On Wed, 2 Sep 2009 15:39:52 -0700 (PDT) charles zhuang <cjiazhuang@xxxxxxxxx> wrote: > I think for iscsi tcp and iscsi iser, everything is in user space, > so I only need tgtd daemon with tgtadm to configure it. Is my > understanding correct? Yes, > If so, what modification that stgt project has done to linux kernel > side and when do we need the kernel components? My guess is that the > kernel components are only needed in srp, which we need scsi_tgt.ko > (tgt core) and scsi_transport_srp.ko. Is it correct? It isn't. scsi_tgt.ko is for tgt's kernel-space drivers (e.g. drivers/scsi/ibmvscsi/ibmvstgt.c) drivers/scsi/ibmvscsi/ibmvstgt.c uses scsi_transport_srp. If you are interested in other potential tgt's kernel-space drivers, see: http://stgt.berlios.de/ We don't need tgt kernel driver for Infiniband SRP; a user-space driver should work fine. > I am looking for a solution that I can move the iscsi state machine > back to kernel, so really appreciate if there's some more > elaboration on how scsi_tgt.ko core interact with the kernel. If you are looking for the iSCSI state machine in kernel, I recommend IET, SCST, core-iscsi, etc. -- To unsubscribe from this list: send the line "unsubscribe stgt" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
