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<p class="MsoNormal"><span lang="EN-US">Hi Matan<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">After rescan:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">/sys/bus/pci/devices/0000:08:00.0/ directory is recreated.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">“Ip a” command can detect the mlx5 NIC:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">37: enp8s0f0np0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:9.75pt"><span lang="EN-US">link/ether 04:e8:92:7d:dd:e4 brd ff:ff:ff:ff:ff:ff<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">How do I check the kernel netdev port you said?
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Thanks!<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><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">发件人<span lang="EN-US">:</span></span></b><span lang="EN-US" style="font-size:11.0pt;font-family:等线"> Matan Azrad <<a href="mailto:matan@mellanox.com">matan@mellanox.com</a>>
<br>
</span><b><span style="font-size:11.0pt;font-family:等线">发送时间<span lang="EN-US">:</span></span></b><span lang="EN-US" style="font-size:11.0pt;font-family:等线"> 2023</span><span style="font-size:11.0pt;font-family:等线">年<span lang="EN-US">8</span>月<span lang="EN-US">29</span>日<span lang="EN-US">
20:07<br>
</span><b>收件人<span lang="EN-US">:</span></b><span lang="EN-US"> jiangheng (G) <<a href="mailto:jiangheng14@huawei.com">jiangheng14@huawei.com</a>><br>
</span><b>主题<span lang="EN-US">:</span></b><span lang="EN-US"> RE: net_mlx5: port 2 cannot get MAC address, is mlx5_en loaded? (errno: Function not implemented)<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;mso-fareast-language:EN-US">Hi
</span><span lang="EN-US" style="font-size:11.0pt">Jiangheng</span><span lang="EN-US" style="font-size:11.0pt;mso-fareast-language:EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;mso-fareast-language:EN-US">After rescan: Do you see the kernel netdev port of the device?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;mso-fareast-language:EN-US">Matan<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;mso-fareast-language:EN-US"><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, 29 August 2023 12:59<br>
<b>To:</b> <a href="mailto:users@dpdk.org">users@dpdk.org</a>; Matan Azrad <<a href="mailto:matan@mellanox.com">matan@mellanox.com</a>><br>
<b>Cc:</b> Caowangbao <<a href="mailto:caowangbao@huawei.com">caowangbao@huawei.com</a>>; Yanan (Euler) <<a href="mailto:yanan@huawei.com">yanan@huawei.com</a>>; liaichun <<a href="mailto:liaichun@huawei.com">liaichun@huawei.com</a>><br>
<b>Subject:</b> net_mlx5: port 2 cannot get MAC address, is mlx5_en loaded? (errno: Function not implemented)<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:7.5pt;font-family:"Verdana",sans-serif;color:black">External email: Use caution opening links or attachments</span></b><span lang="EN-US" style="font-size:7.5pt;font-family:"Verdana",sans-serif;color:black">
</span><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"><span lang="EN-US" style="font-size:11.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">Hi matan:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I have enabled mlx5 hotplug based on the failsafe pmd:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">"--vdev", "net_failsafe0,mac=04:e8:92:7d:dd:e4,dev(08:00.0)", "-b", "08:00.0"<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">08:00.0 is mlx5 NIC.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">The app started successfully.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">However, I had some problems verifying the hotplug function. Here are the steps:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">echo 1 > /sys/bus/pci/devices/0000:08:00.0/remove<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">echo 1 > /sys/bus/pci/rescan<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">The app had the following error: <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">EAL: PCI device 0000:08:00.0 on NUMA socket 0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">EAL: probe driver: 15b3:1017 net_mlx5<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">net_mlx5: port 2 cannot get MAC address, is mlx5_en loaded? (errno: Function not implemented)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">net_mlx5: probe of PCI device 0000:08:00.0 aborted after encountering an error: No such device<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">EAL: Driver cannot attach the device (08:00.0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">EAL: Failed to attach device on primary process<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">net_failsafe: sub_device 0 probe failed (No such device)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Look at the code it is through the ioctl function to obtain the MAC address.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I wonder if there are other configurations that have not been done, causing this problem<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Thanks!<o:p></o:p></span></p>
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