Chelsio Communications Terminator Series Installation And User Manual page 115

Chapter VI. WD-UDP
Now, preload libcxgb4_sock:
[root@host~]# CXGB4_SOCK_CFG=<path to config file>
LD_PRELOAD=libcxgb4_sock.so <pathto>/your_application
In order to offload IPv6 UDP sockets, please select "low latency networking" as
Note
configuration tuning option during installation.
Running WD-UDP in debug mode
To use libcxgb4_sock's debug capabilities, use the libcxgb4_sock_debug library provided in the
package. Follow the steps mentioned below:
i. Make the following entry in the /etc/syslog.conf file:
*.debug
ii. Restart the service:
[root@host~]# /etc/init.d/syslog restart
iii. Finally, preload libcxgb4_sock_debug using the command mentioned below when starting
your application:
[root@host~]# LD_PRELOAD=libcxgb4_sock_debug.so CXGB4_SOCK_DEBUG=-1
<pathto>/your_application
Running WD-UDP with larger I/O size
If the I/O size is > 3988, execute the commands mentioned below:
[root@host~]# echo 1024 > /proc/sys/vm/nr_hugepages
[root@host~]# CXGB4_SOCK_HUGE_PAGES=1 PROT=UDP wdload
<pathto>/your_application
Chelsio Unified Wire for Linux
/var/log/cxgb4.log
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