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 The tgpt field of the SET_ENDPOINT ioctl is obsolete now, so it is not 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. -- Asias
