On Wed, 2013-07-31 at 18:51 +0800, Ming Lei wrote: > Hi, > > This patchset allows drivers to pass sg buffers which size can't be divided > by max packet size of endpoint if the host controllers support this kind > of sg buffers. > > Previously we add check[1] on the situation and don't allow these sg buffers > passed to USB HCD, looks the check is too strict because some applications(such > as network stack) can't provide this sg buffers which size can be divided by > max packet size, so this patch looses the check in case that the host controllers > support it. > > Also patch 3/4 implements DMA SG on usbnet driver, and patch 4/4 > enables it on ax88179_178a USB3 NIC, so CPU utilization can be > decreased much with usbnet DMA SG when the USB3 NIC is attached to > xHCI controller. This looks very promising to me, thanks a lot for doing this Ming. -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
