net/mlx5e: Redirect RQT refactoring

RQ Tables are always created once (on netdev creation) pointing to drop RQ
and at that stage, RQ tables (indirection tables) are always directed to
drop RQ.

We don't need to use mlx5e_fill_{direct,indir}_rqt_rqns to fill the drop
RQ in create RQT procedure.

Instead of having separate flows to redirect direct and indirect RQ Tables
to the current active channels Receive Queues (RQs), we unify the two
flows by introducing mlx5e_redirect_rqt function and redirect_rqt_param
struct. Combined, they provide one generic logic to fill the RQ table RQ
numbers regardless of the RQ table purpose (direct/indirect).

Demonstrated the usage with mlx5e_redirect_rqts_to_channels which will
be called on mlx5e_open and with mlx5e_redirect_rqts_to_drop which will
be called on mlx5e_close.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>

1 files changed, 13 insertions, 1 deletions

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h
index b00c6688ddcf..50dfc4c6c8e4 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h
@@ -843,7 +843,19 @@ void mlx5e_disable_vlan_filter(struct mlx5e_priv *priv);
 
 int mlx5e_modify_channels_vsd(struct mlx5e_channels *chs, bool vsd);
 
-int mlx5e_redirect_rqt(struct mlx5e_priv *priv, u32 rqtn, int sz, int ix);
+struct mlx5e_redirect_rqt_param {
+	bool is_rss;
+	union {
+		u32 rqn; /* Direct RQN (Non-RSS) */
+		struct {
+			u8 hfunc;
+			struct mlx5e_channels *channels;
+		} rss; /* RSS data */
+	};
+};
+
+int mlx5e_redirect_rqt(struct mlx5e_priv *priv, u32 rqtn, int sz,
+		       struct mlx5e_redirect_rqt_param rrp);
 void mlx5e_build_indir_tir_ctx_hash(struct mlx5e_priv *priv, void *tirc,
 				    enum mlx5e_traffic_types tt);