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<p class="MsoNormal" style="margin-bottom:12.0pt">Classification: <b><span style="color:green">Public</span></b><span style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="MsoNormal">Hi All,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> We are working on pldm over NCSI NIC firmware update feature. We are using Raw socket to send the NCSI packets to NIC cards.<o:p></o:p></p>
<p class="MsoNormal"> This raw socket is working for the pldm over NCSI sensor commands. Pldm sensor commands having pldm payload as 6 bytes length only. We could see it in the tcpdump.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> The same raw socket is not working for pldm over NCSI NIC firmware update commands.<o:p></o:p></p>
<p class="MsoNormal"><o:p></o:p></p>
<p class="MsoNormal"> We are facing issues if we send the pldm payload length more than 24 bytes.
<o:p></o:p></p>
<p class="MsoNormal"> The commands are not sending with the pldm payload length of more than 24 bytes. Not sending in the TCP stack itself. That is also not captured in tcpdump.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> In the raw socket, We framed the packet like Ethernet header – 14 bytes, ncsi header – 16 bytes, pldm payload – 28 bytes.<o:p></o:p></p>
<p class="MsoNormal"> So, The commands are not sending if we send ethernet payload size greater than 54 bytes.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> But if we send less than 54, the commands are sending properly and got correct responses.
<o:p></o:p></p>
<p class="MsoNormal"> We tried with ncsi netlink library also to send the commands. There also we are facing same issue.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> Could you please point us if there is any known issues or workaround for this issue.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks,<o:p></o:p></p>
<p class="MsoNormal">Kumar.<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
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