δΊ 2013-5-28 16:33, Asias He ει:
On Tue, May 28, 2013 at 10:01:14AM +0200, Paolo Bonzini wrote:
Il 28/05/2013 09:13, Wenchao Xia ha scritto:
From: Nicholas Bellinger <n...@linux-iscsi.org>
The WWPN specified in configfs is passed to "-device vhost-scsi-pci".
The tgpt field of the SET_ENDPOINT ioctl is obsolete now, so it is not
available from the QEMU command-line. Instead, I hardcode it to zero.
Hi, Paolo
Any document about how to config it correctly in configfs, before
invoking qemu with the WWPN number?
Unfortunately no, but vhost-scsi doesn't have many knobs (unlike
iSCSI for example) so it's quite simple. Here is an example:
cd /sys/kernel/config/target
mkdir -p core/fileio_0/fileio
echo 'fd_dev_name=/home/pbonzini/test.img,fd_dev_size=5905580032' >
core/fileio_0/fileio/control
echo 1 > core/fileio_0/fileio/enable
mkdir -p vhost/naa.600140554cf3a18e/tpgt_0/lun/lun_0
cd vhost/naa.600140554cf3a18e/tpgt_0
ln -sf ../../../../../core/fileio_0/fileio/ lun/lun_0/virtual_scsi_port
echo naa.60014053226f0388 > nexus
The "nexus" value is the initiator WWN. naa.600140554cf3a18e is the
target WWN that you have to pass to "-device vhost-scsi-pci".
Paolo
For me, I always use targetcli utils instead of the sysfs interface.
targetcli in F18 has vhost support now.
Thanks very much for above information, I'll try it for test.
--
Best Regards
Wenchao Xia
