diff options
| author | Khalid Manaa | 2021-05-26 10:01:34 +0300 |
|---|---|---|
| committer | Saeed Mahameed | 2021-10-26 19:30:41 -0700 |
| commit | 83439f3c37aa811223f16704d2d7dc743a7fa4e0 (patch) | |
| tree | ea0d4c34d4f28c2537af4b65d3f1a5a1d843fcd8 /drivers | |
| parent | def09e7bbc3d85844443cb4bf13faae969ea115f (diff) | |
net/mlx5e: Add HW-GRO offload
This commit introduces HW-GRO offload by using the SHAMPO feature
- Add set feature handler for HW-GRO.
Signed-off-by: Ben Ben-Ishay <benishay@nvidia.com>
Signed-off-by: Khalid Manaa <khalidm@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c index e922584f2702..ecaad2d6c216 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c @@ -3549,6 +3549,35 @@ out: return err; } +static int set_feature_hw_gro(struct net_device *netdev, bool enable) +{ + struct mlx5e_priv *priv = netdev_priv(netdev); + struct mlx5e_params new_params; + bool reset = true; + int err = 0; + + mutex_lock(&priv->state_lock); + new_params = priv->channels.params; + + if (enable) { + new_params.packet_merge.type = MLX5E_PACKET_MERGE_SHAMPO; + new_params.packet_merge.shampo.match_criteria_type = + MLX5_RQC_SHAMPO_MATCH_CRITERIA_TYPE_EXTENDED; + new_params.packet_merge.shampo.alignment_granularity = + MLX5_RQC_SHAMPO_NO_MATCH_ALIGNMENT_GRANULARITY_STRIDE; + } else if (new_params.packet_merge.type == MLX5E_PACKET_MERGE_SHAMPO) { + new_params.packet_merge.type = MLX5E_PACKET_MERGE_NONE; + } else { + goto out; + } + + err = mlx5e_safe_switch_params(priv, &new_params, + mlx5e_modify_tirs_packet_merge_ctx, NULL, reset); +out: + mutex_unlock(&priv->state_lock); + return err; +} + static int set_feature_cvlan_filter(struct net_device *netdev, bool enable) { struct mlx5e_priv *priv = netdev_priv(netdev); @@ -3722,6 +3751,7 @@ int mlx5e_set_features(struct net_device *netdev, netdev_features_t features) mlx5e_handle_feature(netdev, &oper_features, features, feature, handler) err |= MLX5E_HANDLE_FEATURE(NETIF_F_LRO, set_feature_lro); + err |= MLX5E_HANDLE_FEATURE(NETIF_F_GRO_HW, set_feature_hw_gro); err |= MLX5E_HANDLE_FEATURE(NETIF_F_HW_VLAN_CTAG_FILTER, set_feature_cvlan_filter); err |= MLX5E_HANDLE_FEATURE(NETIF_F_HW_TC, set_feature_hw_tc); @@ -3782,6 +3812,10 @@ static netdev_features_t mlx5e_fix_features(struct net_device *netdev, netdev_warn(netdev, "Disabling LRO, not supported in legacy RQ\n"); features &= ~NETIF_F_LRO; } + if (features & NETIF_F_GRO_HW) { + netdev_warn(netdev, "Disabling HW-GRO, not supported in legacy RQ\n"); + features &= ~NETIF_F_GRO_HW; + } } if (MLX5E_GET_PFLAG(params, MLX5E_PFLAG_RX_CQE_COMPRESS)) { @@ -4723,6 +4757,10 @@ static void mlx5e_build_nic_netdev(struct net_device *netdev) netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_FILTER; netdev->hw_features |= NETIF_F_HW_VLAN_STAG_TX; + if (!!MLX5_CAP_GEN(mdev, shampo) && + mlx5e_check_fragmented_striding_rq_cap(mdev)) + netdev->hw_features |= NETIF_F_GRO_HW; + if (mlx5e_tunnel_any_tx_proto_supported(mdev)) { netdev->hw_enc_features |= NETIF_F_HW_CSUM; netdev->hw_enc_features |= NETIF_F_TSO; @@ -4773,6 +4811,7 @@ static void mlx5e_build_nic_netdev(struct net_device *netdev) if (fcs_enabled) netdev->features &= ~NETIF_F_RXALL; netdev->features &= ~NETIF_F_LRO; + netdev->features &= ~NETIF_F_GRO_HW; netdev->features &= ~NETIF_F_RXFCS; #define FT_CAP(f) MLX5_CAP_FLOWTABLE(mdev, flow_table_properties_nic_receive.f) |