Hello, Problem:-- I am trying to set the "Rate" and "MTU" in infiniband using the config file (opensm QoS) but I realize that I cannot set Rates like 500Mbps or 100Mbps. The infiniband rates start from 2.5Gbps. (IBT specification vol 1 -> page 917, Table 207 "PathRecord" )
Background:-- The reason why I need such small rates is because I interface the Infiniband HCA to an FPGA via an Infiniband physical link. Imagine the FPGA as a simple repeater that simply forwards the infiniband signals to the Target HCA. The FPGA cannot handle such a high data rate and neither do I have as much memory as required to buffer it on the FPGA (I might drop packets if the buffer becomes full). Hence I wish to limit the rate to say 100Mbps instead of 2.5Gbps. Question:- How can I set rates less than 2.5Gbps? Can this be changed at all? regards, Ashwath
_______________________________________________ ofw mailing list [email protected] http://lists.openfabrics.org/cgi-bin/mailman/listinfo/ofw
