From: Zoltan Kiss <[email protected]> Date: Mon, 24 Mar 2014 23:59:49 +0000
> Since the early days TX stops if there isn't enough free pending slots to > consume a maximum sized (slot-wise) packet. Probably the reason for that is to > avoid the case when we don't have enough free pending slot in the ring to > finish > the packet. But if we make sure that the pending ring has the same size as the > shared ring, that shouldn't really happen. The frontend can only post packets > which fit the to the free space of the shared ring. If it doesn't, the > frontend > has to stop, as it can only increase the req_prod when the whole packet fits > onto the ring. > This patch avoid using this checking, makes sure the 2 ring has the same size, > and remove a checking from the callback. As now we don't stop the NAPI > instance > on this condition, we don't have to wake it up if we free pending slots up. > > Signed-off-by: Zoltan Kiss <[email protected]> Applied. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
