<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
font-size:11.0pt;
font-family:"Calibri",sans-serif;
mso-ligatures:standardcontextual;
mso-fareast-language:EN-US;}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-family:"Calibri",sans-serif;
mso-fareast-language:EN-US;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:70.85pt 70.85pt 70.85pt 70.85pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="PL" link="#0563C1" vlink="#954F72" style="word-wrap:break-word">
<div class="WordSection1">
<p class="MsoNormal"><span lang="EN-US">Hi Guys,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I have following problem with networking on Zynq running RTEMS 5.3 + libbsd + BSP zynq_zedboard of according version.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I had to patch the libbsd to support some network PHY for the boards I use.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Whenever I connect the device to 1Gbit interface, and the link is negotiated to 1Gbit everything seems working just fine. I can PING the board and successfully connect to TCP/IP socket (custom test echo server basing
on the examples int the rtems-libbsd repository + sockets).<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">When I connect the board to 100Mbit interface (another usb dongle) it seems to establish the link fine, but I cannot ping the board nor connect to the socket. I replicated this behavior with at least three different 1Gbit
interfaces (works each time) and two 100Mbit dongles (not working). I confirmed that behavior using PYNQ Z1 board and also with our other custom device.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Additionally, I had an opportunity to test our custom board with another 'hello world' echo server that came from my colleges that use Xilin'x Vitis + LwIP (bare metal application) and that one has been working in every
link speed configuration. <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">It seems to me that the problem my reside in the RTEMS software part or drivers (or my compilation or configuration) and not in the HW since I could confirm it's working with LwIP for all configs... Unfortunately, I have
little experience with networking in general and was not able to solve that issue on my own.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I attach the RTEMS shell output of `ifconfig -a` executed on PYNQ Z1 when connected to 1Gbit eth device (PING working):<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">'''<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">SHLL [/] # ifconfig cgem0 192.168.10.207 netmask 255.255.255.0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">SHLL [/] # ifconfig -a
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">cgem0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> options=80008<VLAN_MTU,LINKSTATE><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> ether 0e:b0:ba:5e:ba:11<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> inet6 fe80::cb0:baff:fe5e:ba11%cgem0 prefixlen 64 scopeid 0x1<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> inet 192.168.10.207 netmask 0xffffff00 broadcast 192.168.10.255<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> media: Ethernet autoselect (1000baseT <full-duplex,master>)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> status: active<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> options=680003<RXCSUM,TXCSUM,LINKSTATE,RXCSUM_IPV6,TXCSUM_IPV6><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> inet 127.0.0.1 netmask 0xffffff00<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> inet6 ::1 prefixlen 128<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> </span><span lang="ES">inet6 fe80::1%lo0 prefixlen 64 scopeid 0x2<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="ES"> </span><span lang="EN-US">nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> groups: lo<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">'''<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Then hot switch to 100Mbit usb eth card (PING not working):<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">'''<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">SHLL [/] # info: cgem0: link state changed to DOWN<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">cgem0: cgem_mediachange: could not set ref clk0 to 25000000.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">info: cgem0: link state changed to UP<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">SHLL [/] # ifconfig cgem0 172.19.1.207 netmask 255.255.255.0
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">SHLL [/] # ifconfig -a
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">cgem0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> options=80008<VLAN_MTU,LINKSTATE><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> ether 0e:b0:ba:5e:ba:11<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> inet6 fe80::cb0:baff:fe5e:ba11%cgem0 prefixlen 64 scopeid 0x1<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> inet 172.19.1.207 netmask 0xffffff00 broadcast 172.19.1.255<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> media: Ethernet autoselect (100baseTX <full-duplex>)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> status: active<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> options=680003<RXCSUM,TXCSUM,LINKSTATE,RXCSUM_IPV6,TXCSUM_IPV6><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> inet 127.0.0.1 netmask 0xffffff00<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> inet6 ::1 prefixlen 128<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> </span><span lang="ES">inet6 fe80::1%lo0 prefixlen 64 scopeid 0x2<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="ES"> </span><span lang="EN-US">nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> groups: lo<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">'''<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Do You have any idea of what may be causing the issue here? Thanks for all help in advance.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal">Karol G.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
</body>
</html>