From 5cbafa65b92ee4f5b8ba915cddf94b91f186b989 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Wed, 26 Aug 2009 13:01:44 -0700 Subject: ioat2,3: convert to a true ring buffer Replace the current linked list munged into a ring with a native ring buffer implementation. The benefit of this approach is reduced overhead as many parameters can be derived from ring position with simple pointer comparisons and descriptor allocation/freeing becomes just a manipulation of head/tail pointers. It requires a contiguous allocation for the software descriptor information. Since this arrangement is significantly different from the ioat1 chain, move ioat2,3 support into its own file and header. Common routines are exported from driver/dma/ioat/dma.[ch]. Signed-off-by: Maciej Sosnowski Signed-off-by: Dan Williams --- drivers/dma/ioat/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/dma/ioat/Makefile') diff --git a/drivers/dma/ioat/Makefile b/drivers/dma/ioat/Makefile index 2ce3d3a..205a639 100644 --- a/drivers/dma/ioat/Makefile +++ b/drivers/dma/ioat/Makefile @@ -1,2 +1,2 @@ obj-$(CONFIG_INTEL_IOATDMA) += ioatdma.o -ioatdma-objs := pci.o dma.o dca.o +ioatdma-objs := pci.o dma.o dma_v2.o dca.o -- cgit v1.1