dmaengine: refactor dmaengine around dma_async_tx_descriptor

[pandora-kernel.git] / drivers / dma / ioatdma.h

diff --git a/drivers/dma/ioatdma.h b/drivers/dma/ioatdma.h
index 62b26a9..d3f69bb 100644 (file)
--- a/drivers/dma/ioatdma.h
+++ b/drivers/dma/ioatdma.h
@@ -105,21 +105,20 @@ struct ioat_dma_chan {
 /**
  * struct ioat_desc_sw - wrapper around hardware descriptor
  * @hw: hardware DMA descriptor
- * @node:
- * @cookie:
- * @phys:
+ * @node: this descriptor will either be on the free list,
+ *     or attached to a transaction list (async_tx.tx_list)
+ * @tx_cnt: number of descriptors required to complete the transaction
+ * @async_tx: the generic software descriptor for all engines
  */
-
 struct ioat_desc_sw {
        struct ioat_dma_descriptor *hw;
        struct list_head node;
-       dma_cookie_t cookie;
-       dma_addr_t phys;
+       int tx_cnt;
        DECLARE_PCI_UNMAP_ADDR(src)
        DECLARE_PCI_UNMAP_LEN(src_len)
        DECLARE_PCI_UNMAP_ADDR(dst)
        DECLARE_PCI_UNMAP_LEN(dst_len)
+       struct dma_async_tx_descriptor async_tx;
 };
 
 #endif /* IOATDMA_H */
-