In V1R13, the VTAM internal trace (VIT) table is relocated to 64-bit common (HCOMMON) storage. As a result, the IPCS subcommand VERBEXIT VTAMMAP functions are changed. VITAL does not support the ALL and ECSA operands and VTVIT does not set the DVIT, DVITC, DVITE, DVITL, and DVITO symbols. See Increased CTRACE and VIT capacity in z/OS V2R1.0 Communications Server: New Function Summary for more information.
For complete information about VIT entries, refer to z/OS V2R1.0 Communications Server: SNA Diagnosis Vol 2, FFST Dumps and the VIT.
Table 1 lists the new and changed VIT entries.
| VIT entry | Release | Description | Related support |
|---|---|---|---|
| AFSM | V2R1 | Changed: VIT record, SMC-R information added. | Shared Memory Communications over Remote Direct Memory Access |
 CCR and CCR2  |
V2R1 |
New:VIT records to trace
communication channel operations of 10GbE RoCE Express feature. |
Shared Memory Communications over RDMA adapter
(RoCE) virtualization |
| COPY and COP2 | V1R13 | Deleted: COPY and COP2 records are replaced with TOD record. | Increased CTRACE and VIT capacity |
| C64Q | V2R1 | New: VIT record for IUTC64QM macro invocations. | Shared Memory Communications over Remote Direct Memory Access |
| C642 | V2R1 | New: VIT record, a continuation of the C64Q record. | Shared Memory Communications over Remote Direct Memory Access |
| DRBx | V2R1 | New: VIT record for RoCE doorbell operations. | Shared Memory Communications over Remote Direct Memory Access |
| HCR | V2R1 | New: VIT record for RoCE hardware command operations. | Shared Memory Communications over Remote Direct Memory Access |
| HCR2 | V2R1 | New: VIT record, a continuation of the HCR record. | Shared Memory Communications over Remote Direct Memory Access |
| HCR3 | V2R1 | New: VIT record, a continuation of the HCR record. | Shared Memory Communications over Remote Direct Memory Access |
| HCR4 | V2R1 | New: VIT record, a continuation of the HCR record. | Shared Memory Communications over Remote Direct Memory Access |
| HCR5 | V2R1 | New: VIT record, a continuation of the HCR record. | Shared Memory Communications over Remote Direct Memory Access |
| IOSP | V2R1 | New: VIT record for invocations of z/OS Peripheral Component Interconnect Express (PCIe) services. | Shared Memory Communications over Remote Direct Memory Access |
| IOS2 | V2R1 | New: VIT record, a continuation of the IOSP record. | Shared Memory Communications over Remote Direct Memory Access |
| IOS3 | V2R1 | New: VIT record, a continuation of the IOSP record. | Shared Memory Communications over Remote Direct Memory Access |
| IUTR | V2R1 | New: A variation of the IUTx VIT record, specifically for IUTIL-R invocations. | Shared Memory Communications over Remote Direct Memory Access |
| IUTX | V2R1 | Changed: Added SMC-R information in existing VIT record. | Shared Memory Communications over Remote Direct Memory Access |
| ODPK | V1R12 | Changed: Added an indicator of the read queue identifier for inbound packets. | Performance improvements for sysplex distributor connection routing |
| ODTE | V2R1 | Changed: Added SMC-R information in existing VIT record. | Shared Memory Communications over Remote Direct Memory Access |
| PCIR | V2R1 | New: A variation of the PCIx record, specifically for interrupts of the 10GbE RoCE Express feature. | Shared Memory Communications over Remote Direct Memory Access |
| P64Q | V2R1 | New: VIT record for IUTP64QM macro invocations. | Shared Memory Communications over Remote Direct Memory Access |
| P642 | V2R1 | New: VIT record, a continuation of the P64Q record. | Shared Memory Communications over Remote Direct Memory Access |
| QAPL | V1R12 | New: OSA-Express QDIO or HiperSockets accelerator parameter list. | Performance improvements for sysplex distributor connection routing |
| QDIP | V1R12 | Changed: Enabled using the DIO subtrace type under the CIA trace option. You must specify SUBTRACE=DIO,OPT=CIA to enable this trace entry. Previously, this trace entry was enabled under the CIA trace option. | Performance improvements for sysplex distributor connection routing |
| QSRB | V2R1 | Changed: Added SMC-R information in existing VIT record. | Shared Memory Communications over Remote Direct Memory Access |
| V1R12 | New: OSA-Express QDIO or HiperSockets Service Request Block (SRB) event. | Performance improvements for sysplex distributor connection routing | |
| QSR2 | V1R12 | New: OSA-Express QDIO or HiperSockets Service Request Block (SRB) event (part 2). | Performance improvements for sysplex distributor connection routing |
| RAPB | V2R1 | New: VIT record for RoCE anchor cell operations. | Shared Memory Communications over Remote Direct Memory Access |
| RAP2 | V2R1 | New: VIT record, a continuation of the RAPB record. | Shared Memory Communications over Remote Direct Memory Access |
| RCPI | V2R1 | New: VIT record for RoCE input parameter list information. | Shared Memory Communications over Remote Direct Memory Access |
| RCPO | V2R1 | New: VIT record for RoCE output parameter list information. | Shared Memory Communications over Remote Direct Memory Access |
| RCP2 | V2R1 | New: VIT record, a continuation of the RCPI and RCPO records. | Shared Memory Communications over Remote Direct Memory Access |
| RCP3 | V2R1 | New: VIT record, a continuation of the RCPO record. | Shared Memory Communications over Remote Direct Memory Access |
| RPLx | V2R1 | New: VIT record for RoCE Poll operation completion. | Shared Memory Communications over Remote Direct Memory Access |
| RPLA | V2R1 | New: VIT record, a continuation of the RPLx record. | Shared Memory Communications over Remote Direct Memory Access |
| RPLI | V2R1 | New: VIT record, a continuation of the RPLA record. | Shared Memory Communications over Remote Direct Memory Access |
| RPLP | V2R1 | New: VIT record, a continuation of the RPLx record. | Shared Memory Communications over Remote Direct Memory Access |
| RPSA | V2R1 | New: VIT record, a continuation of the RPST record. | Shared Memory Communications over Remote Direct Memory Access |
| RPSI | V2R1 | New: VIT record, a continuation of the RPSA record. | Shared Memory Communications over Remote Direct Memory Access |
| RPSP | V2R1 | New: VIT record, a continuation of the RPST record. | Shared Memory Communications over Remote Direct Memory Access |
| RPST | V2R1 | New: VIT record for RoCE Post operation completion. | Shared Memory Communications over Remote Direct Memory Access |
| RPS2 | V2R1 | New: VIT record, a continuation of the RPSA record. | Shared Memory Communications over Remote Direct Memory Access |
| RSLK | V2R1 | New: VIT record for RoCE shared lock operations. | Shared Memory Communications over Remote Direct Memory Access |
| SBAL | V1R12 | Changed: Added direction indicator and write queue priority for outbound packets and added a read queue identifier for inbound packets. | Performance improvements for sysplex distributor connection routing |
| SLSB | V1R12 | Changed: Added direction indicator and read queue identifier for inbound packets. | Performance improvements for sysplex distributor connection routing |
| TOD | V2R1 | Changed: Added CPU ID information. | Shared Memory Communications over Remote Direct Memory Access |
| V1R13 | New: Time of day snapshot. | Increased CTRACE and VIT capacity | |
| VHCR, VHC2, VHC3, VHC4 and VHC5 |
V2R1 |
New: VIT records to trace VHCR commands
of 10GbE RoCE Express feature when the feature operates in
a shared RoCE environment. |
Shared Memory Communications over RDMA adapter
(RoCE) virtualization |