On 12/15/2015 04:42 PM, Hal Rosenstock wrote:
> On 12/15/2015 4:20 PM, Jason Gunthorpe wrote:
>>> The unicast/multicast extended counters are not always supported -
>>>> depends on setting of PerfMgt ClassPortInfo
>>>> CapabilityMask.IsExtendedWidthSupportedNoIETF (bit 10).
>
>> Yes.. certainly this proposed patch needs to account for that and
>> continue to use the 32 bit ones in that case.
>
> There are no 32 bit equivalents of those 4 "IETF" counters ([uni
> multi]cast [xmit rcv] pkts).
>
> When not supported, perhaps it is best not to populate these counters in
> sysfs so one can discern between counter not supported and 0 value.
>
> I'm still working on definitive mthca answer but think the attribute is
> not supported there. Does anyone out there have an mthca setup where
> they can try this ?
Yes.
--
Doug Ledford <dledford@xxxxxxxxxx>
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