From: Jiri Pirko <j...@resnulli.us> Date: Wed, 6 Apr 2016 17:09:59 +0200
> From: Jiri Pirko <j...@mellanox.com> > > Ido says: > > This patchset introduces support for Quality of Service (QoS) as part of the > IEEE Data Center Bridiging (DCB) standards. > > Patches 1-9 do the required device initialization. Specifically, patches 1-6 > initialize the ports' headroom buffers, which are used at ingress to store > incoming packets while they go through the switch's pipeline. Patches 7-9 > complete them by initializing the egress scheduling. > > The pipeline mentioned above determines the packet's egress port(s) and > traffic class. Ideally, once out of the pipeline the packet moves to the > switch's shared buffer (to be introduced in Jiri's patchset, currently > default values are used) and scheduled for transmission according to its > traffic class. The egress scheduling is configured according to the 802.1Qaz > standard, which is part of the DCB infrastructure supported by Linux. This > is introduced in patches 10-12. > > Even after going through the pipeline packets are not always eligible to > enter the shared buffer. This is determined by the amount of available space > and the quotas associated with the packet. However, if flow control is > enabled and the packet is associated with the lossless flow, then it will > stay in the headroom and won't be discarded. This is introduced in patches > 13-17. > > Please check individual commit messages for more info, as I tried to keep > them pretty detailed. Series applied, thanks guys.
