Users Guide

Table Of Contents
19–Troubleshooting
NPAR
Doc No. BC0054508-00 Rev. R
January 21, 2021 Page 291 Copyright © 2021 Marvell
There is gap between when the pre switch-root iscsistart establishes the
connection and when iscsid takes over iSCSI connection. During this time, the OS
boot process no way to recovery the iSCSI connection. In some cases, the bnx2x
NIC interface’s link 'flaps' during this gap, the iSCSI connection is interrupted, and
the iSCSI connection recovery or retries fail.
Solution: Avoid the bnx2x NIC interface’s link flap, load the bnx2x driver with the
module parameter disable_tpa=1. Set this parameter through either a kernel
grub command line or /etc/modprobe.d/bnx2x.conf file configuration.
NPAR
Problem: The following error message appears if the storage configurations are
not consistent for all four ports of the device in NPAR mode:
PXE-M1234: NPAR block contains invalid configuration during boot.
A software defect can cause the system to be unable to BFS boot to an iSCSI or
FCoE target if an iSCSI personality is enabled on the first partition of one port,
whereas an FCoE personality is enabled on the first partition of another port. The
MBA driver performs a check for this configuration and prompts the user when it is
found.
Solution: If using the 7.6.x firmware and driver, to workaround this error,
configure the NPAR block such that if iSCSI or FCoE is enabled on the first
partition, the same must be enabled on all partitions of all four ports of that device.
Kernel Debugging Over Ethernet
Problem: When attempting to perform kernel debugging over an Ethernet
network on a Windows 8.0 or Windows Server 2012 system, the system does not
boot. This problem may occur with some adapters on systems where the
Windows 8.0 or Windows Server 2012 OS is configured for unified extensible
firmware interface (UEFI) mode. You may see a firmware error indicating that a
Non Maskable Interrupt exception was encountered during the UEFI pre-boot
environment.
Solution: Refer to the Microsoft knowledge base topic number 2920163, Non
Maskable Interrupt error during boot on a system which has been configured for
kernel debugging over Ethernet.
Miscellaneous
Problem: The 57810 10GbE NIC does not support 10Gbps or 1Gbps WoL link
speed.
Solution: The 57810 10GbE NIC can only support 100Mbps WoL link speed due
to power consumption limitations.