The aic7xxx can support Data Group transfers at periods > 12.5, so eliminate that restriction. Additionally wide is a requirement for DT so ensure wide is set if users request DT. James diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c --- a/drivers/scsi/aic7xxx/aic7xxx_osm.c +++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c @@ -2429,16 +2432,16 @@ static void ahc_linux_set_dt(struct scsi unsigned int ppr_options = tinfo->goal.ppr_options & ~MSG_EXT_PPR_DT_REQ; unsigned int period = tinfo->goal.period; + unsigned int width = tinfo->goal.width; unsigned long flags; struct ahc_syncrate *syncrate; if (dt) { - period = 9; /* 12.5ns is the only period valid for DT */ ppr_options |= MSG_EXT_PPR_DT_REQ; - } else if (period == 9) { + if (!width) + ahc_linux_set_width(starget, 1); + } else if (period == 9) period = 10; /* if resetting DT, period must be >= 25ns */ - ppr_options &= ~MSG_EXT_PPR_DT_REQ; - } ahc_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, starget->channel + 'A', ROLE_INITIATOR); - : 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