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net/mlx5e: Add device out of buffer counter

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Added the following packets drop counter:
Device out of buffer - counts packets which were dropped due to full
device internal receive queue.
This counter will be shown on ethtool as a new counter called
dev_out_of_buffer.
The counter is 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 2019-08-04 17:53:09 +03:00 committed by Saeed Mahameed
parent 45f171b118
commit 0cfafd4b4d
1 changed files with 26 additions and 14 deletions
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40
drivers/net/ethernet/mellanox/mlx5/core/en_stats.c
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@ -369,17 +369,27 @@ static void mlx5e_grp_q_update_stats(struct mlx5e_priv *priv)
} }
#define VNIC_ENV_OFF(c) MLX5_BYTE_OFF(query_vnic_env_out, c) #define VNIC_ENV_OFF(c) MLX5_BYTE_OFF(query_vnic_env_out, c)
static const struct counter_desc vnic_env_stats_desc[] = { static const struct counter_desc vnic_env_stats_steer_desc[] = {
{ "rx_steer_missed_packets", { "rx_steer_missed_packets",
VNIC_ENV_OFF(vport_env.nic_receive_steering_discard) }, VNIC_ENV_OFF(vport_env.nic_receive_steering_discard) },
}; };
#define NUM_VNIC_ENV_COUNTERS ARRAY_SIZE(vnic_env_stats_desc) static const struct counter_desc vnic_env_stats_dev_oob_desc[] = {
{ "dev_internal_queue_oob",
VNIC_ENV_OFF(vport_env.internal_rq_out_of_buffer) },
};
#define NUM_VNIC_ENV_STEER_COUNTERS(dev) \
(MLX5_CAP_GEN(dev, nic_receive_steering_discard) ? \
ARRAY_SIZE(vnic_env_stats_steer_desc) : 0)
#define NUM_VNIC_ENV_DEV_OOB_COUNTERS(dev) \
(MLX5_CAP_GEN(dev, vnic_env_int_rq_oob) ? \
ARRAY_SIZE(vnic_env_stats_dev_oob_desc) : 0)
static int mlx5e_grp_vnic_env_get_num_stats(struct mlx5e_priv *priv) static int mlx5e_grp_vnic_env_get_num_stats(struct mlx5e_priv *priv)
{ {
return MLX5_CAP_GEN(priv->mdev, nic_receive_steering_discard) ? return NUM_VNIC_ENV_STEER_COUNTERS(priv->mdev) +
NUM_VNIC_ENV_COUNTERS : 0; NUM_VNIC_ENV_DEV_OOB_COUNTERS(priv->mdev);
} }
static int mlx5e_grp_vnic_env_fill_strings(struct mlx5e_priv *priv, u8 *data, static int mlx5e_grp_vnic_env_fill_strings(struct mlx5e_priv *priv, u8 *data,
@ -387,12 +397,13 @@ static int mlx5e_grp_vnic_env_fill_strings(struct mlx5e_priv *priv, u8 *data,
{ {
int i; int i;
if (!MLX5_CAP_GEN(priv->mdev, nic_receive_steering_discard)) for (i = 0; i < NUM_VNIC_ENV_STEER_COUNTERS(priv->mdev); i++)
return idx;
for (i = 0; i < NUM_VNIC_ENV_COUNTERS; i++)
strcpy(data + (idx++) * ETH_GSTRING_LEN, strcpy(data + (idx++) * ETH_GSTRING_LEN,
vnic_env_stats_desc[i].format); vnic_env_stats_steer_desc[i].format);
for (i = 0; i < NUM_VNIC_ENV_DEV_OOB_COUNTERS(priv->mdev); i++)
strcpy(data + (idx++) * ETH_GSTRING_LEN,
vnic_env_stats_dev_oob_desc[i].format);
return idx; return idx;
} }
@ -401,12 +412,13 @@ static int mlx5e_grp_vnic_env_fill_stats(struct mlx5e_priv *priv, u64 *data,
{ {
int i; int i;
if (!MLX5_CAP_GEN(priv->mdev, nic_receive_steering_discard)) for (i = 0; i < NUM_VNIC_ENV_STEER_COUNTERS(priv->mdev); i++)
return idx;
for (i = 0; i < NUM_VNIC_ENV_COUNTERS; i++)
data[idx++] = MLX5E_READ_CTR64_BE(priv->stats.vnic.query_vnic_env_out, data[idx++] = MLX5E_READ_CTR64_BE(priv->stats.vnic.query_vnic_env_out,
vnic_env_stats_desc, i); vnic_env_stats_steer_desc, i);
for (i = 0; i < NUM_VNIC_ENV_DEV_OOB_COUNTERS(priv->mdev); i++)
data[idx++] = MLX5E_READ_CTR32_BE(priv->stats.vnic.query_vnic_env_out,
vnic_env_stats_dev_oob_desc, i);
return idx; return idx;
} }