SIS_RXCFG_DRAIN   282 dev/pci/if_sisreg.h 	(SIS_RXCFG_DRAIN(64)|SIS_RXDMA_256BYTES)
SIS_RXCFG_DRAIN   284 dev/pci/if_sisreg.h 	(SIS_RXCFG_DRAIN(64)|SIS_RXDMA_64BYTES)