Hi, I am referring to Section 4.1.1 of IB Spec which talks about "GID Usage AND Properties". Does anyone know whether or not SM uses item # 3 below for the address assignment and who are all the vendor supports # 3? Can anybody points me to the appropriate driver documentation in this area?
Thanks Ashish GID USAGE AND PROPERTIES 1) Each endport shall be assigned at least one unicast GID. The first unicast GID assigned shall be created using the manufacturer assigned EUI-64 identifier. This GID is referred to as GID index 0 and is formed by techniques 3(a) and 3(b) described below. 2) The default GID prefix shall be (0xFE80::0). A packet using the default GID prefix and either a manufacturer assigned or SM assigned EUI-64 must always be accepted by an endnode. A packet containing a GRH with a destination GID with this prefix must never be forwarded by a router, i.e. it is restricted to the local subnet. 3) A unicast GID shall be created using one or more of the following mechanisms: a) Concatenation of the default GID prefix with the manufacturer assigned EUI-64 identifier associated with an endport. This GID is referred to as the default GID. b) Concatenation of a subnet manager assigned 64-bit GID prefix and the manufacturer assigned EUI-64 identifier associated with an endport. c) Assignment of a GID by the subnet manager. The subnet manager creates a GID by concatenating the GID prefix (default or assigned) with a set of locally assigned EUI-64 values (at GID index 1 or above). Each endport must be assigned at least one unicast GID using (a). Additional GIDs may be assigned using (b) and/or (c). Note: A subnet shall only have one assigned GID prefix (non default) at any given time. _______________________________________________ openib-general mailing list openib-general@openib.org http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
