A linux guest will be issuing messages:
[ 32.124042] DC390: Deadlock in DataIn_0: DMA aborted unfinished: 000000
bytes remain!!
[ 32.126348] DC390: DataIn_0: DMA State: 0
and the HBA will fail to work properly.
Reason is the emulation is not setting the 'DMA transfer done'
status correctly.
Signed-off-by: Hannes Reinecke <h...@suse.de>
---
hw/scsi/esp-pci.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/hw/scsi/esp-pci.c b/hw/scsi/esp-pci.c
index 82795e6..77b8647 100644
--- a/hw/scsi/esp-pci.c
+++ b/hw/scsi/esp-pci.c
@@ -268,6 +268,8 @@ static void esp_pci_dma_memory_rw(PCIESPState *pci, uint8_t
*buf, int len,
/* update status registers */
pci->dma_regs[DMA_WBC] -= len;
pci->dma_regs[DMA_WAC] += len;
+ if (pci->dma_regs[DMA_WBC] == 0)
+ pci->dma_regs[DMA_STAT] |= DMA_STAT_DONE;
}
static void esp_pci_dma_memory_read(void *opaque, uint8_t *buf, int len)
--
1.7.12.4
