User Manual

TRex 88 / 113
Loading nt3gd driver [Done]
Creating driver device file [Done]
Loading nt3gd_netdev driver [Done]
Creating driver device file [Done]
Starting NTService (this may take a while) [Done]
[bash]>/opt/napatech3/bin/ntstop.sh
Stopping NTService (this may take a while)
NTService stopped [Done]
[bash]>
7.7.1.4 Change the amount of Rx/Tx queues
The /opt/napatech3/config/ntservice.ini contain the following settings:
...
HostBuffersRx = [4,16,-1] # [x1, x2, x3], ...
HostBuffersTx = [4,16,-1] # [x1, x2, x3], ...
...
----
They need to be changed to:
[source,bash]
----
...
HostBuffersRx = [32,16,-1] # [x1, x2, x3], ...
HostBuffersTx = [32,16,-1] # [x1, x2, x3], ...
...
[bash]>sed -i -- ’s/x = \[4/x = \[32/g’ /opt/napatech3/config/ntservice.ini
[bash>
7.7.1.5 Start the Napatech driver
[bash]>/opt/napatech3/bin/ntstart.sh
Loading nt3gd driver [Done]
Creating driver device file [Done]
Loading nt3gd_netdev driver [Done]
Creating driver device file [Done]
Starting NTService (this may take a while) [Done]
[bash]>
7.7.1.6 Build with Napatech support
[bash]>cd linux_dpdk
[bash]>./b configure --with-ntacc
Setting top to : /usr/builds/trex-core
Setting out to : /usr/builds/trex-core/linux_dpdk/build_dpdk
Checking for program ’g++, c++’ : /usr/bin/g++
Checking for program ’ar’ : /usr/bin/ar
Checking for program ’gcc, cc’ : /usr/bin/gcc
Checking for program ’ar’ : /usr/bin/ar
Checking for program ’ldd’ : /usr/bin/ldd
Checking for library z : yes
Checking for OFED : Found needed version 4.0
Checking for library ibverbs : yes
Checking for NTAPI : Found needed NTAPI library
’configure’ finished successfully (14.827s)