diff options
| author | Maciej Sosnowski <maciej.sosnowski@intel.com> | 2008-07-23 00:30:57 (GMT) |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2008-07-23 00:30:57 (GMT) |
| commit | 7f1b358a236ee9c19657a619ac6f2dcabcaa0924 (patch) | |
| tree | 04eade38d4f8da94d7051f51875ed500b49b4756 /drivers/dma/ioatdma.h | |
| parent | 16a37acaaf4aaa631ba3f83710ed6cdb1a597520 (diff) | |
| download | linux-7f1b358a236ee9c19657a619ac6f2dcabcaa0924.tar.xz | |
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.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/dma/ioatdma.h b/drivers/dma/ioatdma.h index 685adb6..a3306d0 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 */ |