1.10.3.  Configuring an iface for iSCSI Offload

By default, iscsiadm will create an iface configuration for each Chelsio, Broadcom, and ServerEngines port. To view available iface configurations, use the same command for doing so in software iSCSI, i.e. iscsiadm -m iface.

Before using the iface of a network card for iSCSI offload, first set the IP address (target_IP^[1]) that the device should use. For ServerEngines devices that use the be2iscsi driver (i.e. ServerEngines iSCSI HBAs), the IP address is configured in the ServerEngines BIOS setup screen.

For Chelsio and Broadcom devices, the procedure for configuring the IP address is the same as for any other iface setting. So to configure the IP address of the iface, use:

iscsiadm -m iface -I iface_name -o update -n iface.ipaddress -v target_IP

For example, to set the iface IP address of a Chelsio card (with iface name cxgb3i.00:07:43:05:97:07) to 20.15.0.66, use:

iscsiadm -m iface -I cxgb3i.00:07:43:05:97:07 -o update -n iface.ipaddress -v 20.15.0.66