On Thu, 2013-08-08 at 21:48 +0800, Ming Lei wrote: > This patch enables 'can_dma_sg' flag for ax88179_178a device > if the attached host controller supports building packet from > discontinuous buffers(DMA SG is possible), so TSO can be enabled > and skb fragment buffers can be passed to usb stack via urb->sg > directly. > > With the patch, system CPU utilization decreased ~50% and throughput > increased by ~10% when doing iperf client test on one ARM A15 dual > core board. > > Cc: Eric Dumazet <[email protected]> > Cc: Ben Hutchings <[email protected]> > Cc: Grant Grundler <[email protected]> > Cc: Oliver Neukum <[email protected]> > Cc: Alan Stern <[email protected]> > Cc: Freddy Xin <[email protected]> > Signed-off-by: Ming Lei <[email protected]> > --- > drivers/net/usb/ax88179_178a.c | 8 ++++++++ > 1 file changed, 8 insertions(+)
Acked-by: Eric Dumazet <[email protected]> Thanks for doing this ! -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
