> Ok, so the networking layer should be fine. However, with the current > patch, if the mass storage driver sends down a scatter-gather list > that's bigger than a ring segment, or needs to be split up so it doesn't > cross 64K boundaries, then the URB submission will fail. We don't want > that to happen. My suspicion is that long SG lists are unusual - otherwise the ring expansion code would have been needed much earlier. Can anyone remember whether that was needed because of long SG lists or because of large numbers of outstanding requests? I've seen it for network cards - but only because usbnet sends down far too many tx buffers. David -- 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
