[spp] Proposal - spp_vf(SR-IOV like feature) addition to SPP
Yasufumi Ogawa
ogawa.yasufumi at lab.ntt.co.jp
Tue Dec 26 02:54:04 CET 2017
Hi,
Thanks Hiroyuki for proposing new feature. I did not tell you the link
of reference.
[1]
https://dpdksummit.com/Archive/pdf/2017USA/Implementation%20and%20Testing%20of%20Soft%20Patch%20Panel.pdf
I'm waiting for your patches!
Thanks,
Yasufumi
On 2017/12/25 13:41, Nakamura Hioryuki wrote:
> Hi everyone,
>
> As announced in DPDK Summit, we would like to introduce a SR-IOV like network
> functionality to SPP on DPDK17.08[1].
>
> To support such functionality, we have developed new
> controller(spp_vf.py) and secondary process(spp_vf).
>
> spp_vf process has three kinds of component, classifier, forwarder and merger.
> These components communicate each other via ring-pmd,
> and provides SR-IOV like packet classification function according to virtual
> MAC address.
>
> Classifier:
> This component provides packet forwarding function from one port to one port.
> Classifier has table of virtual MAC address.
> According to this table, classifier lookups L2 destination MAC address
> and determines which port to be transferred to incoming packets.
> L2 Multicast feature is also supported.
>
> Forwarder:
> This provides function for packet processing from one port to one port.
> Incoming packets from port are to be transferred to specific one port.
> The direction of this transferring is specified by `port` command.
>
> Merger:
> This component provides packet forwarding function from multiple ports to one port.
> Incoming packets from multiple ports are to be transferred to one specific port.
> The flow of this merging process is specified by `port` command.
>
> By the combination of these component, following SR-IOV like function can be configured.
>
> +----------+ +-----------+
> |Classifier|->ringPMD->|Forwarder#1|->vhost->VM#1 --------+
> Packet(dstMAC:A/B) | | +-----------+ (vMAC:A) |
> ------phy--------> | | +-----------+ |
> | |->ringPMD->|Forwarder#2|->vhost->VM#2 ---+ |
> | | +-----------+ (vMAC:B)| |
> +----------+ | |
> | |
> +----------+ +-----------+ | |
> |Merger |<-ringPMD<-|Forwarder#3|<-vhost --==----------+
> | | +-----------+ |
> <------phy--------| | +-----------+ |
> | |<-ringPMD<-|Forwarder#4|<-vhost ---------+
> +----------+ +-----------+
>
> Limitaion#1: vlan support is not yet, this feature is in still our backlogs.
> Limitaion#2: Support DPDK17.11 is not yet.
>
> Code changes will be posted in the following emails.
>
> Regard,
>
>
> -- Hiroyuki Nakamura
> NTT TechnoCross Corporation
>
>
>
>
--
Yasufumi Ogawa
NTT Network Service Systems Labs
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