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net/mlx5: DR, Add check for multi destination FTE

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The driver should not allow rule that forward to more than one FT in TX
flow unless there is a specific support from the FW.

Signed-off-by: Erez Shitrit <erezsh@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
This commit is contained in:
Erez Shitrit 2023-03-13 14:10:20 +02:00 • committed by Saeed Mahameed
parent 653b7eb9d7
commit f6f46e7173
1 changed files with 13 additions and 0 deletions
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13
drivers/net/ethernet/mellanox/mlx5/core/steering/dr_action.c
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@ -55,6 +55,12 @@ static const char *dr_action_id_to_str(enum mlx5dr_action_type action_id)
return action_type_to_str[action_id];
}
static bool mlx5dr_action_supp_fwd_fdb_multi_ft(struct mlx5_core_dev *dev)
{
return (MLX5_CAP_ESW_FLOWTABLE(dev, fdb_multi_path_any_table_limit_regc) ||
MLX5_CAP_ESW_FLOWTABLE(dev, fdb_multi_path_any_table));
}
static const enum dr_action_valid_state
next_action_state[DR_ACTION_DOMAIN_MAX][DR_ACTION_STATE_MAX][DR_ACTION_TYP_MAX] = {
[DR_ACTION_DOMAIN_NIC_INGRESS] = {
@ -1167,6 +1173,7 @@ mlx5dr_action_create_mult_dest_tbl(struct mlx5dr_domain *dmn,
struct mlx5dr_action **ref_actions;
struct mlx5dr_action *action;
bool reformat_req = false;
u16 num_dst_ft = 0;
u32 num_of_ref = 0;
u32 ref_act_cnt;
int ret;
@ -1210,6 +1217,12 @@ mlx5dr_action_create_mult_dest_tbl(struct mlx5dr_domain *dmn,
break;
case DR_ACTION_TYP_FT:
if (num_dst_ft &&
!mlx5dr_action_supp_fwd_fdb_multi_ft(dmn->mdev)) {
mlx5dr_dbg(dmn, "multiple FT destinations not supported\n");
goto free_ref_actions;
}
num_dst_ft++;
hw_dests[i].type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
if (dest_action->dest_tbl->is_fw_tbl)
hw_dests[i].ft_id = dest_action->dest_tbl->fw_tbl.id;