[ofw] ipoib patch - add support for another series of Mellanox guids.

[Tzachi Dar]

Mellanox doesn't own the  0x02ca oui.

As we have another series of cards I thought that we can use this
numbers for it.
Please note that this numbers are not used on the wire but only on the
local computer, and this is different from normal MAC addresses.

In any case we should probably use the addresses 02-02-c9 instead. The
reason for that is that the first 2 tells that this is a locally
administered address.

Thanks
Tzachi

> -----Original Message-----
> From: ofw-bounces at lists.openfabrics.org 
> [mailto:ofw-bounces at lists.openfabrics.org] On Behalf Of Hal Rosenstock
> Sent: Monday, June 30, 2008 3:18 AM
> To: Tzachi Dar
> Cc: ofw at lists.openfabrics.org
> Subject: Re: [ofw] ipoib patch - add support for another 
> series of Mellanoxguids.
> 
> On Sun, 2008-06-29 at 15:49 +0300, Tzachi Dar wrote:
> > Index: Q:/openib/trunk/ulp/ipoib/kernel/ipoib_xfr_mgr.h
> > ===================================================================
> > --- Q:/openib/trunk/ulp/ipoib/kernel/ipoib_xfr_mgr.h (revision 1301)
> > +++ Q:/openib/trunk/ulp/ipoib/kernel/ipoib_xfr_mgr.h (working copy)
> > @@ -207,21 +207,24 @@
> >  {
> >   const uint8_t *p_guid = (const uint8_t*)&port_guid;
> >   uint32_t  low24;
> > + net16_t   guid_middle;
> >  
> >   /* Port guid is in network byte order.  OUI is in lower 3 
> bytes. */
> >   ASSERT( p_guid[0] == 0x00 && p_guid[1] == 0x02 && p_guid[2] ==
> > 0xc9 );
> >  
> > - if( (port_guid & CL_HTON64( 0x000000ffff000000 )) !=
> > -  CL_HTON64(0x0000000200000000))
> > - {
> > + guid_middle = (net16_t)((port_guid & CL_HTON64
> > ( 0x000000ffff000000 )) >>24);
> > +
> > + if (guid_middle == 2) {
> > +   p_mac_addr->addr[2] = 0xc9;
> > + } else if (guid_middle == 3) {
> > +   p_mac_addr->addr[2] = 0xca;
> 
> Am I understanding this correctly ? Does Mellanox now "own" 
> OUI 0x2ca ?
> 
> -- Hal
> 
> > + } else {
> >    return IB_INVALID_GUID;
> >   }
> > -
> >   low24 = ((uint32_t)cl_ntoh64( port_guid ) & 0x00FFFFFF);
> >  
> >   p_mac_addr->addr[0] = p_guid[0];
> >   p_mac_addr->addr[1] = p_guid[1];
> > - p_mac_addr->addr[2] = p_guid[2];
> >   p_mac_addr->addr[3] = (uint8_t)(low24 >> 16);
> >   p_mac_addr->addr[4] = (uint8_t)(low24 >> 8);
> >   p_mac_addr->addr[5] = (uint8_t)low24;
> > 
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