On Sun, Oct 09, 2022 at 05:51:46PM +0200, Marek Vasut wrote: > Add new desc_per_cacheline property which lets a platform run RX descriptor > cleanup after every power-of-2 - 1 received packets instead of every packet. > This is useful on platforms where (axi_bus_width EQOS_AXI_WIDTH_n * DMA DSL > inter-descriptor word skip count + DMA descriptor size) is less than cache > line size, which necessitates packing multiple DMA descriptors into single > cache line. > > In case of TX descriptors, this is not a problem, since the driver always > does synchronous TX, i.e. the TX descriptor is always written, flushed and > polled for completion in eqos_send(). > > In case of RX descriptors, it is necessary to update their status in bulk, > i.e. after the entire cache line worth of RX descriptors has been used up > to receive data. > > Signed-off-by: Marek Vasut <ma...@denx.de> > Reviewed-by: Patrice Chotard <patrice.chot...@foss.st.com> > Reviewed-by: Ramon Fried <rfried....@gmail.com>
Applied to u-boot/master, thanks! -- Tom
signature.asc
Description: PGP signature
