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authorAnthony Liguori <aliguori@us.ibm.com>2012-04-10 08:16:12 -0500
committerAnthony Liguori <aliguori@us.ibm.com>2012-04-10 08:16:12 -0500
commitbb5d8dd757eaa8f9a048c5205c69bed20ea373d1 (patch)
treef4c7f7218e62f529c6406b0ad1635bef32867854 /dma-helpers.c
parent72fe3aaed94936739abfa158fa28f147b75ae9ff (diff)
parent50d30c267563bf492fd403dd23abc7888f3e220c (diff)
downloadfocaccia-qemu-bb5d8dd757eaa8f9a048c5205c69bed20ea373d1.tar.gz
focaccia-qemu-bb5d8dd757eaa8f9a048c5205c69bed20ea373d1.zip
Merge remote-tracking branch 'kwolf/for-anthony' into staging
* kwolf/for-anthony: (46 commits)
  qed: remove incoming live migration blocker
  qed: honor BDRV_O_INCOMING for incoming live migration
  migration: clear BDRV_O_INCOMING flags on end of incoming live migration
  qed: add bdrv_invalidate_cache to be called after incoming live migration
  blockdev: open images with BDRV_O_INCOMING on incoming live migration
  block: add a function to clear incoming live migration flags
  block: Add new BDRV_O_INCOMING flag to notice incoming live migration
  block stream: close unused files and update ->backing_hd
  qemu-iotests: Fix call syntax for qemu-io
  qemu-iotests: Fix call syntax for qemu-img
  qemu-iotests: Test unknown qcow2 header extensions
  qemu-iotests: qcow2.py
  sheepdog: fix send req helpers
  sheepdog: implement SD_OP_FLUSH_VDI operation
  block: bdrv_append() fixes
  qed: track dirty flag status
  qemu-img: add dirty flag status
  qed: image fragmentation statistics
  qemu-img: add image fragmentation statistics
  block: document job API
  ...
Diffstat (limited to 'dma-helpers.c')
-rw-r--r--dma-helpers.c21
1 files changed, 12 insertions, 9 deletions
diff --git a/dma-helpers.c b/dma-helpers.c
index c29ea6d3ab..7971a89c14 100644
--- a/dma-helpers.c
+++ b/dma-helpers.c
@@ -8,7 +8,6 @@
  */
 
 #include "dma.h"
-#include "block_int.h"
 #include "trace.h"
 
 void qemu_sglist_init(QEMUSGList *qsg, int alloc_hint)
@@ -42,7 +41,7 @@ typedef struct {
     BlockDriverAIOCB *acb;
     QEMUSGList *sg;
     uint64_t sector_num;
-    bool to_dev;
+    DMADirection dir;
     bool in_cancel;
     int sg_cur_index;
     dma_addr_t sg_cur_byte;
@@ -76,7 +75,8 @@ static void dma_bdrv_unmap(DMAAIOCB *dbs)
 
     for (i = 0; i < dbs->iov.niov; ++i) {
         cpu_physical_memory_unmap(dbs->iov.iov[i].iov_base,
-                                  dbs->iov.iov[i].iov_len, !dbs->to_dev,
+                                  dbs->iov.iov[i].iov_len,
+                                  dbs->dir != DMA_DIRECTION_TO_DEVICE,
                                   dbs->iov.iov[i].iov_len);
     }
     qemu_iovec_reset(&dbs->iov);
@@ -123,7 +123,8 @@ static void dma_bdrv_cb(void *opaque, int ret)
     while (dbs->sg_cur_index < dbs->sg->nsg) {
         cur_addr = dbs->sg->sg[dbs->sg_cur_index].base + dbs->sg_cur_byte;
         cur_len = dbs->sg->sg[dbs->sg_cur_index].len - dbs->sg_cur_byte;
-        mem = cpu_physical_memory_map(cur_addr, &cur_len, !dbs->to_dev);
+        mem = cpu_physical_memory_map(cur_addr, &cur_len,
+                                      dbs->dir != DMA_DIRECTION_TO_DEVICE);
         if (!mem)
             break;
         qemu_iovec_add(&dbs->iov, mem, cur_len);
@@ -170,11 +171,11 @@ static AIOPool dma_aio_pool = {
 BlockDriverAIOCB *dma_bdrv_io(
     BlockDriverState *bs, QEMUSGList *sg, uint64_t sector_num,
     DMAIOFunc *io_func, BlockDriverCompletionFunc *cb,
-    void *opaque, bool to_dev)
+    void *opaque, DMADirection dir)
 {
     DMAAIOCB *dbs = qemu_aio_get(&dma_aio_pool, bs, cb, opaque);
 
-    trace_dma_bdrv_io(dbs, bs, sector_num, to_dev);
+    trace_dma_bdrv_io(dbs, bs, sector_num, (dir == DMA_DIRECTION_TO_DEVICE));
 
     dbs->acb = NULL;
     dbs->bs = bs;
@@ -182,7 +183,7 @@ BlockDriverAIOCB *dma_bdrv_io(
     dbs->sector_num = sector_num;
     dbs->sg_cur_index = 0;
     dbs->sg_cur_byte = 0;
-    dbs->to_dev = to_dev;
+    dbs->dir = dir;
     dbs->io_func = io_func;
     dbs->bh = NULL;
     qemu_iovec_init(&dbs->iov, sg->nsg);
@@ -195,14 +196,16 @@ BlockDriverAIOCB *dma_bdrv_read(BlockDriverState *bs,
                                 QEMUSGList *sg, uint64_t sector,
                                 void (*cb)(void *opaque, int ret), void *opaque)
 {
-    return dma_bdrv_io(bs, sg, sector, bdrv_aio_readv, cb, opaque, false);
+    return dma_bdrv_io(bs, sg, sector, bdrv_aio_readv, cb, opaque,
+                       DMA_DIRECTION_FROM_DEVICE);
 }
 
 BlockDriverAIOCB *dma_bdrv_write(BlockDriverState *bs,
                                  QEMUSGList *sg, uint64_t sector,
                                  void (*cb)(void *opaque, int ret), void *opaque)
 {
-    return dma_bdrv_io(bs, sg, sector, bdrv_aio_writev, cb, opaque, true);
+    return dma_bdrv_io(bs, sg, sector, bdrv_aio_writev, cb, opaque,
+                       DMA_DIRECTION_TO_DEVICE);
 }