There is a new 0.8 release of ibsim. https://github.com/linux-rdma/ibsim/releases/tag/0.8 New features since 0.7: Extended speed support including HDR and FDR10 2x link support Link speed, espeed, and width change support Support for PortXmitWait field in PortCounters Minor changes/bug fixes as noted below All component versions are from recent master branch. Full list of changes is below. Honggang Li (18): Move sim_cmd_file function from ibsim.c to sim_cmd.c Return 'NULL' instead of '0' if function returns a pointer sim_net.c: Avoid copying garbage for vlarb in init_ports sim_cmd.c: Fix ‘orig’ may be used uninitialized in do_perf_counter_set sim_mad.c: Fix some clang compilation errors ibsim.spec.in: Append gcc into the BuildRequires tag sim_net.c: Delete placeholder 'new_hca' function sim_cmd.c: do_set_guid should dereference the char pointer sim_cmd.c: sim_cmd_file should check the char pointer before dereferencing sim_mad.c: Fix NO_EFFECT issue for do_linearforwtbl sim_net.c: Initialize the pointer sp with NULL for parse_port sim_cmd.c: Delete unused update of a value sim_net.c: Free pattern buffer in parse_port_connection_data sim_mad.c: Fix potential dereference of a null pointer in do_sl2vl sim_mad.c: Fix accessing of uninitialized memory in send_trap umad2sim.c: Fix a few potential buffer overflow issues umad2sim.c: make_path should check the return value of mkdir sim_cmd.c: Fix out of bound memory access in do_cmd Hal Rosenstock (12): Support 2x link widths Add support for HDR extended link speed sim_mad.c: Fix compile warning in do_portinfo umad2sim/umad2sim.c: Fix ibsim for latest libibumad in rdma-core net-examples: Fix commentary typos README: Updated maintainer sim_mad.c: Combine linkwidth cases in do_portinfo sim_mad.c: Combine linkspeed/linkspeedext cases in do_portinfo sim_net.c: Reduce regfree calls in parse_port_connection_data sim_cmd.c: Fix CONSTANT_EXPRESSION_RESULT in dump_route sim_mad.c: Fix a CONSTANT_EXPRESSION_RESULT in switch_lookup ibsim/ibsim.c: Bump version to 0.8 Daniel Klein (2): Add extended link speed support FDR10 link speed support Cyrille Verrier (1): Set PortCountersXmitWaitSupported flag hnrose (1): Merge pull request #1 from cyrilleverrier/master jecavil (1): Link speed, espeed, and width change support