From: Paul Blakey <paulb@mellanox.com>
Date: Wed, 8 Jan 2020 14:31:53 +0200
Subject: net/mlx5: Allocate smaller size tables for ft offload
Patch-mainline: v5.7-rc1
Git-commit: 891b8f33218d0be4c56b702606d4be3da3eb2d8f
References: jsc#SLE-15172

Instead of giving ft tables one of the largest tables available - 4M,
give it a more reasonable size - 64k. Especially since it will
always be created as a miss hook in the following patch.

Signed-off-by: Paul Blakey <paulb@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads_chains.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads_chains.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads_chains.c
@@ -34,6 +34,7 @@ static const unsigned int ESW_POOLS[] =
 					  1 * 1024 * 1024,
 					  64 * 1024,
 					  128 };
+#define ESW_FT_TBL_SZ (64 * 1024)
 
 struct mlx5_esw_chains_priv {
 	struct rhashtable chains_ht;
@@ -201,7 +202,9 @@ mlx5_esw_chains_create_fdb_table(struct
 		ft_attr.flags |= (MLX5_FLOW_TABLE_TUNNEL_EN_REFORMAT |
 				  MLX5_FLOW_TABLE_TUNNEL_EN_DECAP);
 
-	sz = mlx5_esw_chains_get_avail_sz_from_pool(esw, POOL_NEXT_SIZE);
+	sz = (chain == mlx5_esw_chains_get_ft_chain(esw)) ?
+	     mlx5_esw_chains_get_avail_sz_from_pool(esw, ESW_FT_TBL_SZ) :
+	     mlx5_esw_chains_get_avail_sz_from_pool(esw, POOL_NEXT_SIZE);
 	if (!sz)
 		return ERR_PTR(-ENOSPC);
 	ft_attr.max_fte = sz;