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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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