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esp.c: copy logic for do_cmd transfers from do_dma_pdma_cb() to esp_do_dma()

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This is so that PDMA transfers can be performend by esp_do_dma() as well as
do_dma_pdma_cb().

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: <20240112125420.514425-34-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
This commit is contained in:
Mark Cave-Ayland 2024-01-12 12:53:25 +00:00
parent 19e9afb1a3
commit 3c7f3c8b57
1 changed files with 10 additions and 1 deletions
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11
hw/scsi/esp.c
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@ -656,9 +656,18 @@ static void esp_do_dma(ESPState *s)
fifo8_push_all(&s->cmdfifo, buf, len);
esp_set_tc(s, esp_get_tc(s) - len);
} else {
n = esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fifo));
n = MIN(fifo8_num_free(&s->cmdfifo), n);
fifo8_push_all(&s->cmdfifo, buf, n);
esp_set_tc(s, esp_get_tc(s) - n);
esp_set_pdma_cb(s, DO_DMA_PDMA_CB);
esp_raise_drq(s);
return;
/* Ensure we have received complete command after SATN and stop */
if (esp_get_tc(s) || fifo8_is_empty(&s->cmdfifo)) {
return;
}
}
trace_esp_handle_ti_cmd(cmdlen);
s->ti_size = 0;