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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal><span style='font-family:"Times New Roman",serif'>Firmware updates on the HCAs are a great place to start and solve 90% of these problems.<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman",serif'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman",serif'>Thanks<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman",serif'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman",serif'>Rupert<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman",serif'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:11.0pt'>From:</span></b><span style='font-size:11.0pt'> Users <users-bounces@lists.openfabrics.org> <b>On Behalf Of </b>Michael Robbert<br><b>Sent:</b> Wednesday, April 14, 2021 2:42 PM<br><b>To:</b> users@lists.openfabrics.org<br><b>Subject:</b> [Users] Troubleshoot low LinkSpeed<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-size:11.0pt'>I just upgraded a couple of nodes in one of our clusters from CentOS 6 to CentOS 7 and after the upgrade the Infiniband connection dropped from QDR rates to DDR rates. <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>I’m trying to figure out how to troubleshoot or fix this. If anybody has seen this and knows what is going on that would be great too.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>The 2 hosts in question have QLogic IBA7322 HCAs which is using the ib_qib driver. <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>There are other hosts connected to the same switch that have the same HCA, but haven’t been upgraded from CentOS 6 to 7 yet and they are connecting at full QDR speeds. <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'>Ibstatus shows:<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'>Infiniband device 'qib0' port 1 status:<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'> default gid: fe80:0000:0000:0000:0011:7500:0070:2f82<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'> base lid: 0xb4<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'> sm lid: 0x115<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'> state: 4: ACTIVE<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'> phys state: 5: LinkUp<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'> rate: 20 Gb/sec (4X DDR)<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'> link_layer: InfiniBand<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'>ibportstate shows an active link speed of 5.0 Gbps, but also shows that 10.0 Gbps is supported<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'>[root@compute128 ~]# ibportstate 180 1 query<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>CA/RT PortInfo:<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'># Port info: Lid 180 port 1<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>LinkState:.......................Active<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>PhysLinkState:...................LinkUp<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>Lid:.............................180<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>SMLid:...........................277<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>LMC:.............................0<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>LinkWidthSupported:..............1X or 4X<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>LinkWidthEnabled:................1X or 4X<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>LinkWidthActive:.................4X<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>LinkSpeedSupported:..............2.5 Gbps or 5.0 Gbps or 10.0 Gbps<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>LinkSpeedEnabled:................2.5 Gbps or 10.0 Gbps<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>LinkSpeedActive:.................5.0 Gbps<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>Mkey:............................<not displayed><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>MkeyLeasePeriod:.................0<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>ProtectBits:.....................0<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'>I have tried changing the speed with the ibportstate command, but it fails:<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'>[root@compute128 ~]# ibportstate 180 1 speed 10<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>Initial CA/RT PortInfo:<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'># Port info: Lid 180 port 1<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>LinkState:.......................Active<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>PhysLinkState:...................LinkUp<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>Lid:.............................180<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>SMLid:...........................277<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>LMC:.............................0<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>LinkWidthSupported:..............1X or 4X<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>LinkWidthEnabled:................1X or 4X<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>LinkWidthActive:.................4X<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>LinkSpeedSupported:..............2.5 Gbps or 5.0 Gbps or 10.0 Gbps<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>LinkSpeedEnabled:................2.5 Gbps or 10.0 Gbps<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>LinkSpeedActive:.................5.0 Gbps<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>Mkey:............................<not displayed><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>MkeyLeasePeriod:.................0<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>ProtectBits:.....................0<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>ibportstate: iberror: failed: smp set portinfo failed<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'>Any thoughts on how to troubleshoot or fix this would be appreciated.<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'>Thanks,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>Mike Robbert<o:p></o:p></span></p></div></body></html>