Red Hat Enterprise Linux
The tables map functions by Linux kernel and Red Hat® Enterprise Linux® version.
Red Hat Enterprise Linux 10
The functions included in Red Hat Enterprise Linux 10 are listed in lddd_r_distro_info_rhel.html#table_rhel_10_2, lddd_r_distro_info_rhel.html#table_rhel_10_1, and lddd_r_distro_info_rhel.html#table_rhel_10 .
| Name | Description | Chapter |
|---|---|---|
| Time steering | Time steering is now done in user space | TOD clock synchronization. |
| Name | Description | Chapter |
|---|---|---|
| Topology information | Provide topology-map information to user space | zmemtopo - Display memory topography. |
| Power consumption | LPAR-level power consumption | zpwr - Retrieve power readings |
| Name | Description | Chapter |
|---|---|---|
| DASD peer-to-peer remote copy | The DASD device driver can now handle devices with copy-pair relations. | Working with DASDs in a copy-pair relation. |
| DASD autoquiesce | You can control the DASD autoquiesce feature with sysfs attributes. | See Autoquiesce, Requeue, and Timeouts for autoquiesce. |
| New channel measurements | With the chpstat command, you can view channel-path statistics such as utilization and throughput, and query and control the status of the channel-path statistics function | chpstat - Display channel-path statistics. |
| Memory hotplug vmem pages | The memory hotplug subsystem provides a dedicated namespace for module parameters. | Module parameters. |
| SMC: dedicated sysctls for default r/w buffer sizes | The default buffer size is now controlled though the net.smc.[rw]mem attribute. | Setting up the SMC support |
| LCS deprecated and removed. | The LCS device driver is deprecated and information about it was removed in version 10. | The chapter about the "LAN channel station device driver" was removed. |
| Vertical CPU polarization | HiperDispatch automatically adjusts capacity values for vertical polarization. You can influence the decision making of HiperDispatch by setting sysfs attributes. | Controlling vertical polarization (HiperDispatch) |
| CPU-MF counters for IBM® z17 ™ | CPU-Measurement Facility counters for IBM z17 . | Using the CPU-measurement facilities |
| Promiscuous mode exploitation for new VFs | Read a sysfs attribute to check the FID parameter setting. | Configuring FIDPARM to support promiscuous mode on a VF |
| cpacfinfo: tool to provide CPACF information | The cpacfinfo command now displays firmware authentication information in form of a hash. | cpacfinfo - Obtain CPACF cryptographic information |
| NETD PCI function support | Includes support for direct use of PCI physical functions for NETD type network devices (for example, Network Express). |
Red Hat Enterprise Linux 9
The functions included in Red Hat Enterprise Linux 9 are listed in lddd_r_distro_info_rhel.html#table_rhel_9_6, lddd_r_distro_info_rhel.html#table_opp_kcd_pcc, and lddd_r_distro_info_rhel.html#rhel_9_3_items.
| Name | Description | Chapter |
|---|---|---|
| Vertical CPU polarization | HiperDispatch automatically adjusts capacity values for vertical polarization. You can influence the decision making of HiperDispatch by setting sysfs attributes. | Controlling vertical polarization (HiperDispatch) |
| CPU-MF counters for IBM z17 | CPU-Measurement Facility counters for IBM z17 . | Using the CPU-measurement facilities |
| Promiscuous mode exploitation for new VFs | Read a sysfs attribute to check the FID parameter setting. | Configuring FIDPARM to support promiscuous mode on a VF |
| cpacfinfo: tool to provide CPACF information | The cpacfinfo command now displays firmware authentication information in form of a hash. | cpacfinfo - Obtain CPACF cryptographic information |
| NETD PCI function support | Includes support for direct use of PCI physical functions for NETD type network devices (for example, Network Express). |
| Name | Description | Chapter |
|---|---|---|
| Secure execution AP queue binding support | The chzcrypt and lszcrypt commands have been updated to handle binding and associating requests for KVM guests running in secure-execution mode on hardware and software that supports those functions. |
| Name | Description | Chapter |
|---|---|---|
| ASD autoquiesce support (gdps) | You can now control the DASD autoquiesce feature with new sysfs attributes. | |
| hyptop update | Add real smt utilization to the hyptop command. | hyptop - Display hypervisor performance data |
| The lspai command | You can now display PAI cryptographic counters with the lspai command. | lspai - List Processor Activity Instrumentation counters |
| zcrypt command filtering | The lszcrypt command now displays whether command filtering is available for a cryptographic adapter. | lszcrypt - Display cryptographic devices |