Hi Jack, Thanks for pointing me in the right direction!
Cheers, Kaustubh On Mon, Sep 5, 2016 at 8:14 PM, Jack Hickish <jackhick...@gmail.com> wrote: > Hi Kaustubh, > > I think you missed out on a fix by just a couple of weeks -- see > https://github.com/casper-astro/mlib_devel/commit/ > 129937f7dba65f53db39b3fc0a0c968d2cacf9f6 > > Cheers > Jack > > On Mon, 5 Sep 2016 at 10:00 Kaustubh Rajwade <rkaustub...@gmail.com> > wrote: > >> Hi Jack, >> >> >> Here are commits that I am using: >> >> Old library: commit a88c343 (16 Nov 2010) >> >> New library: commit ecab6f (2 Jan 2015) >> >> Cheers, >> Kaustubh >> >> On Mon, Sep 5, 2016 at 6:07 PM, Jack Hickish <jackhick...@gmail.com> >> wrote: >> >>> Hi Kaustubh, >>> >>> What version of the mlib_devel libraries are you using? >>> >>> Cheers, >>> >>> Jack >>> >>> On Mon, 5 Sep 2016 at 08:11 Kaustubh Rajwade <rkaustub...@gmail.com> >>> wrote: >>> >>>> Hi Casperites, >>>> >>>> I have a simple ROACH 1 design streaming packets via two 10GbE ports >>>> (clock:160 MHz). When I compile the design using old libraries (XSG: 11.4, >>>> Matlab 2009), I have no issues in receiving packets via sockets. When I >>>> compile the same design using newer libraries (XSG:14.7, Matlab2013a), I >>>> can receive packets via tcpdump but I get bad checksum and I cannot capture >>>> the packets using standard methods (e.g. recvfrom()). An example of the >>>> checksum error is shown below: >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> *tcpdump: listening on eth2, link-type EN10MB (Ethernet), capture size >>>> 262144 bytes16:04:58.998384 02:02:0a:00:00:1f > 00:25:90:63:13:ac, >>>> ethertype IPv4 (0x0800), length 8242: (tos 0x0, ttl 255, id 0, offset 0, >>>> flags [DF], proto UDP (17), length 8228, bad cksum 63a8 (->47a0)!) >>>> 10.0.0.31.48400 > 10.0.0.10.48500: [no cksum] UDP, length 8200 >>>> 0x0000: 0025 9063 13ac 0202 0a00 001f 0800 4500 0x0010: 2024 0000 >>>> 4000 ff11 63a8 0a00 001f 0a00 0x0020: 000a bd10 bd74 2010 0000 0000 >>>> 0027 8734* >>>> I validated the payload in the udp packets by sending counter values. >>>> >>>> Has anyone experienced this issue before? >>>> >>>> Cheers, >>>> Kaustubh >>>> >>> >>
