On Fri, 21 Sep 2007 07:34:18 -0700 Seokmann Ju <seokmann.ju@xxxxxxxxxx> wrote: > Andrew Vasquez wrote: > > On Sat, 01 Sep 2007, FUJITA Tomonori wrote: > > > >> This adds target mode support to qla2xxx. > >> > >> With set ql2enable_target_mode module parameter to 1, the driver runs > >> in target mode. By default, ql2enable_target_mode is set to 0, and the > >> driver should work in initiator mode as before. > >> > >> The driver could support dual-mode in the future but it doesn't at the > >> moment (we need to add dual-mode support tgt first). > >> > >> It is based on scst qla2xxx target mode driver. Mike converted the > >> driver to use tgt long ago. I changed it to use the latest (mainline) > >> version of qla2xxx driver and tgt, and also converted it to use fc > >> transport class. > > > > Thanks for doing this. Some initial comments before a full review is > > complete, As was seen from the initiator updates needed for 24xx > > support, there are comparable changes needed in the area of > > target-mode support for 4gb and 8gb parts. Also, which ISPs and > > firmwares were exercised with this code? > The patch is still under reviewing and will get done, soon. Great, thinks! > One quick question on the patch, > The tgt core will invoke transfer_response() once it completes the command processing. > Could you point out where the actual data transfer is happening if the command required it? > I guest it should happen in scsi_tgt_kspace_exec(), but not sure where it is happening? The user-space daemon sends an mapped address then scsi_tgt_kspace_exec calls blk_rq_map_user against it. scsi_tgt_cmd_destroy calls blk_rq_unmap_user thats set pages dirty. - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
