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Commit cd3d07e7 authored by Mark Bloch's avatar Mark Bloch Committed by Saeed Mahameed
Browse files

net/mlx5: E-Switch, Increase number of FTEs in FDB in switchdev mode 



The max FTE number should be the max number of SQs that can be opened.
Ethernet representors open one SQ each. Once we add IB representor this
will increase (depends on the user). For now lets start with 31
per IB representor and if needed increase in the future.

This increase only affects the number of FTEs in the slow path FDB,
offloaded rules (done via TC on the fast path portion of the FDB)
aren't affected.

Signed-off-by: default avatarMark Bloch <markb@mellanox.com>
Reviewed-by: default avatarOr Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: default avatarLeon Romanovsky <leon@kernel.org>
Signed-off-by: default avatarSaeed Mahameed <saeedm@mellanox.com>
parent 57cbd893

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

+3 −2
Original line number Diff line number Diff line
@@ -427,6 +427,7 @@ static void esw_destroy_offloads_fast_fdb_table(struct mlx5_eswitch *esw) 
}



#define MAX_PF_SQ 256

#define MAX_SQ_NVPORTS 32



static int esw_create_offloads_fdb_tables(struct mlx5_eswitch *esw, int nvports)

{
@@ -456,7 +457,7 @@ static int esw_create_offloads_fdb_tables(struct mlx5_eswitch *esw, int nvports) 
	if (err)

		goto fast_fdb_err;



	table_size = nvports + MAX_PF_SQ + 1;

	table_size = nvports * MAX_SQ_NVPORTS + MAX_PF_SQ + 1;



	ft_attr.max_fte = table_size;

	ft_attr.prio = FDB_SLOW_PATH;
@@ -479,7 +480,7 @@ static int esw_create_offloads_fdb_tables(struct mlx5_eswitch *esw, int nvports) 
	MLX5_SET_TO_ONES(fte_match_param, match_criteria, misc_parameters.source_sqn);

	MLX5_SET_TO_ONES(fte_match_param, match_criteria, misc_parameters.source_port);



	ix = nvports + MAX_PF_SQ;

	ix = nvports * MAX_SQ_NVPORTS + MAX_PF_SQ;

	MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, 0);

	MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, ix - 1);