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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: Mark Bloch <markb@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
hifive-unleashed-5.1
Mark Bloch 2018-01-23 11:19:12 +00:00 committed by Saeed Mahameed
parent 57cbd893c4
commit cd3d07e7db
1 changed files with 3 additions and 2 deletions
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5
drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
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@ -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);