From 584ec22759c06cdfc189c03a727f20038526245b Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Tue, 28 Jul 2009 14:32:12 -0700 Subject: ioat: move to drivers/dma/ioat/ When first created the ioat driver was the only inhabitant of drivers/dma/. Now, it is the only multi-file (more than a .c and a .h) driver in the directory. Moving it to an ioat/ subdirectory allows the naming convention to be cleaned up, and allows for future splitting of the source files by hardware version (v1, v2, and v3). Signed-off-by: Maciej Sosnowski Signed-off-by: Dan Williams --- drivers/dma/ioat/Makefile | 2 ++ 1 file changed, 2 insertions(+) create mode 100644 drivers/dma/ioat/Makefile (limited to 'drivers/dma/ioat/Makefile') diff --git a/drivers/dma/ioat/Makefile b/drivers/dma/ioat/Makefile new file mode 100644 index 000000000000..2ce3d3a4270b --- /dev/null +++ b/drivers/dma/ioat/Makefile @@ -0,0 +1,2 @@ +obj-$(CONFIG_INTEL_IOATDMA) += ioatdma.o +ioatdma-objs := pci.o dma.o dca.o -- cgit v1.2.2 From 5cbafa65b92ee4f5b8ba915cddf94b91f186b989 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Wed, 26 Aug 2009 13:01:44 -0700 Subject: ioat2,3: convert to a true ring buffer Replace the current linked list munged into a ring with a native ring buffer implementation. The benefit of this approach is reduced overhead as many parameters can be derived from ring position with simple pointer comparisons and descriptor allocation/freeing becomes just a manipulation of head/tail pointers. It requires a contiguous allocation for the software descriptor information. Since this arrangement is significantly different from the ioat1 chain, move ioat2,3 support into its own file and header. Common routines are exported from driver/dma/ioat/dma.[ch]. Signed-off-by: Maciej Sosnowski Signed-off-by: Dan Williams --- drivers/dma/ioat/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/dma/ioat/Makefile') diff --git a/drivers/dma/ioat/Makefile b/drivers/dma/ioat/Makefile index 2ce3d3a4270b..205a639e84df 100644 --- a/drivers/dma/ioat/Makefile +++ b/drivers/dma/ioat/Makefile @@ -1,2 +1,2 @@ obj-$(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 v1.2.2 From bf40a6869c9198bdf56fe173961feb89e9f0d961 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Tue, 8 Sep 2009 17:42:55 -0700 Subject: ioat3: split ioat3 support to its own file, add memset Up until this point the driver for Intel(R) QuickData Technology engines, specification versions 2 and 3, were mostly identical save for a few quirks. Version 3.2 hardware adds many new capabilities (like raid offload support) requiring some infrastructure that is not relevant for v2. For better code organization of the new funcionality move v3 and v3.2 support to its own file dma_v3.c, and export some routines from the base files (dma.c and dma_v2.c) that can be reused directly. The first new capability included in this code reorganization is support for v3.2 memset operations. 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 205a639e84df..8997d3fb9051 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 dma_v2.o dca.o +ioatdma-objs := pci.o dma.o dma_v2.o dma_v3.o dca.o -- cgit v1.2.2