BGE_PCIDMARWCTL_WR_WAT_SHIFT
dma_rw_ctl |= (0x3 << BGE_PCIDMARWCTL_WR_WAT_SHIFT);
(0x2 << BGE_PCIDMARWCTL_WR_WAT_SHIFT);
(0x2 << BGE_PCIDMARWCTL_WR_WAT_SHIFT);
(3 << BGE_PCIDMARWCTL_WR_WAT_SHIFT);
(0x3 << BGE_PCIDMARWCTL_WR_WAT_SHIFT);
(0x7 << BGE_PCIDMARWCTL_WR_WAT_SHIFT);