Cisco Systems 5709 Manual De Usuario
NetXtreme II
User Guide
January 2010
Bro a d c o m C o rp o r a ti o n
Page 138
Linux iSCSI Offload
Document
ENGSRVT52-CDUM100-R
B
IND
I
SCSI T
ARGET
TO
B
ROADCOM
NX2
I
SCSI T
RANSPORT
N
AME
By default, the open-iscsi daemon connects to discovered targets using software initiator (transport name = 'tcp'). Users who
wish to offload iSCSI connection onto CNIC device should explicitly change transport binding of the iSCSI node. This can
be done using iscsiadm cli utility as follows,
wish to offload iSCSI connection onto CNIC device should explicitly change transport binding of the iSCSI node. This can
be done using iscsiadm cli utility as follows,
iscsiadm --mode node --targetname iqn.2004-06.com.broadcom:tg1 \
--portal 192.168.1.100 --op=update \
--name=node.transport_name --value=${XPORT_NAME}
where XPORT_NAME=bcm570x-xxyyzz
xx - pci bus number of the NX2 device
yy - pci device number of the NX2 device
zz - pci function number of the NX2 device
Network interface to iscsi transport name binding can be obtained by executing the following.
dmesg | grep "bnx2i: netif"
Sample output in a system with two NetXtreme II devices:
bnx2i: netif=eth1, iscsi=bcm570x-050000
bnx2i: netif=eth0, iscsi=bcm570x-030000
If you wish to switch back to use the software initiator, use the following:
iscsiadm --mode node --targetname iqn.2004-06.com.broadcom:tg1 \
--portal 192.168.1.100 --op=update \
--name=node.transport_name --value=tcp
M
AKING
C
ONNECTIONS
TO
I
SCSI T
ARGETS
Refer to open-iscsi documentation for a comprehensive list of iscsiadm commands. This is a sample list of commands to
discovery targets and to create iscsi connections to a target.
discovery targets and to create iscsi connections to a target.
Add static entry
iscsiadm -m node -p <ipaddr[:port]> -T iqn.2007-05.com.broadcom:target1 -o new
iSCSI target discovery using 'SendTargets'
iscsiadm -m discovery --type sendtargets -p <ipaddr[:port]>
Login to target using 'iscsiadm' command
iscsiadm --mode node --targetname <iqn.targetname> --portal <ipaddr[:port]> --login
List all drives active in the system
'fdisk -l'