esm->rcv_buffer_size = clib_max (esm->rcv_buffer_size, esm->fifo_size);
for (i = 0; i < num_threads; i++)
vec_validate (esm->rx_buf[i], esm->rcv_buffer_size);
esm->rcv_buffer_size = clib_max (esm->rcv_buffer_size, esm->fifo_size);
for (i = 0; i < num_threads; i++)
vec_validate (esm->rx_buf[i], esm->rcv_buffer_size);