<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=utf-8"> <meta name="Generator" content="Microsoft Word 15 (filtered medium)"> <style></style> </head> <body lang="en-IL" link="blue" vlink="purple" style="word-wrap:break-word"> <div class="WordSection1"> <p class="MsoNormal"><span lang="en-IL" style="font-size:11.0pt;mso-fareast-language:EN-US">Hi, Lukas,<o:p></o:p></span></p> <p class="MsoNormal"><span lang="en-IL" style="font-size:11.0pt;mso-fareast-language:EN-US">Thanks for reaching out.<o:p></o:p></span></p> <p class="MsoNormal"><span lang="en-IL" style="font-size:11.0pt;mso-fareast-language:EN-US"><o:p> </o:p></span></p> <p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US">You’re already using the right <b>testpmd CLI</b>; the failure is coming from missing HW/FW capabilities, not from the commands.<o:p></o:p></span></p> <ol style="margin-top:0cm" start="1" type="1"> <li class="MsoListParagraph" style="margin-left:0cm;mso-list:l3 level1 lfo4"><b><span style="font-size:11.0pt;mso-fareast-language:EN-US">Why you see “Dynamic flex parser is not supported on HWS”<o:p></o:p></span></b></li></ol> <p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US">The error comes straight from mlx5 HWS code when trying to allocate a <b>flex parser for SRH</b>:<o:p></o:p></span></p> <p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US">if (!config->hca_attr.parse_graph_flex_node ||<o:p></o:p></span></p> <p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US"> !config->hca_attr.flex.query_match_sample_info) {<o:p></o:p></span></p> <p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US"> DRV_LOG(ERR, "Dynamic flex parser is not supported on HWS");<o:p></o:p></span></p> <p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US"> return -ENOTSUP;<o:p></o:p></span></p> <p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US">}<o:p></o:p></span></p> <p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US">This means: on your CX7, in <b>HWS / template API mode</b> (dv_flow_en=2), the HCA capabilities do <b>not</b> report support for “parse graph flex node” + “query_match_sample_info” → HWS cannot create the SRH flex parser, so IPv6 ext push/remove offload is rejected.<o:p></o:p></span></p> <div class="MsoNormal" align="center" style="text-align:center"><span style="font-size:11.0pt;mso-fareast-language:EN-US"> <hr size="2" width="100%" align="center"> </span></div> <span style="font-size:11.0pt;font-family:"Aptos",sans-serif;mso-fareast-language:EN-US"> <ol style="margin-top:0cm" start="2" type="1"> <li class="MsoListParagraph" style="margin-left:0cm;mso-list:l3 level1 lfo4"><b><span style="font-size:11.0pt;mso-fareast-language:EN-US">HW/FW and configuration requirements<o:p></o:p></span></b></li></ol> </span> <p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US">From the DPDK docs and your own “uptream vs mlnx Doc” matrix:<o:p></o:p></span></p> <ul style="margin-top:0cm" type="disc"> <li class="MsoNormal" style="mso-list:l0 level1 lfo2"><b><span style="font-size:11.0pt;mso-fareast-language:EN-US">Hardware requirements</span></b><span style="font-size:11.0pt;mso-fareast-language:EN-US"> (SRv6 push/remove feature): <o:p></o:p></span></li><ul style="margin-top:0cm" type="circle"> <li class="MsoNormal" style="mso-list:l0 level2 lfo2"><b><span style="font-size:11.0pt;mso-fareast-language:EN-US">REMOVE</span></b><span style="font-size:11.0pt;mso-fareast-language:EN-US"> action: <b>ConnectX-6 Dx and above</b><o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l0 level2 lfo2"><b><span style="font-size:11.0pt;mso-fareast-language:EN-US">PUSH</span></b><span style="font-size:11.0pt;mso-fareast-language:EN-US"> action: <b>ConnectX-7 and above</b> (your card qualifies)<o:p></o:p></span></li></ul> <li class="MsoNormal" style="mso-list:l0 level1 lfo2"><b><span style="font-size:11.0pt;mso-fareast-language:EN-US">HWS flex-parser configuration needed for IPv6 ext push/remove tests</span></b><span style="font-size:11.0pt;mso-fareast-language:EN-US">: <o:p></o:p></span></li><ul style="margin-top:0cm" type="circle"> <li class="MsoNormal" style="mso-list:l0 level2 lfo2"><span style="font-size:11.0pt;mso-fareast-language:EN-US">FLEX_PARSER_PROFILE_ENABLE = 4<o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l0 level2 lfo2"><span style="font-size:11.0pt;mso-fareast-language:EN-US">PROG_PARSE_GRAPH = 1<o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l0 level2 lfo2"><span style="font-size:11.0pt;mso-fareast-language:EN-US">And note: “push not supported with CX6DX, only CX7”<o:p></o:p></span></li></ul> </ul> <p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US">If these FW knobs aren’t set on your CX7, the mlx5 HWS layer will hit exactly the “Dynamic flex parser is not supported on HWS” path you’re seeing.<o:p></o:p></span></p> <div class="MsoNormal" align="center" style="text-align:center"><span style="font-size:11.0pt;mso-fareast-language:EN-US"> <hr size="2" width="100%" align="center"> </span></div> <span style="font-size:11.0pt;font-family:"Aptos",sans-serif;mso-fareast-language:EN-US"> <ol style="margin-top:0cm" start="3" type="1"> <li class="MsoListParagraph" style="margin-left:0cm;mso-list:l3 level1 lfo4"><b><span style="font-size:11.0pt;mso-fareast-language:EN-US">What you should do<o:p></o:p></span></b></li></ol> </span> <p class="MsoNormal" style="margin-left:54.0pt;text-indent:-18.0pt;mso-list:l2 level1 lfo3"> <![if !supportLists]><span style="font-size:11.0pt;mso-fareast-language:EN-US"><span style="mso-list:Ignore">1.<span style="font:7.0pt "Times New Roman""> </span></span></span><![endif]><span dir="LTR"></span><b><span style="font-size:11.0pt;mso-fareast-language:EN-US">Verify FW flex-parser settings on the CX7:</span></b><span style="font-size:11.0pt;mso-fareast-language:EN-US"><o:p></o:p></span></p> <p class="MsoNormal" style="margin-left:90.0pt;text-indent:-18.0pt;mso-list:l2 level2 lfo3"> <![if !supportLists]><span style="font-size:10.0pt;font-family:"Courier New";mso-fareast-language:EN-US"><span style="mso-list:Ignore">o<span style="font:7.0pt "Times New Roman""> </span></span></span><![endif]><span dir="LTR"></span><span style="font-size:11.0pt;mso-fareast-language:EN-US">Use mlxconfig -d 0000:a1:00.0 -e (or equivalent) and check: <o:p></o:p></span></p> <p class="MsoNormal" style="margin-left:126.0pt;text-indent:-18.0pt;mso-list:l2 level3 lfo3"> <![if !supportLists]><span style="font-size:10.0pt;font-family:Wingdings;mso-fareast-language:EN-US"><span style="mso-list:Ignore">§<span style="font:7.0pt "Times New Roman""> </span></span></span><![endif]><span dir="LTR"></span><span style="font-size:11.0pt;mso-fareast-language:EN-US">FLEX_PARSER_PROFILE_ENABLE<o:p></o:p></span></p> <p class="MsoNormal" style="margin-left:126.0pt;text-indent:-18.0pt;mso-list:l2 level3 lfo3"> <![if !supportLists]><span style="font-size:10.0pt;font-family:Wingdings;mso-fareast-language:EN-US"><span style="mso-list:Ignore">§<span style="font:7.0pt "Times New Roman""> </span></span></span><![endif]><span dir="LTR"></span><span style="font-size:11.0pt;mso-fareast-language:EN-US">PROG_PARSE_GRAPH<o:p></o:p></span></p> <p class="MsoNormal" style="margin-left:90.0pt;text-indent:-18.0pt;mso-list:l2 level2 lfo3"> <![if !supportLists]><span style="font-size:10.0pt;font-family:"Courier New";mso-fareast-language:EN-US"><span style="mso-list:Ignore">o<span style="font:7.0pt "Times New Roman""> </span></span></span><![endif]><span dir="LTR"></span><span style="font-size:11.0pt;mso-fareast-language:EN-US">For IPv6 ext push/remove in HWS, they must be: <o:p></o:p></span></p> <p class="MsoNormal" style="margin-left:126.0pt;text-indent:-18.0pt;mso-list:l2 level3 lfo3"> <![if !supportLists]><span style="font-size:10.0pt;font-family:Wingdings;mso-fareast-language:EN-US"><span style="mso-list:Ignore">§<span style="font:7.0pt "Times New Roman""> </span></span></span><![endif]><span dir="LTR"></span><span style="font-size:11.0pt;mso-fareast-language:EN-US">FLEX_PARSER_PROFILE_ENABLE=4<o:p></o:p></span></p> <p class="MsoNormal" style="margin-left:126.0pt;text-indent:-18.0pt;mso-list:l2 level3 lfo3"> <![if !supportLists]><span style="font-size:10.0pt;font-family:Wingdings;mso-fareast-language:EN-US"><span style="mso-list:Ignore">§<span style="font:7.0pt "Times New Roman""> </span></span></span><![endif]><span dir="LTR"></span><span style="font-size:11.0pt;mso-fareast-language:EN-US">PROG_PARSE_GRAPH=1<o:p></o:p></span></p> <p class="MsoNormal" style="margin-left:54.0pt;text-indent:-18.0pt;mso-list:l2 level1 lfo3"> <![if !supportLists]><span style="font-size:11.0pt;mso-fareast-language:EN-US"><span style="mso-list:Ignore">2.<span style="font:7.0pt "Times New Roman""> </span></span></span><![endif]><span dir="LTR"></span><b><span style="font-size:11.0pt;mso-fareast-language:EN-US">If needed, update FW configuration and reboot:</span></b><span style="font-size:11.0pt;mso-fareast-language:EN-US"><o:p></o:p></span></p> <p class="MsoNormal" style="margin-left:90.0pt;text-indent:-18.0pt;mso-list:l2 level2 lfo3"> <![if !supportLists]><span style="font-size:10.0pt;font-family:"Courier New";mso-fareast-language:EN-US"><span style="mso-list:Ignore">o<span style="font:7.0pt "Times New Roman""> </span></span></span><![endif]><span dir="LTR"></span><span style="font-size:11.0pt;mso-fareast-language:EN-US">Change those values with mlxconfig, burn FW, and reboot the host (or reset the adapter) so the new profile and parse graph are applied.<o:p></o:p></span></p> <p class="MsoNormal" style="margin-left:90.0pt;text-indent:-18.0pt;mso-list:l2 level2 lfo3"> <![if !supportLists]><span style="font-size:10.0pt;font-family:"Courier New";mso-fareast-language:EN-US"><span style="mso-list:Ignore">o<span style="font:7.0pt "Times New Roman""> </span></span></span><![endif]><span dir="LTR"></span><span style="font-size:11.0pt;mso-fareast-language:EN-US">Make sure you’re using a FW/driver combo that corresponds to <b>MLNX_DPDK_22.11_24xx/25xx</b> where SRv6 push/remove is listed as supported and where FLEX_PARSER_PROFILE_ENABLE=4 is used for these actions.<o:p></o:p></span></p> <p class="MsoNormal" style="margin-left:54.0pt;text-indent:-18.0pt;mso-list:l2 level1 lfo3"> <![if !supportLists]><span style="font-size:11.0pt;mso-fareast-language:EN-US"><span style="mso-list:Ignore">3.<span style="font:7.0pt "Times New Roman""> </span></span></span><![endif]><span dir="LTR"></span><b><span style="font-size:11.0pt;mso-fareast-language:EN-US">Retry with HWS / template API:</span></b><span style="font-size:11.0pt;mso-fareast-language:EN-US"><o:p></o:p></span></p> <p class="MsoNormal" style="margin-left:90.0pt;text-indent:-18.0pt;mso-list:l2 level2 lfo3"> <![if !supportLists]><span style="font-size:10.0pt;font-family:"Courier New";mso-fareast-language:EN-US"><span style="mso-list:Ignore">o<span style="font:7.0pt "Times New Roman""> </span></span></span><![endif]><span dir="LTR"></span><span style="font-size:11.0pt;mso-fareast-language:EN-US">Your testpmd devargs and CLI are fine for this feature: <o:p></o:p></span></p> <p class="MsoNormal" style="margin-left:126.0pt;text-indent:-18.0pt;mso-list:l2 level3 lfo3"> <![if !supportLists]><span style="font-size:10.0pt;font-family:Wingdings;mso-fareast-language:EN-US"><span style="mso-list:Ignore">§<span style="font:7.0pt "Times New Roman""> </span></span></span><![endif]><span dir="LTR"></span><span style="font-size:11.0pt;mso-fareast-language:EN-US">-a 0000:a1:00.0,representor=[0-1],dv_flow_en=2 (template API / HWS)<o:p></o:p></span></p> <p class="MsoNormal" style="margin-left:126.0pt;text-indent:-18.0pt;mso-list:l2 level3 lfo3"> <![if !supportLists]><span style="font-size:10.0pt;font-family:Wingdings;mso-fareast-language:EN-US"><span style="mso-list:Ignore">§<span style="font:7.0pt "Times New Roman""> </span></span></span><![endif]><span dir="LTR"></span><span style="font-size:11.0pt;mso-fareast-language:EN-US">The set ipv6_ext_remove + pattern_template + actions_template + template_table sequence is exactly per the docs.<o:p></o:p></span></p> <p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US">If, <i>after</i> enabling FLEX_PARSER_PROFILE_ENABLE=4 and PROG_PARSE_GRAPH=1, you still get the same HWS flex-parser error on this FW version, then that specific FW build likely doesn’t expose parse_graph_flex_node / query_match_sample_info yet for SRH; in that case you’ll need to move to a FW/driver combo version where SRv6 Push/Remove Actions and FLEX_PARSER_PROFILE_ENABLE=4 are documented as supported.<o:p></o:p></span></p> <div class="MsoNormal" align="center" style="text-align:center"><span style="font-size:11.0pt;mso-fareast-language:EN-US"> <hr size="2" width="100%" align="center"> </span></div> <p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US"><o:p> </o:p></span></p> <p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US">Please let me know if above helped you solve the issue,<o:p></o:p></span></p> <p class="MsoNormal"><span lang="en-IL" style="font-size:11.0pt;mso-fareast-language:EN-US"><o:p> </o:p></span></p> <div> <p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;mso-ligatures:standardcontextual">Regards,<o:p></o:p></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;mso-ligatures:standardcontextual">Maayan Kashani<o:p></o:p></span></p> </div> <p class="MsoNormal"><span lang="en-IL" style="font-size:11.0pt;mso-fareast-language:EN-US"><o:p> </o:p></span></p> <div style="border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm 4.0pt"> <div> <div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm"> <p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Lukáš Šišmiš <sismis@dyna-nic.com> <br> <b>Sent:</b> Wednesday, 8 April 2026 14:39<br> <b>To:</b> users@dpdk.org<br> <b>Subject:</b> IPv6 remove/push on ConnectX-6/7<o:p></o:p></span></p> </div> </div> <p class="MsoNormal"><o:p> </o:p></p> <table class="MsoNormalTable" border="1" cellpadding="0" style="background:#FFEB9C"> <tbody> <tr> <td style="padding:.75pt .75pt .75pt .75pt"> <p class="MsoNormal"><b><span style="font-size:7.5pt;font-family:"Verdana",sans-serif;color:black">External email: Use caution opening links or attachments</span></b><span style="font-size:7.5pt;font-family:"Verdana",sans-serif;color:black"> </span><o:p></o:p></p> </td> </tr> </tbody> </table> <p class="MsoNormal"><o:p> </o:p></p> <div> <div> <p class="MsoNormal">Hello, <o:p></o:p></p> <div> <p class="MsoNormal"><o:p> </o:p></p> </div> <div> <p class="MsoNormal">I am trying to reproduce the usage of ipv6_ext_remove/ipv6_ext_push in the testpmd on top of MLX/NVIDIA ConnectX-6 and ConnectX-7 cards. I tried to follow <a href="https://docs.nvidia.com/networking/display/mlnxdpdk2211231051lts/template+api"> https://docs.nvidia.com/networking/display/mlnxdpdk2211231051lts/template+api</a>, but to no avail, and I couldn't find a more up-to-date guide.<o:p></o:p></p> </div> <div> <p class="MsoNormal"><o:p> </o:p></p> </div> <div> <p class="MsoNormal"><o:p> </o:p></p> </div> <div> <p class="MsoNormal">I am generally blocked by:<o:p></o:p></p> </div> <div> <p class="MsoNormal">mlx5_net: Dynamic flex parser is not supported on HWS<br> Pattern template #1 destroyed<br> port_flow_complain(): Caught PMD error type 1 (cause unspecified): cannot create IPv6 routing extension support: Operation not supported<o:p></o:p></p> </div> <div> <p class="MsoNormal"><o:p> </o:p></p> </div> <div> <p class="MsoNormal">This is my DPDK <span class="ng"><span style="border:none windowtext 1.0pt;padding:0cm">command</span></span>:<o:p></o:p></p> </div> <div> <p class="MsoNormal">```<o:p></o:p></p> </div> <div> <p class="MsoNormal">sudo dpdk-testpmd -a 0000:a1:00.0,representor=[0-1],dv_flow_en=2 -l 0,2 --file-prefix=tpmd -- -i --rxq=1 --txq=1<o:p></o:p></p> </div> <div> <p class="MsoNormal">```<o:p></o:p></p> </div> <div> <p class="MsoNormal"><o:p> </o:p></p> </div> <div> <p class="MsoNormal">These are DPDK commands:<o:p></o:p></p> </div> <div> <p class="MsoNormal">```<o:p></o:p></p> </div> <div> <p class="MsoNormal">port stop 1<br> port stop 2<br> port stop 0<br> flow configure 1 queues_number 1 queues_size 64<br> flow configure 2 queues_number 1 queues_size 64<br> flow configure 0 queues_number 1 queues_size 64<br> port start 0<br> port start 1<br> port start 2<o:p></o:p></p> </div> <div> <p class="MsoNormal"><o:p> </o:p></p> </div> <div> <p class="MsoNormal">set ipv6_ext_remove 1 ipv6_ext type is 43 / end_set<br> <br> flow pattern_template 0 create transfer relaxed no pattern_template_id 1 template represented_port ethdev_port_id is 0 / eth / ipv6 / ipv6_routing_ext / udp src is 100 / end<br> <br> flow actions_template 0 create transfer actions_template_id 1 template ipv6_ext_remove index 1 / represented_port ethdev_port_id 1 / end mask ipv6_ext_remove index 1 / represented_port ethdev_port_id 1 / end<br> <br> flow template_table 0 create group 0 priority 0 transfer table_id 1 rules_number 128 pattern_template 1 actions_template 1<o:p></o:p></p> </div> <div> <p class="MsoNormal">```<o:p></o:p></p> </div> <div> <p class="MsoNormal"><o:p> </o:p></p> </div> <div> <p class="MsoNormal">DPDK was self-compiled to 25.11. FW on 28.43.2026.<o:p></o:p></p> </div> <div> <p class="MsoNormal"><o:p> </o:p></p> </div> <div> <p class="MsoNormal">```<o:p></o:p></p> </div> <div> <p class="MsoNormal">sudo mlxfwmanager --query -d 0000:a1:00.0<o:p></o:p></p> </div> <div> <p class="MsoNormal"> Device #1: <br> ---------- <br> Device Type: ConnectX7<br> Part Number: MCX75310AAS-NEA_Ax <br> Description: NVIDIA ConnectX-7 HHHL Adapter card; 400GbE / NDR IB (default mode); Single-port OSFP; PCIe 5.0 x16; Crypto Disabled; Secure Boot Enabled; <br> PCI Device Name: 0000:a1:00.0<br> Versions: Current Available<br> FW 28.43.2026 N/A<br> PXE 3.7.0500 N/A<br> UEFI 14.36.0021 N/A<o:p></o:p></p> </div> <div> <p class="MsoNormal"><o:p> </o:p></p> </div> <div> <p class="MsoNormal">```<o:p></o:p></p> </div> <div> <p class="MsoNormal"><o:p> </o:p></p> </div> <div> <p class="MsoNormal"><o:p> </o:p></p> </div> <div> <p class="MsoNormal">Is there any updated guide on how to set it up?<o:p></o:p></p> </div> <div> <p class="MsoNormal"><o:p> </o:p></p> </div> <div> <p class="MsoNormal">Thank you.<o:p></o:p></p> </div> <div> <p class="MsoNormal">Lukas<o:p></o:p></p> </div> </div> </div> </div> </div> </body> </html>