netdev - [net-next 08/13] net/mlx5e: Expose ethtool rss key size / indirection table functions

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Date:   Mon,  1 Oct 2018 11:56:56 -0700
From:   Saeed Mahameed <saeedm@...lanox.com>
To:     "David S. Miller" <davem@...emloft.net>
Cc:     netdev@...r.kernel.org, Or Gerlitz <ogerlitz@...lanox.com>,
        Saeed Mahameed <saeedm@...lanox.com>
Subject: [net-next 08/13] net/mlx5e: Expose ethtool rss key size / indirection table functions

From: Or Gerlitz <ogerlitz@...lanox.com>

Towards enabling RSS for the vport representors, expose the functions for
querying the rss hash key size and indirection table size via ethtool.

Signed-off-by: Or Gerlitz <ogerlitz@...lanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@...lanox.com>
Signed-off-by: Saeed Mahameed <saeedm@...lanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en.h     |  2 ++
 .../net/ethernet/mellanox/mlx5/core/en_ethtool.c | 16 ++++++++++++++--
 2 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h
index 98390a5b106a..b3bd79833517 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h
@@ -951,6 +951,8 @@ int mlx5e_ethtool_get_coalesce(struct mlx5e_priv *priv,
 			       struct ethtool_coalesce *coal);
 int mlx5e_ethtool_set_coalesce(struct mlx5e_priv *priv,
 			       struct ethtool_coalesce *coal);
+u32 mlx5e_ethtool_get_rxfh_key_size(struct mlx5e_priv *priv);
+u32 mlx5e_ethtool_get_rxfh_indir_size(struct mlx5e_priv *priv);
 int mlx5e_ethtool_get_ts_info(struct mlx5e_priv *priv,
 			      struct ethtool_ts_info *info);
 int mlx5e_ethtool_flash_device(struct mlx5e_priv *priv,
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
index 8cd338ceb237..33dafd8638b1 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
@@ -859,18 +859,30 @@ static int mlx5e_set_link_ksettings(struct net_device *netdev,
 	return err;
 }
 
+u32 mlx5e_ethtool_get_rxfh_key_size(struct mlx5e_priv *priv)
+{
+	return sizeof(priv->channels.params.toeplitz_hash_key);
+}
+
 static u32 mlx5e_get_rxfh_key_size(struct net_device *netdev)
 {
 	struct mlx5e_priv *priv = netdev_priv(netdev);
 
-	return sizeof(priv->channels.params.toeplitz_hash_key);
+	return mlx5e_ethtool_get_rxfh_key_size(priv);
 }
 
-static u32 mlx5e_get_rxfh_indir_size(struct net_device *netdev)
+u32 mlx5e_ethtool_get_rxfh_indir_size(struct mlx5e_priv *priv)
 {
 	return MLX5E_INDIR_RQT_SIZE;
 }
 
+static u32 mlx5e_get_rxfh_indir_size(struct net_device *netdev)
+{
+	struct mlx5e_priv *priv = netdev_priv(netdev);
+
+	return mlx5e_ethtool_get_rxfh_indir_size(priv);
+}
+
 static int mlx5e_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
 			  u8 *hfunc)
 {
-- 
2.17.1