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net/mlx4: support per-queue statistics via netlink

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Make mlx4 compatible with the newly added netlink queue stats API.

Signed-off-by: Joe Damato <jdamato@fastly.com>
Tested-by: Martin Karsten <mkarsten@uwaterloo.ca>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://lore.kernel.org/r/20240528181139.515070-4-jdamato@fastly.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Joe Damato
2024-05-28 18:11:38 +00:00
committed by Jakub Kicinski
parent 64b62146ba
commit a5602c6edf
1 changed files with 73 additions and 0 deletions
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73
drivers/net/ethernet/mellanox/mlx4/en_netdev.c
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@@ -43,6 +43,7 @@
#include <net/vxlan.h>
#include <net/devlink.h>
#include <net/rps.h>
#include <net/netdev_queues.h>
#include <linux/mlx4/driver.h>
#include <linux/mlx4/device.h>
@@ -3100,6 +3101,77 @@ void mlx4_en_set_stats_bitmap(struct mlx4_dev *dev,
last_i += NUM_PHY_STATS;
}
static void mlx4_get_queue_stats_rx(struct net_device *dev, int i,
struct netdev_queue_stats_rx *stats)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
const struct mlx4_en_rx_ring *ring;
spin_lock_bh(&priv->stats_lock);
if (!priv->port_up || mlx4_is_master(priv->mdev->dev))
goto out_unlock;
ring = priv->rx_ring[i];
stats->packets = READ_ONCE(ring->packets);
stats->bytes = READ_ONCE(ring->bytes);
stats->alloc_fail = READ_ONCE(ring->alloc_fail);
out_unlock:
spin_unlock_bh(&priv->stats_lock);
}
static void mlx4_get_queue_stats_tx(struct net_device *dev, int i,
struct netdev_queue_stats_tx *stats)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
const struct mlx4_en_tx_ring *ring;
spin_lock_bh(&priv->stats_lock);
if (!priv->port_up || mlx4_is_master(priv->mdev->dev))
goto out_unlock;
ring = priv->tx_ring[TX][i];
stats->packets = READ_ONCE(ring->packets);
stats->bytes = READ_ONCE(ring->bytes);
out_unlock:
spin_unlock_bh(&priv->stats_lock);
}
static void mlx4_get_base_stats(struct net_device *dev,
struct netdev_queue_stats_rx *rx,
struct netdev_queue_stats_tx *tx)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
spin_lock_bh(&priv->stats_lock);
if (!priv->port_up || mlx4_is_master(priv->mdev->dev))
goto out_unlock;
if (priv->rx_ring_num) {
rx->packets = 0;
rx->bytes = 0;
rx->alloc_fail = 0;
}
if (priv->tx_ring_num[TX]) {
tx->packets = 0;
tx->bytes = 0;
}
out_unlock:
spin_unlock_bh(&priv->stats_lock);
}
static const struct netdev_stat_ops mlx4_stat_ops = {
.get_queue_stats_rx = mlx4_get_queue_stats_rx,
.get_queue_stats_tx = mlx4_get_queue_stats_tx,
.get_base_stats = mlx4_get_base_stats,
};
int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
struct mlx4_en_port_profile *prof)
{
@@ -3263,6 +3335,7 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
netif_set_real_num_tx_queues(dev, priv->tx_ring_num[TX]);
netif_set_real_num_rx_queues(dev, priv->rx_ring_num);
dev->stat_ops = &mlx4_stat_ops;
dev->ethtool_ops = &mlx4_en_ethtool_ops;
/*