From: David Ward <david.w...@ll.mit.edu> Date: Sat, 9 May 2015 22:01:46 -0400
> In a GRED qdisc, if the default "virtual queue" (VQ) does not have drop > parameters configured, then packets for the default VQ are not subjected > to RED and are only dropped if the queue is larger than the net_device's > tx_queue_len. This behavior is useful for WRED mode, since these packets > will still influence the calculated average queue length and (therefore) > the drop probability for all of the other VQs. However, for some drivers > tx_queue_len is zero. In other cases the user may wish to make the limit > the same for all VQs (including the default VQ with no drop parameters). > > This change adds a TCA_GRED_LIMIT attribute to set the GRED queue limit, > in bytes, during qdisc setup. (This limit is in bytes to be consistent > with the drop parameters.) The default limit is the same as for a bfifo > queue (tx_queue_len * psched_mtu). If the drop parameters of any VQ are > configured with a smaller limit than the GRED queue limit, that VQ will > still observe the smaller limit instead. > > Signed-off-by: David Ward <david.w...@ll.mit.edu> Applied, thanks David. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
