DMA_CH_RDRLR     1505 drivers/net/ethernet/amd/xgbe/xgbe-dev.c 	XGMAC_DMA_IOWRITE(channel, DMA_CH_RDRLR, ring->rdesc_count - 1);
DMA_CH_RDRLR     1156 drivers/net/ethernet/synopsys/dwc-xlgmac-hw.c 	writel(ring->dma_desc_count - 1, XLGMAC_DMA_REG(channel, DMA_CH_RDRLR));