> -----Original Message----- > From: Roland Dreier [mailto:[EMAIL PROTECTED] > Sent: Thursday, August 25, 2005 12:13 PM > To: Michael S. Tsirkin > Cc: Yaron Haviv; [email protected] > Subject: Re: RDMA connection and address translation API > > Michael> Wouldnt it be better to use some bits in the service ID > Michael> field for this? > > This would also be OK. But Annex 3 of the IBA spec has already > defined the service ID field without any reserved bits we can use. > For example, if the first byte is 0x01, then the IETF is allowed to > use any value they want for the rest of the service ID. So if we want > to keep backwards compatibility with the spec, this approach might be > difficult. >
The IB ServiceID is 64 bits and TCP is 16 bits, so we can still take some bits in the middle to define what Michael was proposing, this may be a simpler change in IBTA than changing the CM header, but both options are valid Yaron > Anyway, what's the disadvantage of using a reserved bit or two from > the CM REQ? > > - R. _______________________________________________ openib-general mailing list [email protected] http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
