[openib-general] VAPI like API

Sean Hefty mshefty at ichips.intel.com
Thu Jul 29 09:04:36 PDT 2004


On Thu, 29 Jul 2004 09:58:42 -0400
Hal Rosenstock <halr at voltaire.com> wrote:

> Sean Hefty wrote:
> > On Wed, 28 Jul 2004 08:17:40 -0400
> > "Rimmer, Todd" <trimmer at infiniconsys.com> wrote:
> >> A few more updates:
> >> - added neighbor_mtu to ib_device_port.
> 
> Would ib_port be sufficient as a name rather than ib_device_port ?

I'm okay with this.  Any objections?
 
> >> max_mtu is the hardware
> >> capability while neighbor_mtu is the configured active MTU for a
> >> Armed/Active port.
> >
> > Do we need to distinguish between the HW versus active MTUs?  Seems
> > like only the active MTU is usable.
> 
> Yes, only the active (neighbor) MTU is usable but the max_mtu is used by the
> SM
> to determine a compatible neighbor MTU at both ends of each link.

Okay - I'll add an active_mtu field to ib_[device]_port.  (I like the name active better than neighbor, since the value should be the minimum of the local and remote MTUs.)



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