diff options
author | 2024-04-11 00:41:54 +0300 | |
---|---|---|
committer | 2024-04-11 19:31:12 -0700 | |
commit | 919b38a916b4c616f1ead7d551de74bfcbe13e3c (patch) | |
tree | c98c71aa75f188dee7a19be11a0a2a8749c8164b /drivers/net | |
parent | Merge branch 'minor-cleanups-to-skb-frag-ref-unref' (diff) | |
download | linux-919b38a916b4c616f1ead7d551de74bfcbe13e3c.tar.gz linux-919b38a916b4c616f1ead7d551de74bfcbe13e3c.tar.bz2 linux-919b38a916b4c616f1ead7d551de74bfcbe13e3c.zip |
net/mlx5e: Expose the VF/SF RX drop counter on the representor
Q counters are device-level counters that track specific
events, among which are out_of_buffer events. These events
occur when packets are dropped due to a lack of receive
buffer in the RX queue.
Expose the total number of out_of_buffer events on the
VFs/SFs to their respective representor, using the
"ip stats group link" under the name of "rx_missed".
The "rx_missed" equals the sum of all
Q counters out_of_buffer values allocated on the VFs/SFs.
Signed-off-by: Carolina Jubran <cjubran@nvidia.com>
Reviewed-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Aya Levin <ayal@nvidia.com>
Reviewed-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://lore.kernel.org/r/20240410214154.250583-1-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net')
-rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_rep.c | 42 | ||||
-rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_stats.h | 2 |
2 files changed, 43 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c index a74ee698671c..6acecf2e7cf6 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c @@ -273,6 +273,40 @@ out: kvfree(out); } +static int mlx5e_rep_query_aggr_q_counter(struct mlx5_core_dev *dev, int vport, void *out) +{ + u32 in[MLX5_ST_SZ_DW(query_q_counter_in)] = {}; + + MLX5_SET(query_q_counter_in, in, opcode, MLX5_CMD_OP_QUERY_Q_COUNTER); + MLX5_SET(query_q_counter_in, in, other_vport, 1); + MLX5_SET(query_q_counter_in, in, vport_number, vport); + MLX5_SET(query_q_counter_in, in, aggregate, 1); + + return mlx5_cmd_exec_inout(dev, query_q_counter, in, out); +} + +static void mlx5e_rep_update_vport_q_counter(struct mlx5e_priv *priv) +{ + struct mlx5e_rep_stats *rep_stats = &priv->stats.rep_stats; + u32 out[MLX5_ST_SZ_DW(query_q_counter_out)] = {}; + struct mlx5e_rep_priv *rpriv = priv->ppriv; + struct mlx5_eswitch_rep *rep = rpriv->rep; + int err; + + if (!MLX5_CAP_GEN(priv->mdev, q_counter_other_vport) || + !MLX5_CAP_GEN(priv->mdev, q_counter_aggregation)) + return; + + err = mlx5e_rep_query_aggr_q_counter(priv->mdev, rep->vport, out); + if (err) { + netdev_warn(priv->netdev, "failed reading stats on vport %d, error %d\n", + rep->vport, err); + return; + } + + rep_stats->rx_vport_out_of_buffer = MLX5_GET(query_q_counter_out, out, out_of_buffer); +} + static void mlx5e_rep_get_strings(struct net_device *dev, u32 stringset, u8 *data) { @@ -1229,6 +1263,12 @@ static int mlx5e_update_rep_rx(struct mlx5e_priv *priv) return 0; } +static void mlx5e_rep_stats_update_ndo_stats(struct mlx5e_priv *priv) +{ + mlx5e_stats_update_ndo_stats(priv); + mlx5e_rep_update_vport_q_counter(priv); +} + static int mlx5e_rep_event_mpesw(struct mlx5e_priv *priv) { struct mlx5e_rep_priv *rpriv = priv->ppriv; @@ -1421,7 +1461,7 @@ static const struct mlx5e_profile mlx5e_rep_profile = { .enable = mlx5e_rep_enable, .disable = mlx5e_rep_disable, .update_rx = mlx5e_update_rep_rx, - .update_stats = mlx5e_stats_update_ndo_stats, + .update_stats = mlx5e_rep_stats_update_ndo_stats, .rx_handlers = &mlx5e_rx_handlers_rep, .max_tc = 1, .stats_grps = mlx5e_rep_stats_grps, diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h index 9cee4c9472e9..650732288616 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h @@ -484,6 +484,7 @@ struct mlx5e_rep_stats { u64 tx_vport_rdma_multicast_bytes; u64 vport_loopback_packets; u64 vport_loopback_bytes; + u64 rx_vport_out_of_buffer; }; struct mlx5e_stats { @@ -504,6 +505,7 @@ static inline void mlx5e_stats_copy_rep_stats(struct rtnl_link_stats64 *vf_vport vf_vport->tx_packets = rep_stats->vport_tx_packets; vf_vport->rx_bytes = rep_stats->vport_rx_bytes; vf_vport->tx_bytes = rep_stats->vport_tx_bytes; + vf_vport->rx_missed_errors = rep_stats->rx_vport_out_of_buffer; } extern mlx5e_stats_grp_t mlx5e_nic_stats_grps[]; |