From 5c298143be17f5100656b9c140af672c644116d9 Mon Sep 17 00:00:00 2001 From: Moshe Shemesh Date: Tue, 26 Dec 2017 16:46:29 +0200 Subject: [PATCH] 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: Moshe Shemesh Signed-off-by: Saeed Mahameed --- .../ethernet/mellanox/mlx5/core/en_stats.c | 65 +++++++++++++++++++ .../ethernet/mellanox/mlx5/core/en_stats.h | 5 ++ include/linux/mlx5/mlx5_ifc.h | 3 +- 3 files changed, 72 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c index 2553c58dcf1c..552510c03ef2 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c @@ -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, diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h index 0b3320a2b072..847388ff8ca8 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h @@ -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; diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h index 52e373dd2679..9202113f552c 100644 --- a/include/linux/mlx5/mlx5_ifc.h +++ b/include/linux/mlx5/mlx5_ifc.h @@ -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]; -- GitLab