[0x7];
u8 receive_discard_vport_down[0x1];
u8 transmit_discard_vport_down[0x1];
u8 reserved_at_343[0x5];
u8 log_max_flow_counter_bulk[0x8];
u8 max_flow_counter_15_0[0x10];

3
include/linux/mlx5/vport.h
View File

@ -107,6 +107,9 @@ int mlx5_modify_nic_vport_vlans(struct mlx5_core_dev *dev,
int mlx5_nic_vport_enable_roce(struct mlx5_core_dev *mdev);
int mlx5_nic_vport_disable_roce(struct mlx5_core_dev *mdev);
int mlx5_query_vport_down_stats(struct mlx5_core_dev *mdev, u16 vport,
u64 *rx_discard_vport_down,
u64 *tx_discard_vport_down);
int mlx5_core_query_vport_counter(struct mlx5_core_dev *dev, u8 other_vport,
int vf, u8 port_num, void *out,
size_t out_sz);