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Commit 5c298143 authored by Moshe Shemesh's avatar Moshe Shemesh Committed by Saeed Mahameed
Browse files

net/mlx5e: Add vnic steering drop statistics 



Added the following packets drop counter:
Rx steering missed dropped packets - counts packets which were dropped
due to miss on NIC rx steering rules.
This counter will be shown on ethtool as a new counter called
rx_steer_missed_packets.

Signed-off-by: default avatarMoshe Shemesh <moshe@mellanox.com>
Signed-off-by: default avatarSaeed Mahameed <saeedm@mellanox.com>
parent 61c5b5c9

drivers/net/ethernet/mellanox/mlx5/core/en_stats.c

+65 −0
Original line number Diff line number Diff line
@@ -211,6 +211,65 @@ static void mlx5e_grp_q_update_stats(struct mlx5e_priv *priv) 
	qcnt->rx_out_of_buffer = MLX5_GET(query_q_counter_out, out, out_of_buffer);

}



#define VNIC_ENV_OFF(c) MLX5_BYTE_OFF(query_vnic_env_out, c)

static const struct counter_desc vnic_env_stats_desc[] = {

	{ "rx_steer_missed_packets",

		VNIC_ENV_OFF(vport_env.nic_receive_steering_discard) },

};



#define NUM_VNIC_ENV_COUNTERS		ARRAY_SIZE(vnic_env_stats_desc)



static int mlx5e_grp_vnic_env_get_num_stats(struct mlx5e_priv *priv)

{

	return MLX5_CAP_GEN(priv->mdev, nic_receive_steering_discard) ?

		NUM_VNIC_ENV_COUNTERS : 0;

}



static int mlx5e_grp_vnic_env_fill_strings(struct mlx5e_priv *priv, u8 *data,

					   int idx)

{

	int i;



	if (!MLX5_CAP_GEN(priv->mdev, nic_receive_steering_discard))

		return idx;



	for (i = 0; i < NUM_VNIC_ENV_COUNTERS; i++)

		strcpy(data + (idx++) * ETH_GSTRING_LEN,

		       vnic_env_stats_desc[i].format);

	return idx;

}



static int mlx5e_grp_vnic_env_fill_stats(struct mlx5e_priv *priv, u64 *data,

					 int idx)

{

	int i;



	if (!MLX5_CAP_GEN(priv->mdev, nic_receive_steering_discard))

		return idx;



	for (i = 0; i < NUM_VNIC_ENV_COUNTERS; i++)

		data[idx++] = MLX5E_READ_CTR64_BE(priv->stats.vnic.query_vnic_env_out,

						  vnic_env_stats_desc, i);

	return idx;

}



static void mlx5e_grp_vnic_env_update_stats(struct mlx5e_priv *priv)

{

	u32 *out = (u32 *)priv->stats.vnic.query_vnic_env_out;

	int outlen = MLX5_ST_SZ_BYTES(query_vnic_env_out);

	u32 in[MLX5_ST_SZ_DW(query_vnic_env_in)] = {0};

	struct mlx5_core_dev *mdev = priv->mdev;



	if (!MLX5_CAP_GEN(priv->mdev, nic_receive_steering_discard))

		return;



	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, other_vport, 0);

	mlx5_cmd_exec(mdev, in, sizeof(in), out, outlen);

}



#define VPORT_COUNTER_OFF(c) MLX5_BYTE_OFF(query_vport_counter_out, c)

static const struct counter_desc vport_stats_desc[] = {

	{ "rx_vport_unicast_packets",
@@ -1111,6 +1170,12 @@ const struct mlx5e_stats_grp mlx5e_stats_grps[] = { 
		.update_stats_mask = MLX5E_NDO_UPDATE_STATS,

		.update_stats = mlx5e_grp_q_update_stats,

	},

	{

		.get_num_stats = mlx5e_grp_vnic_env_get_num_stats,

		.fill_strings = mlx5e_grp_vnic_env_fill_strings,

		.fill_stats = mlx5e_grp_vnic_env_fill_stats,

		.update_stats = mlx5e_grp_vnic_env_update_stats,

	},

	{

		.get_num_stats = mlx5e_grp_vport_get_num_stats,

		.fill_strings = mlx5e_grp_vport_fill_strings,

drivers/net/ethernet/mellanox/mlx5/core/en_stats.h

+5 −0
Original line number Diff line number Diff line
@@ -99,6 +99,10 @@ struct mlx5e_qcounter_stats { 
	u32 rx_out_of_buffer;

};



struct mlx5e_vnic_env_stats {

	__be64 query_vnic_env_out[MLX5_ST_SZ_QW(query_vnic_env_out)];

};



#define VPORT_COUNTER_GET(vstats, c) MLX5_GET64(query_vport_counter_out, \

						vstats->query_vport_out, c)
@@ -201,6 +205,7 @@ struct mlx5e_ch_stats { 
struct mlx5e_stats {

	struct mlx5e_sw_stats sw;

	struct mlx5e_qcounter_stats qcnt;

	struct mlx5e_vnic_env_stats vnic;

	struct mlx5e_vport_stats vport;

	struct mlx5e_pport_stats pport;

	struct rtnl_link_stats64 vf_vport;

include/linux/mlx5/mlx5_ifc.h

+2 −1
Original line number Diff line number Diff line
@@ -1008,7 +1008,8 @@ struct mlx5_ifc_cmd_hca_cap_bits { 
	u8         reserved_at_330[0xb];

	u8         log_max_xrcd[0x5];



	u8         reserved_at_340[0x8];

	u8         nic_receive_steering_discard[0x1];

	u8         reserved_at_341[0x7];

	u8         log_max_flow_counter_bulk[0x8];

	u8         max_flow_counter_15_0[0x10];