<html><head></head><body>AFAIK this card is a SDR card so DDR is not possible.<br><br><div class="gmail_quote">On July 7, 2015 11:46:41 AM CEST, Fabrizio Cuseo <f.cuseo@panservice.it> wrote:<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<pre class="k9mail">Hallo.<br /><br />I am testing a Mellanox card (IBM Voltaire HCA 400Ex-D) with a cisco 4x DDR infiniband switch.<br /><br />The problem I have is that the cards (that seems to be 4X DDR) have a 10Gbit (SDR) link.<br /><br />---<br />03:00.0 InfiniBand: Mellanox Technologies MT25208 [InfiniHost III Ex] (rev 20)<br />---<br /><br />root@pve1:/etc/apt/sources.list.d# ibstat<br />CA 'mthca0'<br /> CA type: MT25208<br /> Number of ports: 2<br /> Firmware version: 5.3.0<br /> Hardware version: 20<br /> Node GUID: 0x0008f104039814d0<br /> System image GUID: 0x0008f104039814d3<br /> Port 1:<br /> State: Active<br /> Physical state: LinkUp<br /> Rate: 10<br /> Base lid: 6<br /> LMC: 0<br /> SM lid: 2<br /> Capability mask: 0x02510a68<br /> Port GUID: 0x0008f104039814d1<br /> Link layer:
InfiniBand<br /><br />--------<br /><br />root@pve1:/etc/apt/sources.list.d# ibportstate 6 0<br />CA PortInfo:<br /># Port info: Lid 6 port 0<br />LinkState:.......................Active<br />PhysLinkState:...................LinkUp<br />Lid:.............................6<br />SMLid:...........................2<br />LMC:.............................0<br />LinkWidthSupported:..............1X or 4X<br />LinkWidthEnabled:................1X or 4X<br />LinkWidthActive:.................4X<br />LinkSpeedSupported:..............2.5 Gbps<br />LinkSpeedEnabled:................2.5 Gbps<br />LinkSpeedActive:.................2.5 Gbps<br />Mkey:............................<not displayed><br />MkeyLeasePeriod:.................15<br />ProtectBits:.....................0<br /><br />-----<br /><br /><br />If I try to set the speed at DDR, I have this error:<br /><br />root@pve1:/etc/apt/sources.list.d# ibportstate 6 0 speed 2<br />Initial CA PortInfo:<br /># Port info: Lid 6 port 0<br
/>LinkState:.......................Active<br />PhysLinkState:...................LinkUp<br />Lid:.............................6<br />SMLid:...........................2<br />LMC:.............................0<br />LinkWidthSupported:..............1X or 4X<br />LinkWidthEnabled:................1X or 4X<br />LinkWidthActive:.................4X<br />LinkSpeedSupported:..............2.5 Gbps<br />LinkSpeedEnabled:................2.5 Gbps<br />LinkSpeedActive:.................2.5 Gbps<br />Mkey:............................<not displayed><br />MkeyLeasePeriod:.................15<br />ProtectBits:.....................0<br />ibportstate: iberror: failed: smp set portinfo failed<br /><br /><br />----<br /><br />The switch reported this card in infiniband topology:<br /><br />MT25218 InfiniHostEx Mellanox Technologies<br /><br /><br />Someone have tested the cards ? <br /><br />Fabrizio Cuseo<br /><br /><br /><br /><br /><br /><br /><br /></pre></blockquote></div><br>
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