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I'm adding some additional details to provide more context. I'm encountering this issue on Azure/Hyper-V platform with the existing DPDK-22.11.1 tap_bpf_insns.h byte-code.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Regards,<o:p></o:p></p>
<p class="MsoNormal">Anudattu.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b>From:</b> Kouilakonda Anudattu <kouilakonda.anudattu@oracle.com>
<br>
<b>Sent:</b> Monday, October 9, 2023 9:48 AM<br>
<b>To:</b> users@dpdk.org<br>
<b>Subject:</b> [External] : net/tap: eBPF failed to load BPF section and failed to create flows for TAP device<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Hi All,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">With the latest Oracle EL9 with DPDK 22.11.1 version, I modified the RSS eBPF C program and generated the structure of a C array in the 'tap_bpf_insns.h' file.
<o:p></o:p></p>
<p class="MsoNormal">This array is in eBPF bytecode instructions format. However, even with new bytecode eBPF failed to load TAP PMD with the following error:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">rss_add_actions(): Failed to load BPF section <b>'l3_l4' (7): Argument list too long.
<o:p></o:p></b></p>
<p class="MsoNormal">net_failsafe: Failed to create a flow on sub_device 1."<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<pre><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Currently we are using below kernel: <o:p></o:p></span></pre>
<p class="MsoNormal">5.15.0 #9 SMP PREEMPT <o:p></o:p></p>
<p class="MsoNormal">x86_64 GNU/Linux<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<pre><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">How to resolve these errors ?</span><o:p></o:p></pre>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Regards,<o:p></o:p></p>
<p class="MsoNormal">Anudattu<o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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