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authorFinn Thain <fthain@telegraphics.com.au>2016-01-03 16:05:12 +1100
committerMartin K. Petersen <martin.petersen@oracle.com>2016-01-06 21:42:54 -0500
commit3be1b3ea6de93b6b58c37dc3fafcf3ec228880ed (patch)
treed5e934bed7e63af87fef8e8a5897c3bfc7923972 /drivers/scsi/atari_NCR5380.c
parent9c3f0e2b52ada30fe72beec27b83e91e12566609 (diff)
downloadlinux-3be1b3ea6de93b6b58c37dc3fafcf3ec228880ed.tar.bz2
ncr5380: Simplify bus reset handlers
Make use of do_reset() in the bus reset handler in atari_NCR5380.c. The version in NCR5380.c already does so. Keep them in sync. 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/atari_NCR5380.c')
-rw-r--r--drivers/scsi/atari_NCR5380.c30
1 files changed, 12 insertions, 18 deletions
diff --git a/drivers/scsi/atari_NCR5380.c b/drivers/scsi/atari_NCR5380.c
index de53cda4b153..5a9974e1943c 100644
--- a/drivers/scsi/atari_NCR5380.c
+++ b/drivers/scsi/atari_NCR5380.c
@@ -719,7 +719,7 @@ static void lprint_Scsi_Cmnd(struct scsi_cmnd *cmd)
printk("\n");
}
-static void NCR5380_print_status(struct Scsi_Host *instance)
+static void __maybe_unused NCR5380_print_status(struct Scsi_Host *instance)
{
struct NCR5380_hostdata *hostdata;
struct scsi_cmnd *ptr;
@@ -2982,13 +2982,11 @@ int NCR5380_abort(struct scsi_cmnd *cmd)
}
-/*
- * Function : int NCR5380_reset (struct scsi_cmnd *cmd)
- *
- * Purpose : reset the SCSI bus.
- *
- * Returns : SUCCESS or FAILURE
+/**
+ * NCR5380_bus_reset - reset the SCSI bus
+ * @cmd: SCSI command undergoing EH
*
+ * Returns SUCCESS
*/
static int NCR5380_bus_reset(struct scsi_cmnd *cmd)
@@ -2998,22 +2996,19 @@ static int NCR5380_bus_reset(struct scsi_cmnd *cmd)
int i;
unsigned long flags;
+ local_irq_save(flags);
+
+#if (NDEBUG & NDEBUG_ANY)
+ scmd_printk(KERN_INFO, cmd, "performing bus reset\n");
NCR5380_print_status(instance);
+#endif
+
+ do_reset(instance);
- /* get in phase */
- NCR5380_write(TARGET_COMMAND_REG,
- PHASE_SR_TO_TCR(NCR5380_read(STATUS_REG)));
- /* assert RST */
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE | ICR_ASSERT_RST);
- udelay(40);
/* reset NCR registers */
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
NCR5380_write(MODE_REG, MR_BASE);
NCR5380_write(TARGET_COMMAND_REG, 0);
NCR5380_write(SELECT_ENABLE_REG, 0);
- /* ++roman: reset interrupt condition! otherwise no interrupts don't get
- * through anymore ... */
- (void)NCR5380_read(RESET_PARITY_INTERRUPT_REG);
/* After the reset, there are no more connected or disconnected commands
* and no busy units; so clear the low-level status here to avoid
@@ -3028,7 +3023,6 @@ static int NCR5380_bus_reset(struct scsi_cmnd *cmd)
if (hostdata->disconnected_queue)
dprintk(NDEBUG_ABORT, "scsi%d: reset aborted disconnected command(s)\n", H_NO(cmd));
- local_irq_save(flags);
hostdata->issue_queue = NULL;
hostdata->connected = NULL;
hostdata->disconnected_queue = NULL;