Function mlx5_l3t_clear_entry

dpdk/drivers/net/mlx5/mlx5_utils.c:984–1064

}

int32_t
mlx5_l3t_clear_entry(struct mlx5_l3t_tbl *tbl, uint32_t idx)
{
	struct mlx5_l3t_level_tbl *g_tbl, *m_tbl;
	struct mlx5_l3t_entry_word *w_e_tbl;
	struct mlx5_l3t_entry_dword *dw_e_tbl;
	struct mlx5_l3t_entry_qword *qw_e_tbl;
	struct mlx5_l3t_entry_ptr *ptr_e_tbl;
	void *e_tbl;
	uint32_t entry_idx;
	uint64_t ref_cnt;
	int32_t ret = -1;

	rte_spinlock_lock(&tbl->sl);
	g_tbl = tbl->tbl;
	if (!g_tbl)
		goto out;
	m_tbl = g_tbl->tbl[(idx >> MLX5_L3T_GT_OFFSET) & MLX5_L3T_GT_MASK];
	if (!m_tbl)
		goto out;
	e_tbl = m_tbl->tbl[(idx >> MLX5_L3T_MT_OFFSET) & MLX5_L3T_MT_MASK];
	if (!e_tbl)
		goto out;
	entry_idx = idx & MLX5_L3T_ET_MASK;
	switch (tbl->type) {
	case MLX5_L3T_TYPE_WORD:
		w_e_tbl = (struct mlx5_l3t_entry_word *)e_tbl;
		MLX5_ASSERT(w_e_tbl->entry[entry_idx].ref_cnt);
		ret = --w_e_tbl->entry[entry_idx].ref_cnt;
		if (ret)
			goto out;
		w_e_tbl->entry[entry_idx].data = 0;
		ref_cnt = --w_e_tbl->ref_cnt;
		break;
	case MLX5_L3T_TYPE_DWORD:
		dw_e_tbl = (struct mlx5_l3t_entry_dword *)e_tbl;
		MLX5_ASSERT(dw_e_tbl->entry[entry_idx].ref_cnt);
		ret = --dw_e_tbl->entry[entry_idx].ref_cnt;
		if (ret)
			goto out;
		dw_e_tbl->entry[entry_idx].data = 0;
		ref_cnt = --dw_e_tbl->ref_cnt;
		break;
	case MLX5_L3T_TYPE_QWORD:
		qw_e_tbl = (struct mlx5_l3t_entry_qword *)e_tbl;
		MLX5_ASSERT(qw_e_tbl->entry[entry_idx].ref_cnt);
		ret = --qw_e_tbl->entry[entry_idx].ref_cnt;
		if (ret)
			goto out;
		qw_e_tbl->entry[entry_idx].data = 0;
		ref_cnt = --qw_e_tbl->ref_cnt;
		break;
	default:
		ptr_e_tbl = (struct mlx5_l3t_entry_ptr *)e_tbl;
		MLX5_ASSERT(ptr_e_tbl->entry[entry_idx].ref_cnt);
		ret = --ptr_e_tbl->entry[entry_idx].ref_cnt;
		if (ret)
			goto out;