10GigEthr-03 (iocxgbe) B.11.31.1209 Ethernet Driver Release Notes, Edition 3
The feature is supported with the following network cards on Superdome 2 servers:
• AT094A
• AT111A
• AT118A
Support of this feature requires the following be installed on your Superdome 2 server:
• The latest version of the NIC (iocxgbe) and Fibre Channel (fcoc) drivers (B.11.31.1209
or later)
• HP-UX operating system B.11.31.1209 or later
• The latest version of the Superdome 2 firmware recipe (3.32 or later)
For more information about the OL* feature, see the Interface Card OL* Support Guide at the
following location:
http://www.hp.com/go/hpux-core-docs (select HP-UX 11i v3)
For information about the olrad command used for online addition, replacement, and deletion
of PCI I/O cards, refer to the olrad(1m) manpage on any HP-UX 11i v3 system.
New features introduced with 10GigEthr-03 (iocxgbe) B.11.31.1203.02
The 10GigEthr-03 (iocxgbe) B.11.31.1203.02 release introduces performance enhancements to
the existing driver.
New features introduced with 10GigEthr-03 (iocxgbe) B.11.31.1203
The 10GigEthr-03 (iocxgbe) B.11.31.1203 product introduced:
• Direct I/O (DIO) support
DIO gives the LAN device driver direct control of the device. This minimizes device emulation
overhead incurred with accelerated virtual I/O (AVIO). In HP-UX vPars and Integrity VM
environments, AVIO I/O devices are virtualized and do not allow the guest operating system
to directly control the hardware. With direct I/O, the LAN device driver runs on the guest and
directly controls the device. As such, direct I/O performs better than AVIO.
NOTE: Because DIO functionality has not been tested with the AT094A adapter, HP does
not support DIO with this particular adapter.
• PCI error handling and recovery
Peripheral Component Interconnect (PCI) failures account for a significant percentage of errors
in computer systems. The PCI Error Recovery (PCI ER) feature enables:
◦ Detection of PCI bus parity errors
◦ Isolation of the failed I/O path
◦ Automatic recovery of cards from errors
With this feature enabled (by default), if an error occurs on a PCI bus containing an I/O card
that supports PCI Error Recovery:
◦ The PCI bus is quarantined to isolate the system from I/O and prevent harm to the system.
◦ PCI ER attempts to recover from the error and to reinitialize the bus so that I/O can resume.
The PCI ER feature avoids system crashes, decreases system downtime, and supports
single-system high availability. For more information about PCI error handling and recovery,
see the PCI/PCIe Error Recovery Product Note at:
http://www.hp.com/go/pci-error-handling-recovery-docs
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