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Commit 84e66ee7 authored Aug 02, 2005 by James Bottomley Committed by James Bottomley Aug 02, 2005

[SCSI] aic7xxx: final fixes for DT handling



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.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

parent c2c96f46

drivers/scsi/aic7xxx/aic7xxx_osm.c

+4 −4

Original line number	Original line	Diff line number	Diff line
	@@ -2429,16 +2429,16 @@ static void ahc_linux_set_dt(struct scsi_target *starget, int dt)
	unsigned int ppr_options = tinfo->goal.ppr_options		unsigned int ppr_options = tinfo->goal.ppr_options
	& ~MSG_EXT_PPR_DT_REQ;		& ~MSG_EXT_PPR_DT_REQ;
	unsigned int period = tinfo->goal.period;		unsigned int period = tinfo->goal.period;
			unsigned int width = tinfo->goal.width;
	unsigned long flags;		unsigned long flags;
	struct ahc_syncrate *syncrate;		struct ahc_syncrate *syncrate;

	if (dt) {		if (dt) {
	period = 9; /* 12.5ns is the only period valid for DT */
	ppr_options \|= MSG_EXT_PPR_DT_REQ;		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 */		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,		ahc_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
	starget->channel + 'A', ROLE_INITIATOR);		starget->channel + 'A', ROLE_INITIATOR);