Chapter 42. Hardware Enablement

LSI Syncro CS HA-DAS adapters

Red Hat Enterprise Linux 7.1 included code in the megaraid_sas driver to enable LSI Syncro CS high-availability direct-attached storage (HA-DAS) adapters. While the megaraid_sas driver is fully supported for previously enabled adapters, the use of this driver for Syncro CS is available as a Technology Preview. Support for this adapter is provided directly by LSI, your system integrator, or system vendor. Users deploying Syncro CS on Red Hat Enterprise Linux 7.2 and later are encouraged to provide feedback to Red Hat and LSI. For more information on LSI Syncro CS solutions, please visit http://www.lsi.com/products/shared-das/pages/default.aspx. (BZ#1062759)

tss2 enables TPM 2.0 for IBM Power LE

The tss2 package adds IBM implementation of a Trusted Computing Group Software Stack (TSS) 2.0 as a Technology Preview for the IBM Power LE architecture. This package enables users to interact with TPM 2.0 devices. (BZ#1384452)

The ibmvnic device driver available as a Technology Preview

Since Red Hat Enterprise Linux 7.3, the IBM Virtual Network Interface Controller (vNIC) driver for IBM POWER architectures, ibmvnic, has been available as a Technology Preview. vNIC is a PowerVM virtual networking technology that delivers enterprise capabilities and simplifies network management. It is a high-performance, efficient technology that when combined with SR-IOV NIC provides bandwidth control Quality of Service (QoS) capabilities at the virtual NIC level. vNIC significantly reduces virtualization overhead, resulting in lower latencies and fewer server resources, including CPU and memory, required for network virtualization.
With Red Hat Enterprise Linux 7.6, the ibmvnic driver has been upgraded to version 1.0, which provides a number of bug fixes and enhancements over the previous version. Notable changes include:
  • The code that previously requested error information has been removed because no error ID is provided by the Virtual Input-Output (VIOS) Server.
  • Error reporting has been updated with the cause string. As a result, during a recovery, the driver classifies the string as a warning rather than an error.
  • Error recovery on a login failure has been fixed.
  • The failed state that occurred after a failover while migrating Logical Partitioning (LPAR) has been fixed.
  • The driver can now handle all possible login response return values.
  • A driver crash that happened during a failover or Link Power Management (LPM) if the Transmit and Receive (Tx/Rx) queues have changed has been fixed. (BZ#1519746)