User`s guide

Chapter VII. iSCSI PDU Offload Target
Chelsio T5/T4 Unified Wire For Linux Page 104
2. Software/Driver Loading
There are two main steps to installing the Chelsio iSCSI PDU Offload Target software. They
are:
1. Installing the iSCSI software – The majority of this section deals with how to install the
iSCSI software.
2. Configuring the iSCSI software – Information on configuring the software can be found in
a section further into this user’s guide.
2.1. Latest iSCSI Software Stack Driver Software
The iSCSI software stack comes bundled in the Chelsio Unified Wire package which can be
downloaded from the Chelsio support website (http://service.chelsio.com). The license key must
be obtained through interaction with the Chelsio sales channel and/or the support organization.
Please contact [e-mail] or [e-mail] for more information.
The iSCSI software is available for use with most installations of the Linux kernel version 2.6.
The software is dependent on the underlying NIC adapter driver and thus the limitation on what
version of the 2.6 Linux kernel it can run on is mostly dependent on the NIC driver’s limitations.
The iSCSI module will be installed in the
/lib/modules/<linux_kernel_version>/kernel/drivers/iscsi directory. The modules
database will be updated by the installer. This allows the iSCSI module to be located when
using the modprobe utility. The actual module chiscsi_t4.ko can be found inside the package
under /chiscsi-5.xxx/kernel.
The iscsictl tool and the chisns tool will be installed in /sbin. The chisns tool starts the
iSNS client. The iscsictl tool is provided for configuring and managing the iSCSI targets and
iSNS client. It also provides control for iSCSI global settings.
1. Loading the Kernel module
For RHEL distributions, run modprobe as follows:
[root@host]# modprobe chiscsi_t4
For SLES11 sp1, run modprobe as follows:
[root@host]# modprobe chiscsi_t4 --allow-unsupported