Chelsio Communications Terminator N310E, Installation And User Manual

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Chapter 5. Software/Driver Configuration and Fine-tuning
Chelsio Network Driver for macOS
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5.2. Kernel Tuning
5.2.1. Increasing default parameter values
To increase default parameter values on the client, edit the /etc/sysctl.conf configuration file .
For example, if the default value for
kern.ipc.maxsockbuf < 2097152
then set it in
/etc/sysctl.conf
to be 2097152.
5.2.2. Increasing mbuf cluster
If dmesg output contains outputPacket() zero segments , it means in order to support the workload,
the number of mbuf clusters available should be increased as packet drops are occurring. This
can be achieved by increasing the number of mbuf clusters using boot-args parameter
ncl .
See http://support.apple.com/kb/HT3512 for more information.
5.3. Network Device Configuration
Please refer to the operating system documentation for administration and configuration of
network devices.
5.4. cxgbtool
The app cxgbtool is used to display or change Chelsio network card settings.
Loading firmware and setting hardware registers can only be done using the master physical
function which restricts the BSD interface name that can be used as a parameter to
cxgbtool for
those commands. By default, the master physical function is associated with Port 0. The cxgbtool
command with no parameters will list the master physical function BSD interface name.
For more information, use cxgbtool help:
host:root# sudo cxgbtool -h
Some operating systems may attempt to auto-configure the detected hardware
and some may not detect all ports on a multi-port adapter. If this happens, please
refer the operating system documentation for manually configuring the network
device.
Note
Network preferences panel should be used for changing interface properties such
as active/inactive or MTU size.
Note
cxgbtool supports filtering settings on the Chelsio T3 based adapters only.
Note