On Tue, 2005-07-19 at 14:45 +0200, Arne Redlich wrote:
> Am Dienstag, den 19.07.2005, 08:18 -0400 schrieb Ming Zhang:
> > yes. we need a flag to achieve that goal. but there are 2 flags.
> >
> > [mingz@amd64 iscsitarget-0.4.11]$ grep -rn ISCSI_FLG_STATUS *
> > kernel/iscsi_hdr.h:242:#define ISCSI_FLG_STATUS 0x01
> > kernel/iscsi.c:271: rsp->flags = ISCSI_FLG_FINAL |
> > ISCSI_FLG_STATUS;
> > [mingz@amd64 iscsitarget-0.4.11]$ grep -rn ISCSI_FLG_FINAL *
> > kernel/iscsi_hdr.h:351:#define ISCSI_FLG_FINAL 0x80
> > kernel/iscsi.c:271: rsp->flags = ISCSI_FLG_FINAL |
> > ISCSI_FLG_STATUS;
> > kernel/iscsi.c:310: rsp_hdr->flags = ISCSI_FLG_FINAL;
> > kernel/iscsi.c:349: rsp_hdr->flags = ISCSI_FLG_FINAL;
> > kernel/iscsi.c:767: rsp_hdr->flags = ISCSI_FLG_FINAL;
> > kernel/iscsi.c:1029: if (scsi_cmnd->pdu.bhs.flags &
> > ISCSI_FLG_FINAL) {
> > kernel/iscsi.c:1070: if (req->flags & ISCSI_FLG_FINAL) {
> > kernel/iscsi.c:1077: if (!(req->flags & ISCSI_FLG_FINAL) &&
> > scsi_cmnd->r2t_length == 0)
> > kernel/iscsi.c:1080: if (!(req->flags & ISCSI_FLG_FINAL))
> > kernel/iscsi.c:1173: rsp_hdr->flags = ISCSI_FLG_FINAL;
> > kernel/iscsi.c:1236: rsp_hdr->flags = ISCSI_FLG_FINAL;
> > kernel/iscsi.c:1267: rsp_hdr->flags = ISCSI_FLG_FINAL;
> > kernel/iscsi.c:1423: cmnd_set_sn(cmnd, (rsp->flags &
> > ISCSI_FLG_FINAL) ? 1 : 0);
> > usr/iscsi_hdr.h:135:#define ISCSI_FLG_FINAL 0x80
> > usr/iscsid.c:605: if (req->flags & ISCSI_FLG_FINAL)
> > usr/iscsid.c:606: rsp->flags = ISCSI_FLG_FINAL;
> > usr/iscsid.c:620: rsp->flags = ISCSI_FLG_FINAL;
> >
> > see ISCSI_FLG_STATUS, only set while never be evaluated.
> > see ISCSI_FLG_FINAL, set and evaluated here and there.
>
> ISCSI_FLG_STATUS *is* evaluated - by the initiator. It's a special flag
> only used in Data-In PDUs and not to be confused with the Final bit.
~~~~~~~~~~~~~~~~~~~~~~~~~this is
exactly what i did. :P
thx!
>
> Arne
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