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Commit f913a72a authored by Maor Gottlieb's avatar Maor Gottlieb Committed by David S. Miller
Browse files

net/mlx5e: Add support to get ethtool flow rules 



Enhance the existing get_rxnfc callback:
1. Get flow rule of specific ID.
2. Get all flow rules.
3. Get number of rules.

Signed-off-by: default avatarMaor Gottlieb <maorg@mellanox.com>
Signed-off-by: default avatarSaeed Mahameed <saeedm@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 1174fce8

drivers/net/ethernet/mellanox/mlx5/core/en.h

+4 −0
Original line number Diff line number Diff line
@@ -717,6 +717,10 @@ int mlx5e_create_flow_steering(struct mlx5e_priv *priv); 
void mlx5e_destroy_flow_steering(struct mlx5e_priv *priv);

void mlx5e_init_l2_addr(struct mlx5e_priv *priv);

void mlx5e_destroy_flow_table(struct mlx5e_flow_table *ft);

int mlx5e_ethtool_get_flow(struct mlx5e_priv *priv, struct ethtool_rxnfc *info,

			   int location);

int mlx5e_ethtool_get_all_flows(struct mlx5e_priv *priv,

				struct ethtool_rxnfc *info, u32 *rule_locs);

int mlx5e_ethtool_flow_replace(struct mlx5e_priv *priv,

			       struct ethtool_rx_flow_spec *fs);

int mlx5e_ethtool_flow_remove(struct mlx5e_priv *priv,

drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c

+9 −0
Original line number Diff line number Diff line
@@ -931,6 +931,15 @@ static int mlx5e_get_rxnfc(struct net_device *netdev, 
	case ETHTOOL_GRXRINGS:

		info->data = priv->params.num_channels;

		break;

	case ETHTOOL_GRXCLSRLCNT:

		info->rule_cnt = priv->fs.ethtool.tot_num_rules;

		break;

	case ETHTOOL_GRXCLSRULE:

		err = mlx5e_ethtool_get_flow(priv, info, info->fs.location);

		break;

	case ETHTOOL_GRXCLSRLALL:

		err = mlx5e_ethtool_get_all_flows(priv, info, rule_locs);

		break;

	default:

		err = -EOPNOTSUPP;

		break;

drivers/net/ethernet/mellanox/mlx5/core/en_fs_ethtool.c

+34 −0
Original line number Diff line number Diff line
@@ -537,6 +537,40 @@ int mlx5e_ethtool_flow_remove(struct mlx5e_priv *priv, 
	return err;

}



int mlx5e_ethtool_get_flow(struct mlx5e_priv *priv, struct ethtool_rxnfc *info,

			   int location)

{

	struct mlx5e_ethtool_rule *eth_rule;



	if (location < 0 || location >= MAX_NUM_OF_ETHTOOL_RULES)

		return -EINVAL;



	list_for_each_entry(eth_rule, &priv->fs.ethtool.rules, list) {

		if (eth_rule->flow_spec.location == location) {

			info->fs = eth_rule->flow_spec;

			return 0;

		}

	}



	return -ENOENT;

}



int mlx5e_ethtool_get_all_flows(struct mlx5e_priv *priv, struct ethtool_rxnfc *info,

				u32 *rule_locs)

{

	int location = 0;

	int idx = 0;

	int err = 0;



	while ((!err || err == -ENOENT) && idx < info->rule_cnt) {

		err = mlx5e_ethtool_get_flow(priv, info, location);

		if (!err)

			rule_locs[idx++] = location;

		location++;

	}

	return err;

}



void mlx5e_ethtool_cleanup_steering(struct mlx5e_priv *priv)

{

	struct mlx5e_ethtool_rule *iter;