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authorFinn Thain <fthain@telegraphics.com.au>2016-01-03 05:05:18 (GMT)
committerMartin K. Petersen <martin.petersen@oracle.com>2016-01-07 02:42:55 (GMT)
commitcf13b0837d7da2f3dce96e1f364fade13c8648ba (patch)
tree2c429f29d666e9321feb868f1f02762c93c83cb4 /drivers/scsi/NCR5380.c
parent1f1b0c74dfaf6264d239823ed5aeb8dcdd62838c (diff)
downloadlinux-cf13b0837d7da2f3dce96e1f364fade13c8648ba.tar.xz
ncr5380: Keep BSY asserted when entering SELECTION phase
NCR5380.c is not compliant with the SCSI-2 standard (at least, not with the draft revision 10L that I have to refer to). The selection algorithm in atari_NCR5380.c is correct, so use that. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Reviewed-by: Hannes Reinecke <hare@suse.com> Tested-by: Ondrej Zary <linux@rainbow-software.org> Tested-by: Michael Schmitz <schmitzmic@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/NCR5380.c')
-rw-r--r--drivers/scsi/NCR5380.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/scsi/NCR5380.c b/drivers/scsi/NCR5380.c
index 4ef4fc7..d51aad3 100644
--- a/drivers/scsi/NCR5380.c
+++ b/drivers/scsi/NCR5380.c
@@ -1236,7 +1236,13 @@ static int NCR5380_select(struct Scsi_Host *instance, struct scsi_cmnd *cmd)
dprintk(NDEBUG_ARBITRATION, "scsi%d : lost arbitration, deasserting MR_ARBITRATE\n", instance->host_no);
return -1;
}
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE | ICR_ASSERT_SEL);
+
+ /* After/during arbitration, BSY should be asserted.
+ * IBM DPES-31080 Version S31Q works now
+ * Tnx to Thomas_Roesch@m2.maus.de for finding this! (Roman)
+ */
+ NCR5380_write(INITIATOR_COMMAND_REG,
+ ICR_BASE | ICR_ASSERT_SEL | ICR_ASSERT_BSY);
if (!(hostdata->flags & FLAG_DTC3181E) &&
/* RvC: DTC3181E has some trouble with this