Chapter 44. 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 (BZ#1062759)

Trusted Computing Group TPM 2.0 System API library and management utilities available

The following packages provide support for the Trusted Computing Group's Trusted Platform Module (TPM) 2.0 hardware as a Technology Preview:
  • The tpm2-tss package adds the Intel implementation of the TPM 2.0 System API library. This library enables programs to interact with TPM 2.0 devices.
  • The tpm2-tools package adds a set of utilities for management and utilization of TPM 2.0 devices from user space. (BZ#1275027)

Trusted Platform Module 2.0 management utilities available

A set of utilities for the Trusted Computing Group's Trusted Platform Module (TPM) 2.0 hardware has been added as a Technology Preview in package tpm2-tools. These utilities allow management and utilization of the TPM 2.0 hardware from user space. (BZ#1275029)

tss2 enables TPM 2.0 for IBM POWER

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

NVMe over Fibre Channel is now available as a Technology Preview

The NVMe over Fibre Channel transport type is now available as a Technology Preview. NVMe over Fibre Channel is an additional fabric transport type for the Nonvolatile Memory Express (NVMe) protocol, in addition to the Remote Direct Memory Access (RDMA) protocol that was previously introduced in Red Hat Enterprise Linux.
To enable NVMe over Fibre Channel in the lpfc driver, edit the /etc/modprobe.d/lpfc.conf file and add one or both of the following options:
  • To enable the NVMe mode of operation, add the lpfc_enable_fc4_type=3 option.
  • To enable target mode, add the lpfc_enable_nvmet=<wwpn list> option, where <wwpn list> is a comma-separated list of World-Wide Port Name (WWPN) values with the 0x prefix.
To configure an NVMe target, use the nvmetcli utility.
NVMe over Fibre Channel provides a higher-performance, lower-latency I/O protocol over existing Fibre Channel infrastructure. This is especially important with solid-state storage arrays, because it allows the performance benefits of NVMe storage to be passed through the fabric transport, rather than being encapsulated in a different protocol, SCSI.
In Red Hat Enterprise Linux 7.5, NVMe over Fibre Channel is available only with Broadcom 32Gbit adapters, which use the lpfc driver. (BZ#1454386)

ibmvnic Device Driver

Starting with Red Hat Enterprise Linux 7.3, the ibmvnic Device Driver has been available as a Technology Preview for IBM POWER architectures. vNIC (Virtual Network Interface Controller) 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. (BZ#1391561, BZ#947163)