[00:00.000 --> 00:13.080]  Okay, so this is the lightning talk section, like I say, please don't get up and move after
[00:13.080 --> 00:16.000]  every single talk, otherwise it's going to be a chaos.
[00:16.000 --> 00:19.840]  So you're in here for the whole 50 minutes, 60 minutes actually.
[00:19.840 --> 00:26.000]  So just sit down, relax, enjoy, starting with, I'm afraid I've forgotten your name.
[00:26.000 --> 00:35.000]  Okay, I hope everyone can hear me now, my name is Jaco, hello everyone.
[00:35.000 --> 00:41.000]  I am currently a firmware engineer at Sartura, and today I'll give you a very brief overview
[00:41.000 --> 00:45.000]  of what we have been doing in open-source switching space.
[00:45.000 --> 00:50.000]  So the presentation is very brief, so I'll jump right in.
[00:50.000 --> 00:55.000]  Okay, so basically when we talk about switching, we are talking about
[00:55.000 --> 00:59.000]  devices network switches, right?
[00:59.000 --> 01:02.000]  Our team has started out with CPEs.
[01:02.000 --> 01:07.000]  So these are embedded network devices like access points and routers.
[01:07.000 --> 01:13.000]  But a network switch basically is a multi-port device which has a dedicated ASIC,
[01:13.000 --> 01:15.000]  which controls packet switching.
[01:15.000 --> 01:21.000]  And this ASIC also has to support some kind of hardware offloading for advanced features
[01:21.000 --> 01:24.000]  like lag and so on.
[01:24.000 --> 01:32.000]  So in this space for the Linux kernel, we have an internal driver model,
[01:32.000 --> 01:34.000]  which is called switch dev.
[01:34.000 --> 01:42.000]  This model allows the driver to offload the data plane onto the switch ASIC, right?
[01:42.000 --> 01:48.000]  And also for the switching part, we have a relevant project called ONI.
[01:48.000 --> 01:53.000]  ONI is actually a pre-installed environment for network switches.
[01:53.000 --> 01:56.000]  But ONI is not just that.
[01:56.000 --> 02:01.000]  It also supports various hardware standards in this domain.
[02:01.000 --> 02:04.000]  So we'll get to it in a bit.
[02:04.000 --> 02:08.000]  Okay, so where are we right now with open-source switching?
[02:08.000 --> 02:10.000]  There are some challenges.
[02:10.000 --> 02:15.000]  So basically we have a limited amount of platform supported in the mainline kernel.
[02:15.000 --> 02:19.000]  The most common ones are Pristera from Marvel.
[02:19.000 --> 02:26.000]  We also have some Spectrum devices and Sparks 5 switch chipset family.
[02:26.000 --> 02:32.000]  Obviously in this space we want to build a fully open-source switching platform.
[02:32.000 --> 02:40.000]  This means that we have decided to join the DENT project and the DENT community.
[02:40.000 --> 02:51.000]  The DENT project is actually looking to create something like a fully open-source enterprise-grade network switch.
[02:51.000 --> 02:57.000]  And in this space we have been working to lead the DENT upstream working group,
[02:57.000 --> 03:03.000]  which has organized and funded work for open-source switching.
[03:03.000 --> 03:09.000]  Okay, so one of the projects which has been organized and funded by this DENT community
[03:09.000 --> 03:13.000]  has been the Linux ONI NVMM project.
[03:13.000 --> 03:19.000]  Basically the idea was that ONI, the specification from ONI,
[03:19.000 --> 03:25.000]  mandates that all network devices and hardware must have some kind of product data
[03:25.000 --> 03:28.000]  stored in non-volatile memory.
[03:28.000 --> 03:34.000]  This chip actually has to be supported in the mainline kernel.
[03:34.000 --> 03:43.000]  And the idea was to expose some standardized API in the kernel to allow user space to read from it.
[03:43.000 --> 03:47.000]  And this has been done by the Wootling guys.
[03:47.000 --> 03:56.000]  So the other work that we have been doing in this space independently from DENT
[03:56.000 --> 04:00.000]  is actually for the replica 1 build system project.
[04:00.000 --> 04:08.000]  So we have been working on the PSU driver for the Delta chipsets.
[04:08.000 --> 04:18.000]  We have also done some PoE driver support and the upstreamed TN48M CPLD drivers.
[04:18.000 --> 04:24.000]  Here we have the GPO driver and the CLPD reset controller.
[04:24.000 --> 04:27.000]  These are some of the patches that we have made.
[04:27.000 --> 04:34.000]  You can see that there have been a lot of these revisions for the upstreaming process.
[04:34.000 --> 04:39.000]  So what are we actually planning for the future?
[04:39.000 --> 04:44.000]  Currently the support is, as I said, rather limited
[04:44.000 --> 04:50.000]  because for example one of the most important aspects is the management of power over Ethernet.
[04:50.000 --> 04:57.000]  There is currently no standardized power over Ethernet management interface in the Linux kernel.
[04:57.000 --> 05:02.000]  And this is something that we would like to work with, for example, the DENT community to achieve.
[05:02.000 --> 05:10.000]  Obviously this would imply also writing a PoE manager daemon, which would manage the PoE features of the switches.
[05:10.000 --> 05:19.000]  And also this kind of work would allow other PoE controllers to be easily integrated into the kernel.
[05:19.000 --> 05:27.000]  Also on the user space side we also have some support in system B network D done.
[05:27.000 --> 05:38.000]  For example, virtual LANs. Our team has been working on the DHCPv4 static leases in this project.
[05:38.000 --> 05:48.000]  And also we have been working on adding wired 8.802.1x support in the host APD project.
[05:48.000 --> 05:53.000]  So that's basically it. Thank you all for listening.
[05:53.000 --> 05:58.000]  If you have any questions regarding this kind of work, please get in touch.
[05:58.000 --> 06:00.000]  And thank you everyone.
[06:00.000 --> 06:02.000]  Thank you.