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Explorer
Explorer
613 Views
Registered: ‎03-29-2017

GT Lane Selection for 25G Ethernet Subsystem in Zynq Ultrascale+

Hello,

         I am working with the board [zynq ultrascale+ mpsoc zcu102]. With the 10g/25G Ethernet Subsystem IP, we have achieved the 10G speed. Now we are going forward to 25G speed.

My question is How to set GT lane in the 10g/25G Ethernet Subsystem for 25g speed. What are the things to be done from 10G to 25G ? Whether any specific part number i need to choose for 25G ? Please let me know the process to achieve 25g speed.

25G Ether.pngEther_GTH.png

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5 Replies
Moderator
Moderator
590 Views
Registered: ‎05-02-2017

Re: GT Lane Selection for 25G Ethernet Subsystem in Zynq Ultrascale+

 

hi @thaus_015.

 

The ZCU102 board is populated with the Zynq UltraScale+ XCZU9EG-2FFVB1156E MPSoC which combines a powerful processing system (PS) and user-programmable logic (PL) into the same device,which has the GTH and PS-GTR, where the GTH is supports the line rate not more than 16.3Gb/s(UltraScale GTH (16.3 Gb/s): Low power & high performance for the toughest backplanes). where as the PS-GTR is support line rate upto 6.0Gb/s(UltraScale+ GTR (6.0 Gb/s): Easiest integration of common protocols to the Zynq Processor Subsystem).

since the line rate support of GTH is only till 16Gb/s so  we cannot use the GTH for line rate of 25Gbpbs.

I assume and believe I have cleared your query . let me know your inputs 

on this 

 

Regards
Chandra sekhar
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Explorer
Explorer
531 Views
Registered: ‎03-29-2017

Re: GT Lane Selection for 25G Ethernet Subsystem in Zynq Ultrascale+

>>since the line rate support of GTH is only till 16Gb/s so  we cannot use the GTH for line rate of 25Gbpbs.

Then how can i achieve the line rate of 25Gbpbs ?? Please clear me.

    >>let me know your inputs.

       I am passing 60 packets of data (CPRI concept) with header into 10G/25G Ethernet Subsytem.

 

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Moderator
Moderator
499 Views
Registered: ‎05-02-2017

Re: GT Lane Selection for 25G Ethernet Subsystem in Zynq Ultrascale+

 

hi @thaus_015,

 

if the GTH cannot support I think you cannot use it .

 

Regards
Chandra sekhar
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Explorer
Explorer
478 Views
Registered: ‎03-29-2017

Re: GT Lane Selection for 25G Ethernet Subsystem in Zynq Ultrascale+

I am using the following part number : xczu19eg-ffvd1760-3-e (active). We got license key for 25G Ethernet IP.

Please see the following screenshot.  

1. Pin assignments for xczu19eg-ffvd1760-3-e board.

Through this link https://www.xilinx.com/support/documentation/user_guides/ug1075-zynq-ultrascale-pkg-pinout.pdf

I have set the Pins. But i am not sure whether it is right or wrong.

25G_Pins.png

25G.png 

2. Whether lane selection is right or wrong ?

 

2. GTsele.png

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Moderator
Moderator
460 Views
Registered: ‎05-02-2017

Re: GT Lane Selection for 25G Ethernet Subsystem in Zynq Ultrascale+

 

hi @thaus_015,

 

your initial query was it respect to zcu102 board right , but if your using the GTY then is supported .

 

for lane selection see the below image

 

 

 

 

Regards
Chandra sekhar
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