ide: allow other dma comands than read and write

Replace the is_read flag with a dma_cmd flag to allow the dma and
restart logic to handler other commands like TRIM.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

1 files changed, 7 insertions, 2 deletions

diff --git a/hw/ide/macio.c b/hw/ide/macio.c
index 7107f6b3c2..099b8cbfe9 100644
--- a/hw/ide/macio.c
+++ b/hw/ide/macio.c
@@ -145,12 +145,17 @@ static void pmac_ide_transfer_cb(void *opaque, int ret)
     io->addr += io->len;
     io->len = 0;
 
-    if (s->is_read)
+    switch (s->dma_cmd) {
+    case IDE_DMA_READ:
         m->aiocb = dma_bdrv_read(s->bs, &s->sg, sector_num,
 		                 pmac_ide_transfer_cb, io);
-    else
+        break;
+    case IDE_DMA_WRITE:
         m->aiocb = dma_bdrv_write(s->bs, &s->sg, sector_num,
 		                  pmac_ide_transfer_cb, io);
+        break;
+    }
+
     if (!m->aiocb)
         pmac_ide_transfer_cb(io, -1);
 }