diff mbox series

[61/88] esp.c: remove DATA IN phase logic when reading from FIFO

Message ID 20240112125420.514425-62-mark.cave-ayland@ilande.co.uk (mailing list archive)
State New, archived
Headers show
Series esp: rework ESP emulation to use a SCSI phase-based state machine | expand

Commit Message

Mark Cave-Ayland Jan. 12, 2024, 12:53 p.m. UTC
Whilst the FIFO is used a storage buffer for both DMA and non-DMA requests, the
loading and unloading is managed directly issuing commands to the ESP. As a
result there is no need to manually invoke the non-DMA command handler.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
---
 hw/scsi/esp.c | 11 -----------
 1 file changed, 11 deletions(-)
diff mbox series

Patch

diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c
index d71465718c..4c1ca63a57 100644
--- a/hw/scsi/esp.c
+++ b/hw/scsi/esp.c
@@ -1067,17 +1067,6 @@  uint64_t esp_reg_read(ESPState *s, uint32_t saddr)
             qemu_log_mask(LOG_UNIMP, "esp: PIO data read not implemented\n");
             s->rregs[ESP_FIFO] = 0;
         } else {
-            if (esp_get_phase(s) == STAT_DI) {
-                if (s->ti_size) {
-                    esp_do_nodma(s);
-                } else {
-                    /*
-                     * The last byte of a non-DMA transfer has been read out
-                     * of the FIFO so switch to status phase
-                     */
-                    esp_set_phase(s, STAT_ST);
-                }
-            }
             s->rregs[ESP_FIFO] = esp_fifo_pop(&s->fifo);
         }
         val = s->rregs[ESP_FIFO];