ide-scsi: add more debugging to idescsi_pc_intr()

Add more debugging to idescsi_pc_intr() to match ide-tape's
idetape_pc_intr().

While at it:

* Correct the first debug message.

This is a preparation for adding generic ide_pc_intr() helper.

Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 11 insertions, 2 deletions

diff --git a/drivers/scsi/ide-scsi.c b/drivers/scsi/ide-scsi.c
index c0b39b9e5c14..ec9a5de2e75e 100644
--- a/drivers/scsi/ide-scsi.c
+++ b/drivers/scsi/ide-scsi.c
@@ -364,7 +364,7 @@ static ide_startstop_t idescsi_pc_intr (ide_drive_t *drive)
         u16 bcount;
         u8 stat, ireason;
 
-        debug_log("Reached %s interrupt handler\n", __func__);
+        debug_log("Enter %s - interrupt handler\n", __func__);
 
         if (pc->flags & PC_FLAG_TIMEDOUT) {
                 pc->callback(drive);
@@ -383,10 +383,16 @@ static ide_startstop_t idescsi_pc_intr (ide_drive_t *drive)
 
         if ((stat & DRQ_STAT) == 0) {
                 /* No more interrupts */
+                debug_log("Packet command completed, %d bytes transferred\n",
+                          pc->xferred);
                 pc->flags &= ~PC_FLAG_DMA_IN_PROGRESS;
                 local_irq_enable_in_hardirq();
-                if ((stat & ERR_STAT) || (pc->flags & PC_FLAG_DMA_ERROR))
+                if ((stat & ERR_STAT) || (pc->flags & PC_FLAG_DMA_ERROR)) {
+                        /* Error detected */
+                        debug_log("%s: I/O error\n", drive->name);
+
                         rq->errors++;
+                }
                 pc->callback(drive);
                 return ide_stopped;
         }
@@ -457,6 +463,9 @@ static ide_startstop_t idescsi_pc_intr (ide_drive_t *drive)
         pc->xferred += bcount;
         pc->cur_pos += bcount;
 
+        debug_log("[cmd %x] transferred %d bytes on that intr.\n",
+                  pc->c[0], bcount);
+
         /* And set the interrupt handler again */
         ide_set_handler(drive, &idescsi_pc_intr, get_timeout(pc), idescsi_expiry);
         return ide_started;