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Commit 2bf2c568 authored May 19, 2005 by James Bottomley Committed by James Bottomley May 20, 2005

[SCSI] aic7xxx: fix U160 mode



The new period/dt setting routines don't get the coupling of these
parameters correct.  This means that Domain Validation never gets DT
set, and thus the drive gets restricted to U80.

Fix this by restoring the couplings in the set routines.

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

parent fb3089df

drivers/scsi/aic7xxx/aic7xxx_osm.c

+11 −0

Original line number	Diff line number	Diff line
		@@ -2679,6 +2679,11 @@ static void ahc_linux_set_period(struct scsi_target *starget, int period)
		if (offset == 0)
		offset = MAX_OFFSET;

		if (period < 9)
		period = 9; /* 12.5ns is our minimum */
		if (period == 9)
		ppr_options \|= MSG_EXT_PPR_DT_REQ;

		ahc_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
		starget->channel + 'A', ROLE_INITIATOR);

		@@ -2764,6 +2769,12 @@ static void ahc_linux_set_dt(struct scsi_target *starget, int dt)
		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)
		period = 10; /* if resetting DT, period must be >= 25ns */

		ahc_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
		starget->channel + 'A', ROLE_INITIATOR);
		syncrate = ahc_find_syncrate(ahc, &period, &ppr_options,AHC_SYNCRATE_DT);