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authorMaciej Sosnowski <maciej.sosnowski@intel.com>2008-07-22 17:30:57 -0700
committerDan Williams <dan.j.williams@intel.com>2008-07-22 17:30:57 -0700
commit7f1b358a236ee9c19657a619ac6f2dcabcaa0924 (patch)
tree04eade38d4f8da94d7051f51875ed500b49b4756 /drivers/dma/ioatdma.h
parent16a37acaaf4aaa631ba3f83710ed6cdb1a597520 (diff)
I/OAT: I/OAT version 3.0 support
This patch adds to ioatdma and dca modules support for Intel I/OAT DMA engine ver.3 (aka CB3 device). The main features of I/OAT ver.3 are: * 8 single channel DMA devices (8 channels total) * 8 DCA providers, each can accept 2 requesters * 8-bit TAG values and 32-bit extended APIC IDs Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/dma/ioatdma.h')
-rw-r--r--drivers/dma/ioatdma.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/dma/ioatdma.h b/drivers/dma/ioatdma.h
index 685adb62aa5..a3306d0e137 100644
--- a/drivers/dma/ioatdma.h
+++ b/drivers/dma/ioatdma.h
@@ -29,7 +29,7 @@
#include <linux/pci_ids.h>
#include <net/tcp.h>
-#define IOAT_DMA_VERSION "2.18"
+#define IOAT_DMA_VERSION "3.30"
enum ioat_interrupt {
none = 0,
@@ -135,6 +135,7 @@ static inline void ioat_set_tcp_copy_break(struct ioatdma_device *dev)
#ifdef CONFIG_NET_DMA
switch (dev->version) {
case IOAT_VER_1_2:
+ case IOAT_VER_3_0:
sysctl_tcp_dma_copybreak = 4096;
break;
case IOAT_VER_2_0:
@@ -150,11 +151,13 @@ struct ioatdma_device *ioat_dma_probe(struct pci_dev *pdev,
void ioat_dma_remove(struct ioatdma_device *device);
struct dca_provider *ioat_dca_init(struct pci_dev *pdev, void __iomem *iobase);
struct dca_provider *ioat2_dca_init(struct pci_dev *pdev, void __iomem *iobase);
+struct dca_provider *ioat3_dca_init(struct pci_dev *pdev, void __iomem *iobase);
#else
#define ioat_dma_probe(pdev, iobase) NULL
#define ioat_dma_remove(device) do { } while (0)
#define ioat_dca_init(pdev, iobase) NULL
#define ioat2_dca_init(pdev, iobase) NULL
+#define ioat3_dca_init(pdev, iobase) NULL
#endif
#endif /* IOATDMA_H */