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<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:ZH-CN">Hi jiangheng,
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:ZH-CN"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:ZH-CN">For TCP rules, it should be flow director. I remember i40e supports 8K flow director rules.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:ZH-CN">When the rule number is
</span><span style="mso-fareast-language:ZH-CN">greater than 8K, only 8k rules can be created successfully.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:ZH-CN"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:ZH-CN">BR,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:ZH-CN">Beilei</span><span style="font-size:11.0pt;mso-fareast-language:ZH-CN"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;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;mso-fareast-language:ZH-CN">From:</span></b><span style="font-size:11.0pt;mso-fareast-language:ZH-CN"> jiangheng (G) <jiangheng14@huawei.com>
<br>
<b>Sent:</b> Wednesday, October 18, 2023 10:19 AM<br>
<b>To:</b> Xing, Beilei <beilei.xing@intel.com>; users@dpdk.org; Stephen Hemminger <stephen@networkplumber.org><br>
<b>Cc:</b> Fanbin(Kira,2012 Blue Lab.) <fanbin12@huawei.com><br>
<b>Subject:</b> </span><span lang="ZH-CN" style="font-size:11.0pt;font-family:SimSun;mso-fareast-language:ZH-CN">答复</span><span style="font-size:11.0pt;mso-fareast-language:ZH-CN">: 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"><o:p> </o:p></p>
<p class="MsoNormal"><span style="mso-fareast-language:ZH-CN">Hi Beilei:<o:p></o:p></span></p>
<p class="MsoNormal"><span 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 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 style="mso-fareast-language:ZH-CN"><o:p> </o:p></span></p>
<p class="MsoNormal"><span 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 lang="ZH-CN" style="font-size:11.0pt;font-family:DengXian;mso-fareast-language:ZH-CN">发件人</span></b><b><span style="font-size:11.0pt;font-family:DengXian;mso-fareast-language:ZH-CN">:</span></b><span style="font-size:11.0pt;font-family:DengXian;mso-fareast-language:ZH-CN">
Xing, Beilei <<a href="mailto:beilei.xing@intel.com">beilei.xing@intel.com</a>> <br>
<b><span lang="ZH-CN">发送时间</span>:</b> 2023<span lang="ZH-CN">年</span>10<span lang="ZH-CN">月</span>18<span lang="ZH-CN">日</span> 9:55<br>
<b><span lang="ZH-CN">收件人</span>:</b> jiangheng (G) <<a href="mailto:jiangheng14@huawei.com">jiangheng14@huawei.com</a>>;
<a href="mailto:users@dpdk.org">users@dpdk.org</a><br>
<b><span lang="ZH-CN">抄送</span>:</b> Fanbin(Kira,2012 Blue Lab.) <<a href="mailto:fanbin12@huawei.com">fanbin12@huawei.com</a>><br>
<b><span lang="ZH-CN">主题</span>:</b> RE: 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"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Hi Jiangheng, <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">That’s because i40e only supports perfect match.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">BR,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Beilei<o:p></o:p></span></p>
<p class="MsoNormal"><span 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 style="font-size:11.0pt">From:</span></b><span 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"><o:p> </o:p></p>
<p class="MsoPlainText">Hi beilei<span lang="ZH-CN" style="font-family:DengXian;mso-fareast-language:ZH-CN">，</span><o:p></o:p></p>
<p class="MsoPlainText">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></p>
<p class="MsoPlainText">I40e dirver was using now. <o:p></o:p></p>
<p class="MsoPlainText"> <o:p></o:p></p>
<p class="MsoPlainText">Here is my code:<o:p></o:p></p>
<p class="MsoPlainText"> struct rte_flow_attr attr;<o:p></o:p></p>
<p class="MsoPlainText"> struct rte_flow_item pattern[MAX_PATTERN_NUM];<o:p></o:p></p>
<p class="MsoPlainText"> struct rte_flow_action action[MAX_ACTION_NUM];<o:p></o:p></p>
<p class="MsoPlainText"> struct rte_flow *flow = NULL;<o:p></o:p></p>
<p class="MsoPlainText"> struct rte_flow_action_queue queue = { .index = queue_id };<o:p></o:p></p>
<p class="MsoPlainText"> struct rte_flow_item_ipv4 ip_spec;<o:p></o:p></p>
<p class="MsoPlainText"> struct rte_flow_item_ipv4 ip_mask;<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"> struct rte_flow_item_tcp tcp_spec;<o:p></o:p></p>
<p class="MsoPlainText"> struct rte_flow_item_tcp tcp_mask;<o:p></o:p></p>
<p class="MsoPlainText"> int res;<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"> memset_s(pattern, sizeof(pattern), 0, sizeof(pattern));<o:p></o:p></p>
<p class="MsoPlainText"> memset_s(action, sizeof(action), 0, sizeof(action));<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"> /*<o:p></o:p></p>
<p class="MsoPlainText"> * set the rule attribute.<o:p></o:p></p>
<p class="MsoPlainText"> * in this case only ingress packets will be checked.<o:p></o:p></p>
<p class="MsoPlainText"> */<o:p></o:p></p>
<p class="MsoPlainText"> memset_s(&attr, sizeof(struct rte_flow_attr), 0, sizeof(struct rte_flow_attr));<o:p></o:p></p>
<p class="MsoPlainText"> attr.ingress = 1;<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"> /*<o:p></o:p></p>
<p class="MsoPlainText"> * create the action sequence.<o:p></o:p></p>
<p class="MsoPlainText"> * one action only, move packet to queue<o:p></o:p></p>
<p class="MsoPlainText"> */<o:p></o:p></p>
<p class="MsoPlainText"> action[0].type = RTE_FLOW_ACTION_TYPE_QUEUE;<o:p></o:p></p>
<p class="MsoPlainText"> action[0].conf = &queue;<o:p></o:p></p>
<p class="MsoPlainText"> action[1].type = RTE_FLOW_ACTION_TYPE_END;<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"> // not limit eth header<o:p></o:p></p>
<p class="MsoPlainText"> pattern[0].type = RTE_FLOW_ITEM_TYPE_ETH;<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"> // ip header<o:p></o:p></p>
<p class="MsoPlainText"> memset_s(&ip_spec, sizeof(struct rte_flow_item_ipv4), 0, sizeof(struct rte_flow_item_ipv4));<o:p></o:p></p>
<p class="MsoPlainText"> memset_s(&ip_mask, sizeof(struct rte_flow_item_ipv4), 0, sizeof(struct rte_flow_item_ipv4));<o:p></o:p></p>
<p class="MsoPlainText"> ip_spec.hdr.dst_addr = dst_ip;<o:p></o:p></p>
<p class="MsoPlainText"> ip_mask.hdr.dst_addr = EMPTY_MASK;<o:p></o:p></p>
<p class="MsoPlainText"> ip_spec.hdr.src_addr = src_ip;<o:p></o:p></p>
<p class="MsoPlainText"> ip_mask.hdr.src_addr = EMPTY_MASK;<o:p></o:p></p>
<p class="MsoPlainText"> pattern[1].type = RTE_FLOW_ITEM_TYPE_IPV4;<o:p></o:p></p>
<p class="MsoPlainText"> pattern[1].spec = &ip_spec;<o:p></o:p></p>
<p class="MsoPlainText"> pattern[1].mask = &ip_mask;<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"> // tcp header, full mask 0xffff<o:p></o:p></p>
<p class="MsoPlainText"> memset_s(&tcp_spec, sizeof(struct rte_flow_item_tcp), 0, sizeof(struct rte_flow_item_tcp));<o:p></o:p></p>
<p class="MsoPlainText"> memset_s(&tcp_mask, sizeof(struct rte_flow_item_tcp), 0, sizeof(struct rte_flow_item_tcp));<o:p></o:p></p>
<p class="MsoPlainText"> pattern[2].type = RTE_FLOW_ITEM_TYPE_TCP; // 2: pattern 2 is tcp header<o:p></o:p></p>
<p class="MsoPlainText"> tcp_spec.hdr.src_port = src_port;<o:p></o:p></p>
<p class="MsoPlainText"> tcp_spec.hdr.dst_port = dst_port;<o:p></o:p></p>
<p class="MsoPlainText"><b><span 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 style="color:red"> tcp_mask.hdr.dst_port = 0xffff; // only 0xffff and 0x0 work<o:p></o:p></span></b></p>
<p class="MsoPlainText"> pattern[2].spec = &tcp_spec;<o:p></o:p></p>
<p class="MsoPlainText"> pattern[2].mask = &tcp_mask;<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"> /* the final level must be always type end */<o:p></o:p></p>
<p class="MsoPlainText"> pattern[3].type = RTE_FLOW_ITEM_TYPE_END;<o:p></o:p></p>
<p class="MsoPlainText"> res = rte_flow_validate(port_id, &attr, pattern, action, error);<o:p></o:p></p>
<p class="MsoPlainText"> if (!res) {<o:p></o:p></p>
<p class="MsoPlainText"> flow = rte_flow_create(port_id, &attr, pattern, action, error);<o:p></o:p></p>
<p class="MsoPlainText"> } else {<o:p></o:p></p>
<p class="MsoPlainText"> LSTACK_LOG(ERR, PORT, "rte_flow_create.rte_flow_validate error, res %d \n", res);<o:p></o:p></p>
<p class="MsoPlainText"> }<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Looking forward to your favourable reply.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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