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<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:ZH-CN">Hi Beilei:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:ZH-CN">What is the maximum number of flow rules supported by the i40e?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:ZH-CN">What about that situation: numbers of tcp connection is greater than the maximum number of flow rules.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:ZH-CN"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:ZH-CN"><o:p> </o:p></span></p>
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<p class="MsoNormal" align="left" style="text-align:left"><b><span style="font-size:11.0pt;font-family:等线;mso-fareast-language:ZH-CN">发件人<span lang="EN-US">:</span></span></b><span lang="EN-US" style="font-size:11.0pt;font-family:等线;mso-fareast-language:ZH-CN">
Xing, Beilei <beilei.xing@intel.com> <br>
</span><b><span style="font-size:11.0pt;font-family:等线;mso-fareast-language:ZH-CN">发送时间<span lang="EN-US">:</span></span></b><span lang="EN-US" style="font-size:11.0pt;font-family:等线;mso-fareast-language:ZH-CN"> 2023</span><span style="font-size:11.0pt;font-family:等线;mso-fareast-language:ZH-CN">年<span lang="EN-US">10</span>月<span lang="EN-US">18</span>日<span lang="EN-US">
9:55<br>
</span><b>收件人<span lang="EN-US">:</span></b><span lang="EN-US"> jiangheng (G) <jiangheng14@huawei.com>; users@dpdk.org<br>
</span><b>抄送<span lang="EN-US">:</span></b><span lang="EN-US"> Fanbin(Kira,2012 Blue Lab.) <fanbin12@huawei.com><br>
</span><b>主题<span lang="EN-US">:</span></b><span lang="EN-US"> RE: Whether the creatation of flow rules of i40e NIC support tcp port mask<o:p></o:p></span></span></p>
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<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt">Hi Jiangheng, <o:p>
</o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt">That’s because i40e only supports perfect match.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt">BR,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt">Beilei<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal" align="left" style="text-align:left"><b><span lang="EN-US" style="font-size:11.0pt">From:</span></b><span lang="EN-US" style="font-size:11.0pt"> jiangheng (G) <<a href="mailto:jiangheng14@huawei.com">jiangheng14@huawei.com</a>>
<br>
<b>Sent:</b> Tuesday, October 17, 2023 4:52 PM<br>
<b>To:</b> Xing, Beilei <<a href="mailto:beilei.xing@intel.com">beilei.xing@intel.com</a>>;
<a href="mailto:users@dpdk.org">users@dpdk.org</a><br>
<b>Cc:</b> Fanbin(Kira,2012 Blue Lab.) <<a href="mailto:fanbin12@huawei.com">fanbin12@huawei.com</a>><br>
<b>Subject:</b> Whether the creatation of flow rules of i40e NIC support tcp port mask<o:p></o:p></span></p>
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<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">Hi beilei</span><span style="font-family:等线;mso-fareast-language:ZH-CN">，</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">I would like to create flows using tcp port mask, but it seems
<b>only mask 0xffff or 0x0 work</b>, Does flow rlue can be created using other mask?
<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">I40e dirver was using now. <o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">Here is my code:<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> struct rte_flow_attr attr;<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> struct rte_flow_item pattern[MAX_PATTERN_NUM];<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> struct rte_flow_action action[MAX_ACTION_NUM];<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> struct rte_flow *flow = NULL;<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> struct rte_flow_action_queue queue = { .index = queue_id };<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> struct rte_flow_item_ipv4 ip_spec;<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> struct rte_flow_item_ipv4 ip_mask;<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> struct rte_flow_item_tcp tcp_spec;<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> struct rte_flow_item_tcp tcp_mask;<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> int res;<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> memset_s(pattern, sizeof(pattern), 0, sizeof(pattern));<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> memset_s(action, sizeof(action), 0, sizeof(action));<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> /*<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> * set the rule attribute.<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> * in this case only ingress packets will be checked.<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> */<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> memset_s(&attr, sizeof(struct rte_flow_attr), 0, sizeof(struct rte_flow_attr));<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> attr.ingress = 1;<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> /*<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> * create the action sequence.<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> * one action only, move packet to queue<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> */<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> action[0].type = RTE_FLOW_ACTION_TYPE_QUEUE;<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> action[0].conf = &queue;<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> action[1].type = RTE_FLOW_ACTION_TYPE_END;<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> // not limit eth header<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> pattern[0].type = RTE_FLOW_ITEM_TYPE_ETH;<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> // ip header<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> memset_s(&ip_spec, sizeof(struct rte_flow_item_ipv4), 0, sizeof(struct rte_flow_item_ipv4));<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> memset_s(&ip_mask, sizeof(struct rte_flow_item_ipv4), 0, sizeof(struct rte_flow_item_ipv4));<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> ip_spec.hdr.dst_addr = dst_ip;<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> ip_mask.hdr.dst_addr = EMPTY_MASK;<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> ip_spec.hdr.src_addr = src_ip;<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> ip_mask.hdr.src_addr = EMPTY_MASK;<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> pattern[1].type = RTE_FLOW_ITEM_TYPE_IPV4;<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> pattern[1].spec = &ip_spec;<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> pattern[1].mask = &ip_mask;<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> // tcp header, full mask 0xffff<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> memset_s(&tcp_spec, sizeof(struct rte_flow_item_tcp), 0, sizeof(struct rte_flow_item_tcp));<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> memset_s(&tcp_mask, sizeof(struct rte_flow_item_tcp), 0, sizeof(struct rte_flow_item_tcp));<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> pattern[2].type = RTE_FLOW_ITEM_TYPE_TCP; // 2: pattern 2 is tcp header<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> tcp_spec.hdr.src_port = src_port;<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> tcp_spec.hdr.dst_port = dst_port;<o:p></o:p></span></p>
<p class="MsoPlainText"><b><span lang="EN-US" style="color:red"> tcp_mask.hdr.src_port = 0xffff; // only 0xffff and 0x0 work<o:p></o:p></span></b></p>
<p class="MsoPlainText"><b><span lang="EN-US" style="color:red"> tcp_mask.hdr.dst_port = 0xffff; // only 0xffff and 0x0 work<o:p></o:p></span></b></p>
<p class="MsoPlainText"><span lang="EN-US"> pattern[2].spec = &tcp_spec;<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> pattern[2].mask = &tcp_mask;<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> /* the final level must be always type end */<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> pattern[3].type = RTE_FLOW_ITEM_TYPE_END;<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> res = rte_flow_validate(port_id, &attr, pattern, action, error);<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> if (!res) {<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> flow = rte_flow_create(port_id, &attr, pattern, action, error);<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> } else {<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> LSTACK_LOG(ERR, PORT, "rte_flow_create.rte_flow_validate error, res %d \n", res);<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> }<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">Looking forward to your favourable reply.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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