diff options
| author | Or Gerlitz <ogerlitz@mellanox.com> | 2018-07-01 08:58:38 +0000 |
|---|---|---|
| committer | Saeed Mahameed <saeedm@mellanox.com> | 2018-10-01 11:32:47 -0700 |
| commit | b856df28f9230a47669efbdd57896084caadb2b3 (patch) | |
| tree | 7235c3962db022e76078c9bd584b4fd29b295a67 /drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c | |
| parent | b820e6fb0978f9c2ac438c199d2bb2f35950e9c9 (diff) | |
net/mlx5e: Allow reporting of checksum unnecessary
Currently we practically never report checksum unnecessary, because
for all IP packets we take the checksum complete path.
Enable non-default runs with reprorting checksum unnecessary, using
an ethtool private flag. This can be useful for performance evals
and other explorations.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c index 33dafd8638b1..c86fd770c463 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c @@ -140,6 +140,7 @@ static const char mlx5e_priv_flags[][ETH_GSTRING_LEN] = { "tx_cqe_moder", "rx_cqe_compress", "rx_striding_rq", + "rx_no_csum_complete", }; int mlx5e_ethtool_get_sset_count(struct mlx5e_priv *priv, int sset) @@ -1531,6 +1532,27 @@ static int set_pflag_rx_striding_rq(struct net_device *netdev, bool enable) return 0; } +static int set_pflag_rx_no_csum_complete(struct net_device *netdev, bool enable) +{ + struct mlx5e_priv *priv = netdev_priv(netdev); + struct mlx5e_channels *channels = &priv->channels; + struct mlx5e_channel *c; + int i; + + if (!test_bit(MLX5E_STATE_OPENED, &priv->state)) + return 0; + + for (i = 0; i < channels->num; i++) { + c = channels->c[i]; + if (enable) + __set_bit(MLX5E_RQ_STATE_NO_CSUM_COMPLETE, &c->rq.state); + else + __clear_bit(MLX5E_RQ_STATE_NO_CSUM_COMPLETE, &c->rq.state); + } + + return 0; +} + static int mlx5e_handle_pflag(struct net_device *netdev, u32 wanted_flags, enum mlx5e_priv_flag flag, @@ -1582,6 +1604,12 @@ static int mlx5e_set_priv_flags(struct net_device *netdev, u32 pflags) err = mlx5e_handle_pflag(netdev, pflags, MLX5E_PFLAG_RX_STRIDING_RQ, set_pflag_rx_striding_rq); + if (err) + goto out; + + err = mlx5e_handle_pflag(netdev, pflags, + MLX5E_PFLAG_RX_NO_CSUM_COMPLETE, + set_pflag_rx_no_csum_complete); out: mutex_unlock(&priv->state_lock); |