LPC Microcontrollers中的主题 Re: lpc54018 credit based shaper

lpc54018 credit based shaper

wwang — Sat, 07 May 2022 14:49:01 GMT

Does LPC54018 support credit based shaper, if yes, how can I enable it ?

Re: lpc54018 credit based shaper

xiangjun_rong — Mon, 09 May 2022 06:39:20 GMT

Hi,

I do not think that the Ethernet module of LPC54018 supports credit based shaper.

Hope it can help you

XiangJun Rong

Re: lpc54018 credit based shaper

magicoe_niu — Mon, 09 May 2022 08:48:32 GMT

@william_jiang would you mind assign a guy support this case who knows Ethernet IP well?

The end customer is Microsoft

Re: lpc54018 credit based shaper

wwang — Mon, 09 May 2022 09:03:10 GMT

Thanks for the information.

I just created the code based on the reference manual : UM11060
LPC540xx/LPC54S0xx User manual.

and there are actually credit based shaper register on LPC54018

Re: lpc54018 credit based shaper

xiangjun_rong — Mon, 09 May 2022 10:00:34 GMT

Hi, Wang,

I appologize for the wrong information, I am not familiar with the CBS (credit based shaper) protocol.

We will give you a response after we discuss with AE team engineers.

XiangJun Rong

Re: lpc54018 credit based shaper

xiangjun_rong — Tue, 10 May 2022 08:05:50 GMT

Hi,

Obviously, from the UM11060.pdf, the LPC54018 supports CBS, I will create a ticket for AE team, pls clarify your requirements so that the AE team engineer can help you

If you require us to review the code, pls post it here or send to my personal Email if it is confidential.

XiangJun Rong

Re: lpc54018 credit based shaper

wwang — Tue, 10 May 2022 09:25:58 GMT

ok, i can send you the CBS code to review, can you tell me your email?

Do you have examples that show how to use CBS and how to validate the CBS function？

Re: lpc54018 credit based shaper

xiangjun_rong — Fri, 13 May 2022 09:49:29 GMT

Hi,

I tried to contact you, but it appears that your Email address has issue. Pls check if the spelling is correct.

wwang@expresslogic.com

Xiangjun Rong

Re: lpc54018 credit based shaper

wwang — Sat, 14 May 2022 11:43:29 GMT

thanks for the effort, that email can't be accessed.

i will leave my personal email here: wenflower@163.com

Re: lpc54018 credit based shaper

wwang — Mon, 16 May 2022 05:07:43 GMT

Hi Magicoe,

any update on this topic?

is there any special requirement for enabling CBS?

we run traditional iperf test on queue enabled CBS, and expect the throughput are limited by the idle slope. Is that reasonable?

Re: lpc54018 credit based shaper

wwang — Tue, 31 May 2022 08:57:48 GMT

Hi,

have you received the project I send out by e-mail?

thanks.

Re: lpc54018 credit based shaper

xiangjun_rong — Wed, 01 Jun 2022 09:39:36 GMT

Hi, Wang,

Can you clarify your requirement? do you hope that NXP engineer can help review your code, or you do not know how to use CBS feature of ethernet and hope to get support.

Pls clarify your requirements.

XiangJun Rong

Re: lpc54018 credit based shaper

wwang — Mon, 06 Jun 2022 01:36:23 GMT

1. if LPC54018 support CBS?

2. if yes, how to enable it.

if the question 2 is too complicate, let us ignore it.

I think just to clarify if LPC54018 supports CBS, that will be good enough.

Re: lpc54018 credit based shaper

xiangjun_rong — Wed, 08 Jun 2022 05:38:33 GMT

Hi, Wang,

This is the AE reply "LPC54018 supports CBS", but we have not the code to support the feature in SDK driver. I am sorry.

XiangJun Rong