From: Nicolas Ferre <nicolas.fe...@atmel.com> Date: Mon, 3 Dec 2012 13:15:43 +0100
> Macb Ethernet controller requires a RX buffer of 128 bytes. It is > highly sub-optimal for Gigabit-capable GEM that is able to use > a bigger DMA buffer. Change this constant and associated macros > with data stored in the private structure. > I also kept the result of buffers per page calculation to lower the > impact of this move to a variable rx buffer size on rx hot path. > RX DMA buffer size has to be multiple of 64 bytes as indicated in > DMA Configuration Register specification. > > Signed-off-by: Nicolas Ferre <nicolas.fe...@atmel.com> This looks like it will waste a couple hundred bytes for 1500 MTU frames, am I right? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
