New Release: smc-tools v1.5

smc-tools v1.5 is now available for download here. 

Highlights in this release:

smcd/smcr: New info Command

Provides a summary of both, the SMC levels supported in the Linux kernel, and also the hardware's capabilities:

  root@tux> smcd info
  Kernel Capabilities
  SMC Version:      2.0
  SMC Hostname:     tux
  SMC-D Features:   v1 v2
  SMC-R Features:   v1

  Hardware Capabilities
  SEID:             IBM-SYSZ-ISMSEID00000000XYZ
  ISM:              v1 v2
  RoCE:             n/a

In this example output, we would be all set for SMC-Dv1 and SMC-Dv2, as we have support in the kernel and in ISM. However, SMC-R would not be available: While we have support in the kernel, we are lacking respective hardware.

New Utility smc_chk

This utility provides a couple of useful tools to check on correct SMC setup:

Verify SMC setup using an arbitrary local or remote service. E.g. start a local service with smc_chk -S and run

  root@tux> smc_chk -C 127.0.0.1 -p 37374
  Test with target IP 127.0.0.1 and port 37374
    Live test (SMC-D and SMC-R)
       Success, using SMC-D

to confirm that the host's SMC setup works, and we can connect using SMC-D as expected.

Or use smc_chk to connect to e.g. a z/OS server's 3270 port to verify SMC setup on both ends:

  root@tux> smc_chk -C 192.168.2.95 -p 23
  Test with target IP 192.168.2.95 and port 23
    Live test (SMC-D and SMC-R)
       Failed  (TCP fallback), reasons:
           Client:        0x03010000   Peer does not support SMC

Looks like the peer does not have SMC enabled in this case!

Finally, use smc_chk to display PNET IDs of arbitrary interfaces:

  root@tux> smc_chk -i enc8000
  PNET5

For more information, see the README.