NIU_NUM_LDG
struct msix_entry msi_vec[NIU_NUM_LDG];
first_ldg = (NIU_NUM_LDG / parent->num_ports) * np->port;
for (i = 0; i < (NIU_NUM_LDG / parent->num_ports); i++)
BUG_ON(num_irqs > (NIU_NUM_LDG / parent->num_ports));
u8 ldg_num_map[NIU_NUM_LDG];
struct niu_ldg ldg[NIU_NUM_LDG];