IGB_RING_FLAG_RX_3K_BUFFER
test_bit(IGB_RING_FLAG_RX_3K_BUFFER, &(ring)->flags)
set_bit(IGB_RING_FLAG_RX_3K_BUFFER, &(ring)->flags)
clear_bit(IGB_RING_FLAG_RX_3K_BUFFER, &(ring)->flags)