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Commit 52b5cfb3 authored by Hannes Reinecke's avatar Hannes Reinecke Committed by James Bottomley
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[SCSI] aic79xx: fixup DT setting 



this patch is just a cross-port of the fixup for aic7xxx DT settings.
As the same restrictions apply for aic79xx also (DT requires wide
transfers) the dt setting routine should be modified equivalently.
And an invalid period setting will be caught by ahd_find_syncrate()
anyway.

Signed-off-by: default avatarJames Bottomley <James.Bottomley@SteelEye.com>
parent 88ff29a4

drivers/scsi/aic7xxx/aic79xx_osm.c

+3 −2
Original line number Diff line number Diff line
@@ -2440,6 +2440,7 @@ static void ahd_linux_set_dt(struct scsi_target *starget, int dt) 
	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;



#ifdef AHD_DEBUG
@@ -2449,8 +2450,8 @@ static void ahd_linux_set_dt(struct scsi_target *starget, int dt) 
#endif

	if (dt) {

		ppr_options |= MSG_EXT_PPR_DT_REQ;

		if (period > 9)

			period = 9; /* at least 12.5ns for DT */

		if (!width)

			ahd_linux_set_width(starget, 1);

	} else {

		if (period <= 9)

			period = 10; /* If resetting DT, period must be >= 25ns */