Hi,
All folks on this mailer are a VPP crew. So, even if I release a binary of the P4toVPP compiler, would anyone in VPP land even use the compiler? One would have to write P4 programs first. Not that writing a P4 program is rocket science – there is a Slack channel and mailer for P4 with very helpful crew. I don’t see an online repo of P4 programs just yet. VPP scripts generate a skeleton for a VPP plugin including API for plugin enable-disable. The compiler my company has developed generates CLI, API, and API handlers for plugin enable-disable and also for table entry add/delete/show tables. We are optimizing the compiler for better traffic performance as we speak. At least, if anyone uses the compiler, one doesn’t have to write CLI, API, and API handlers any more for a VPP plugin. Please let me know if anyone has any interest? Thanks, Hemant From: Andrew 👽 Yourtchenko <[email protected]> Sent: Thursday, September 17, 2020 2:21 AM To: [email protected] Cc: [email protected] Subject: Re: [vpp-dev] run existing plugin in VPP Excellent! So would my guess be right that you plan to autogenerate the tests as well ? --a On 17 Sep 2020, at 02:54, [email protected] <mailto:[email protected]> wrote: I did a “ps -ef | grep -I vpp” and found a few vpp processes (?) running. I killed them and then the single cdp test ran fine on using “sudo make test TEST=test_cdp” from vpp root directory. ============================================================================== CDP Test Case ============================================================================== test_cdp_overflow_tlv (test_cdp.TestCDP) 0.28 OK test_cdp_underflow_tlv (test_cdp.TestCDP) 0.29 OK test_enable_cdp (test_cdp.TestCDP) 0.23 OK test_send_cdp_packet (test_cdp.TestCDP) 0.28 OK ============================================================================== TEST RESULTS: Scheduled tests: 4 Executed tests: 4 Passed tests: 4 ============================================================================== Hemant From: [email protected] <mailto:[email protected]> <[email protected] <mailto:[email protected]> > Sent: Wednesday, September 16, 2020 7:43 PM To: '[email protected]' <[email protected] <mailto:[email protected]> > Cc: '[email protected]' <[email protected] <mailto:[email protected]> > Subject: RE: [vpp-dev] run existing plugin in VPP Andrew, Thanks. I will have to play more with VPP because “sudo make test TEST=test_cdp” fails. If anyone else is able to run this test, then I know I have some issues with my VPP setup or dependencies. I found the CSIT reports – thanks! Regarding my p4 to vpp compiler, it’s work in progress. I will update you all when something is ready for use. Hemant From: [email protected] <mailto:[email protected]> <[email protected] <mailto:[email protected]> > On Behalf Of Andrew Yourtchenko Sent: Wednesday, September 16, 2020 7:10 PM To: [email protected] <mailto:[email protected]> Cc: [email protected] <mailto:[email protected]> Subject: Re: [vpp-dev] run existing plugin in VPP Hemant, On 17 Sep 2020, at 00:43, [email protected] <mailto:[email protected]> wrote: Andrew, Thanks! Yes, I am a developer trying to get started with VPP. Cool! So my “find the answer” quiz was on target :-) I run VPP using “make run-release” and get to the “vpp#” prompt. I could do a “cdp enable” and thus I know this plugin has been loaded. Now how to I run the packet testing in vpp/src/plugins/cdp/test/? There is a test_cdp.py in the path. I am familiar with PTF. “Make test-help” will give more info. Once I can run test.py for a plugin, I’d like to learn how to run performance testing to see how many packets/sec of a certain size I can achieve for a plugin. What would be a good plugin to test performance with? That’s trickier... look around https://wiki.fd.io/view/CSIT - basically, perf testing the VPP is a separate project :-) but the good thing is some reports might be already there.. I love the fact that you (and perhaps others) have added lua examples to vpp-api. Lua didn’t get much love for quite a while and I think would need some resuscitations to work :-) That said, last time I had a half a day to toy with it, in half a day I had something sorta working... but don’t expect what is in the tree to be up to date... it’s waiting for the folks to help it :-) I am developing a compiler which ingests P4 code and outputs a VPP plugin. First, I will make the compiler functionally correct to support as many P4 features and as many VPP features. Then I will worry about performance which is a hard problem. This is a fun idea! If you see a VPP plugin, several files can be auto-generated by compiler or script. My compiler is already generating these files: -rw-rw-r-- 1 hemant hemant 1498 Sep 16 18:38 tmp_test.c -rw-rw-r-- 1 hemant hemant 10577 Sep 16 18:38 tmp.h -rw-rw-r-- 1 hemant hemant 79257 Sep 16 18:38 tmp.c -rw-rw-r-- 1 hemant hemant 412 Sep 16 18:38 tmp.api -rw-rw-r-- 1 hemant hemant 250 Sep 16 18:38 CMakeLists.txt Nice! There is the lisp script somewhere in the tree that asks questions and spits out the plugin, but it’s a skeleton, with P4 one could probably go quite a good bit further... Is your compiler gonna be open source ? —a Best wishes, Hemant From: Andrew 👽 Yourtchenko <[email protected] <mailto:[email protected]> > Sent: Wednesday, September 16, 2020 4:12 PM To: [email protected] <mailto:[email protected]> Cc: [email protected] <mailto:[email protected]> Subject: Re: [vpp-dev] run existing plugin in VPP Hey Hemant, Welcome! :-) Most of the plugins load automatically (default), some don’t by default.. (see src/plugins/unittest/unittest.c on how it’s overridden). You can take a look at the config required to change the defaults in test/framework.py, line 422) Looking at those places, as well as the CDP plugin, should answer the question. (I am assuming you are a developer trying to get started with VPP so trying to give the pointers I myself would have found useful). --a On 16 Sep 2020, at 19:11, hemant via lists.fd.io <[email protected] <mailto:[email protected]> > wrote: Folks, I am new to VPP. I see several plugins in vpp/src/plugins. How do I run an existing plugin in VPP such as cdp? Regards, Hemant
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