[openib-general] performance counters in /sys

[Yaron Haviv]

> -----Original Message-----
> From: openib-general-bounces at openib.org [mailto:openib-general-
> bounces at openib.org] On Behalf Of Hal Rosenstock
> Sent: Thursday, May 19, 2005 11:22 PM
>
> On Thu, 2005-05-19 at 16:11, Mark Seger wrote:
> >
> > The only other thing that could be useful would be an extra field
for
> > the protocol, such that for a given interface/port, I could see the
> > traffic counters for each type of protocol that one might choose to
> > support, such as mpi, portals, etc.
> 
> There are no hardware counters for these. These would need to be
filled
> in somehow by software.
> 

Mark/Hal,

I believe you can use the per VL counters for that 
(IB allows counting traffic on a specific VL)
By matching ULPs to VLs (e.g. through the ib_at lib we suggested)
You can get both congestion isolation per traffic type as well as the
ability to count traffic per ULP 
(note that up to 8 VLs are supported in the Mellanox chips)

Yaron