# RE: Virtex 4 Avnet Mini-Module Networking. - List: linuxppc-dev - 1 message, 1 author - Page: https://ratatoskr.run/linuxppc-dev/2007/06/9422807/t ## RE: Virtex 4 Avnet Mini-Module Networking. - From: Mohammad Sadegh Sadri \ - Date: 2007-06-22 21:21:34 - Message: https://ratatoskr.run/linuxppc-dev/2007/06/9422807.md ```text Andrei, well you are correct, using EDK9.1SP2 I created a custome design for ML405 = and implemented it. My design was exactly the same as what xapp941 presents= .=20 I have not access to ML405, but examining implementation results for two de= signs it is obvious that they are different. logic resource usage for xapp9= 41 is over 6000 slices but for the custome design it is near 5700 slices.=20 In addition the fan out value for PLB TEMAC clock is near 5000 for xapp941 = and near 3000 for our custome design. this means that plb temac module in x= app941 is much larger than our plb temac module.=20 I examined the MHS files for both designs carefully, they are really the sa= me. Of course it seems that the mhs file for xapp941 is edited by hand or a= t least is not created by the usual method we use. This is because signal n= ames and module names are completely different from an automatic EDK9.1 gen= erated design.=20 Finally why not ask the two authors of this app note about what they have d= one in their desing? is it some kind of secret?=20 and have you ever tried using ngc file for plb temac of xapp941 in a custom= e design? .... should not be really neccessary of course. ---------------------------------------- > Date: Thu, 21 Jun 2007 22:18:52 +0400 > From: > To: > CC: > Subject: Re: Virtex 4 Avnet Mini-Module Networking. >=20 > Mohammad Sadegh Sadri wrote: > >=20 > > very interesting > >=20 > > the provided xps project from xapp941 results 230Mbits but your custome= system is 83.0Mbits, yes? >=20 > yes >=20 > > just, are you sure the ppc core has the same core clock frequency in bo= th designs? I mean may be the xapp941 is running at 300MHz but yours at 100= MHz.=20 >=20 > both run at 300MHz >=20 > > And what about a custom system with 9.1SP2? does that gives the same pe= rformance? >=20 > haven't tried this yet >=20 > > Finally If possible please release the test results for TCP streams. ( = 9.1 no SP and 9.1 SP2 ) >=20 > The TEMAC driver is from EDK 9.1.02 (IOW, SP2). >=20 > bitstream made by myself with EDK 9.1.00: > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D >=20 > root@192.168.119.11:~/netperf-2.4.1/src# ./netperf -l 30 -H 192.168.119.1= -i 10, 2 -I 99,10 -t TCP_STREAM -- -m 32768 -s 262144 > TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 192.168.119.1 (1= 92.168.119.1) port 0 AF_INET : =B15.0% @ 99% conf. > Recv Send Send > Socket Socket Message Elapsed > Size Size Size Time Throughput > bytes bytes bytes secs. 10^6bits/sec >=20 > 87380 217088 32768 30.00 41.66 >=20 > bitstream from XAPP941: > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D >=20 > root@192.168.119.11:~/netperf-2.4.1/src# ./netperf -l 30 -H 192.168.119.1= -i 10, 2 -I 99,10 -t TCP_STREAM -- -m 32768 -s 262144 > TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 192.168.119.1 (1= 92.168.119.1) port 0 AF_INET : =B15.0% @ 99% conf. > Recv Send Send > Socket Socket Message Elapsed > Size Size Size Time Throughput > bytes bytes bytes secs. 10^6bits/sec >=20 > 87380 217088 32768 30.00 111.86 >=20 > And I didn't test ML405 receive performance. >=20 > Thanks, > Andrei >=20 > > thanks > >=20 > >=20 > >=20 > > ---------------------------------------- > >> Date: Thu, 21 Jun 2007 18:53:49 +0400 > >> From: > >> To: > >> CC: ; ; glenn.g.hart= @us.westinghouse.com > >> Subject: Re: Virtex 4 Avnet Mini-Module Networking. > >> > >> Mohammad Sadegh Sadri wrote: > >>> I'm wondering where are the original developers of TEMAC driver these= days, I have not seen any posts from any of andrei > >>> nor grant in the recent weeks. may be they are involved in other proj= ects. > >> As for me - no, not until the end of this week.. > >> > >> I am puzzled with the following: > >> > >> I've got ML405 recently. There is a prebuilt bitstream with TEMAC in S= GDMA mode for this board made by Xilinx (XAPP941). > >> With the TEMAC driver from EDK 9.1SP2 and the XAPP941 bitstream I've g= ot (no jumbo frames): > >> > >> XTemac: using sgDMA mode. > >> XTemac: using TxDRE mode > >> XTemac: using RxDRE mode > >> XTemac: buffer descriptor size: 32768 (0x8000) > >> XTemac: (buffer_descriptor_init) phy: 0x3cf8000, virt: 0xff100000, = size: 0x8000 > >> eth%d: XTemac: PHY detected at address 7. > >> eth0: Xilinx TEMAC #0 at 0x80000000 mapped to 0xC5060000, irq=3D0 > >> eth0: XTemac id 1.0f, block id 5, type 8 > >> > >> eth0: XTemac: Options: 0xb8f2 > >> eth0: XTemac: We renegotiated the speed to: 1000 > >> eth0: XTemac: speed set to 1000Mb/s > >> eth0: XTemac: Send Threshold =3D 16, Receive Threshold =3D 2 > >> eth0: XTemac: Send Wait bound =3D 1, Receive Wait bound =3D 1 > >> > >> root@192.168.119.11:~/netperf-2.4.1/src# ./netperf -l 30 -H 192.168= .119.1 -i 10, > >> 2 -I 99,10 -t UDP_STREAM -- -m 32768 -s 262144 > >> UDP UNIDIRECTIONAL SEND TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET = to 192.168.11 > >> 9.1 (192.168.119.1) port 0 AF_INET : =B15.0% @ 99% conf. > >> Socket Message Elapsed Messages > >> Size Size Time Okay Errors Throughput > >> bytes bytes secs # # 10^6bits/sec > >> > >> 217088 32768 30.00 26391 0 230.60 > >> 107520 30.00 26377 230.48 > >> > >> Not that bad for this setup. > >> > >> With xps (EDK 9.1 without any SPs) I've tried creating exact the same = design. > >> So that exact the same kernel etc could be used for the both bitstream= s. > >> And with the self-made one I see exact the same output with the only d= ifference: > >> > >> root@192.168.119.11:~/netperf-2.4.1/src# ./netperf -l 30 -H 192.168= .119.1 -i 10, > >> 2 -I 99,10 -t UDP_STREAM -- -m 32768 -s 262144 > >> UDP UNIDIRECTIONAL SEND TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET = to 192.168.11 > >> 9.1 (192.168.119.1) port 0 AF_INET : =B15.0% @ 99% conf. > >> Socket Message Elapsed Messages > >> Size Size Time Okay Errors Throughput > >> bytes bytes secs # # 10^6bits/sec > >> > >> 217088 32768 30.00 9593 0 83.82 > >> 107520 30.00 9586 83.76 > >> > >> :o( > >> > >> Rebuilding the XAPP941 project with EDK 9.1.00 still leaves 230Mb/sec. > >> I also pulled the additional timing constraints from XAPP941's data/sy= stem.ucf > >> into the self-made data/system.ucf, but this haven't change anything. > >> > >> I've run out of ideas, and switched from TEMAC to other Xilinx stuff f= or a while. > >> > >> > >> Thanks, > >> Andrei > >=20 > > _________________________________________________________________ > > Connect to the next generation of MSN Messenger=20 > > http://imagine-msn.com/messenger/launch80/default.aspx?locale=3Den-us&s= ource=3Dwlmailtagline > > _______________________________________________ > > Linuxppc-embedded mailing list > > Linuxppc-embedded@ozlabs.org > > https://ozlabs.org/mailman/listinfo/linuxppc-embedded >=20 _________________________________________________________________ Connect to the next generation of MSN Messenger=A0 http://imagine-msn.com/messenger/launch80/default.aspx?locale=3Den-us&sourc= e=3Dwlmailtagline= ```