10GigEthr-03 (iocxgbe) B.11.31.1303 Ethernet Driver Release Notes (Edition 3, June 2013 Update)

Known problems and limitations

The following problems are known to exist in this release:

• After system boot, link problems are seen. For example, the link is DOWN and the speed is

1Gb/s; the link status should be UP with 10Gb/s (when connected to a 10Gb link). This

problem happens with the following adapters:

◦ NC553i Integrated (LOM) FlexFabric adapter

◦ NC552m (product number: 610609–B21)

◦ NC553m (product number: 613431–B21)

The problem is not caused by the iocxgbe driver. The problem is caused by a defect in the

firmware.

Severity: High

Workaround: Update to the latest firmware for the adapter. For more information, see

“Firmware requirements” (page 11).

• Firmware update fails for Emulex ATxxx adapters on HP-UX 1209.ic383 (QXCR1001255872)

Severity: Medium

When using the nwmgr to update firmware for Emulex ATxxx adapters, if the STRMSGSZ

tunable has a non-zero value, the update might fail. The error message will indicate an invalid

argument was detected.

Workaround: Use kctune to change the STRMSGSZ value to 0.

• Problems occur when using SNAP (Sub-Network Access Protocol) encapsulation with VLANs.

(QXCR1001061473)

Severity: Medium

SNAP encapsulation enables protocols such as TCP/IP to use an IEEE802.3 SNAP header.

This protocol works correctly for non-VLAN devices. For VLAN devices, when a minimum size

SNAP packet is received and the VLAN tag is removed, the device incorrectly flags the packet

as undersized and discards it.

Workaround: None. This problem might be corrected in a future release of the 10GigEthr-03

bundle.

• Multi-queue operation is not available on all functions.

Severity: Medium

Multi-queue enables traffic to be partitioned across CPUs. The CNA supports only receive

multi-queue operation. Multiple queues are supported only on the first PCIe function for each

port: function 0 (port 0) and function 1 (port 1). The iocxgbe driver sets the number of receive

queues for each of these PCIe functions to 5. For each remaining PCIe function, the number

of queues is 1 and remains 1.

• Improper system shutdown results in a PCI error when iocxgbe devices are allocated to

guests in a DIO environment.

Severity: Low

In a DIO environment, shutting down the system improperly might result in a PCI error if

iocxgbe devices are allocated to a guest.

Workaround: To avoid this problem, shut down guests before shutting down or rebooting the

system. Follow the recommended HP-UX system shutdown and reboot procedures described

in the appropriate HP-UX administrator guide.