> I understand things correctly, means the only option is Unreliable > Datagrams.
Yes. > I'm experimenting with ud_pingpong.c and it works, but as soon as a > try to exchange messages bigger than 2048 bytes I have the following > error: > > Failed status local length error (1) for wr_id 2 > > A table in Mellanox' "RDMA Aware Networks Programming" shows that for > UDs the max messages size is limited by the MTU. That really being the > case, how can I check/change the it? UD messages are limited to a single packet. The packet MTU is a hardware/fabric property, and it is quite likely that 2048 is the maximum for your fabric. - R. -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
