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[SCSI] aic7xxx: final fixes for DT handling

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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>
This commit is contained in:
James Bottomley 2005-08-02 09:32:17 -05:00 committed by James Bottomley
parent c2c96f46f4
commit 84e66ee7ec
1 changed files with 4 additions and 4 deletions
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8
drivers/scsi/aic7xxx/aic7xxx_osm.c
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@ -2429,16 +2429,16 @@ static void ahc_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;
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);