From: Hannes Reinecke <h...@suse.de>
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>
Cc: qemu-sta...@nongnu.org
Signed-off-by: Paolo Bonzini <pbonz...@redhat.com>
(cherry picked from commit c3543fb5fe4520f03dd4fef04fab7745eeca1c96)
Signed-off-by: Michael Roth <mdr...@linux.vnet.ibm.com>
---
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 9971bbf..32849bd 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)
--
1.9.1
