Chelsio Communications Terminator 6, Инструкция по установке и эксплуатации, Страница: 68 / 432

Chapter II. Network (NIC/TOE)
Chelsio Unified Wire for Linux 68
Software/Driver Unloading
5.1. Unloading the NIC Driver
To unload the NIC driver, run the following command:
[root@host~]# rmmod cxgb4
5.2. Unloading the TOE Driver
A reboot is required to unload the TOE driver. To avoid rebooting, follow the steps mentioned
below:
i. Load t4_tom driver with unsupported_allow_unload parameter.
[root@host~]# modprobe t4_tom unsupported_allow_unload=1
ii. Stop all the offloaded traffic, servers and connections. Check for the reference count.
[root@host~]# cat /sys/module/t4_tom/refcnt
If the reference count is 0, the driver can be directly unloaded. Skip to step (iii)
If the count is non-zero, load a COP policy which disables offload using the following procedure:
a. Create a policy file which will disable offload
[root@host~]# cat policy_file
all => !offload
b. Compile and apply the output policy file
[root@host~]# cop – o no-offload.cop policy_file
[root@host~]# cxgbtool ethX policy no-offload.cop