fix sgl loading. there were a few issues, the main ones being:

- when the sgl grew too large it became bigger than the maximum frame size
that the ioc would deal with, and then it would just stop doing io. i was
using the wrong field from iocfacts to figure out how large an sgl should
be.
- chained sgls were broken cos i was including the current chain element in
the calculation of the offset to the next chain element.

big ok from marco@

1 files changed, 2 insertions, 1 deletions

diff --git a/sys/dev/ic/mpivar.h b/sys/dev/ic/mpivar.h
index 092ad3916ee..df848e1d94a 100644
--- a/sys/dev/ic/mpivar.h
+++ b/sys/dev/ic/mpivar.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: mpivar.h,v 1.9 2006/06/12 03:46:12 marco Exp $ */
+/*	$OpenBSD: mpivar.h,v 1.10 2006/06/12 14:06:05 dlg Exp $ */
 
 /*
  * Copyright (c) 2005 David Gwynne <dlg@openbsd.org>
@@ -102,6 +102,7 @@ struct mpi_softc {
 	int			sc_maxcmds;
 	int			sc_maxchdepth;
 	int			sc_first_sgl_len;
+	int			sc_chain_len;
 	int			sc_max_sgl_len;
 
 	int			sc_buswidth;