> -----Original Message----- > From: open-iscsi@googlegroups.com [mailto:open-is...@googlegroups.com] > On Behalf Of Mike Christie > Sent: Friday, January 15, 2010 2:03 PM > To: open-iscsi > Subject: iscsi offload boot support > > Hey, > > In the open-iscsi git tree there is now offload boot support. The > driver must support ibft or OF. This means that bnx2i and cxgb3i are > supported. > If you run > > iscsistart -b > or > iscsiadm -m fw -l > > it will create sessions using the offload card that was used for boot. > > > iscsiadm -m discovery -t fw > > This will create ifaces or update existing ones with the ibft/of info > for the offload card, and it will set things up so the targets in > ibft/of are setup in the node db to accessed through the card. > > However, because I am not sure if any distros can support this and it > conflicts with the old behavior I turned it off by default. To turn it > on you need to compile the userspace code with OFFLOAD_BOOT_SUPPORTED. > > > To support this, distros or users that like pain, should add the > offlaod driver (cxgb3i or bnx2i) to the initramfs, and for bnx2i you > need to also throw in the brcm or uip (depends on the code version/base) > daemon in the initramfs and start it before running iscsistart or > iscsiadm.
If the iSCSI offload is enabled or disabled in the subsequent reboots then we will end up with duplicate iface configuration files during each boot ... A clean up of the iface configuration would be required for the same interface that undergoes change in offload/no-offload state over subsequent reboots otherwise there will be failure messages for the login through the redundant iface interface .. -Shyam
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