diff mbox series

[PULL,07/88] esp.c: start removal of manual STAT_TC setting when transfer counter reaches zero

Message ID 20240213194052.1162753-8-mark.cave-ayland@ilande.co.uk
State New
Headers show
Series [PULL,01/88] esp.c: don't clear cmdfifo when esp_select() fails in get_cmd() | expand

Commit Message

Mark Cave-Ayland Feb. 13, 2024, 7:39 p.m. UTC 
This should be exclusively managed by esp_set_tc() rather than being manually
set in multiple places. Start by removing the occurrences exclusive to PDMA
and command completion which are those that can be currently removed without
affecting any test images.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Tested-by: Helge Deller <deller@gmx.de>
Tested-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20240112125420.514425-8-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
---
 hw/scsi/esp.c | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)
diff mbox series

Patch

diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c
index c7b79a2949..e717b2e216 100644
--- a/hw/scsi/esp.c
+++ b/hw/scsi/esp.c
@@ -611,11 +611,6 @@  static void do_dma_pdma_cb(ESPState *s)
             s->async_len -= len;
             s->ti_size -= len;
             esp_set_tc(s, esp_get_tc(s) - len);
-
-            if (esp_get_tc(s) == 0) {
-                /* Indicate transfer to FIFO is complete */
-                 s->rregs[ESP_RSTAT] |= STAT_TC;
-            }
             return;
         }
 
@@ -720,9 +715,6 @@  static void esp_do_dma(ESPState *s)
             esp_set_tc(s, esp_get_tc(s) - len);
             esp_set_pdma_cb(s, DO_DMA_PDMA_CB);
             esp_raise_drq(s);
-
-            /* Indicate transfer to FIFO is complete */
-            s->rregs[ESP_RSTAT] |= STAT_TC;
             return;
         }
     }
@@ -870,7 +862,8 @@  void esp_command_complete(SCSIRequest *req, size_t resid)
      * transfers from the target the last byte is still in the FIFO
      */
     if (s->ti_size == 0) {
-        s->rregs[ESP_RSTAT] = STAT_TC | STAT_ST;
+        s->rregs[ESP_RSTAT] &= ~7;
+        s->rregs[ESP_RSTAT] |= STAT_ST;
         esp_dma_done(s);
         esp_lower_drq(s);
     }