From f2427e276ffec5ce599c6bc116e0927269a360ef Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Tue, 28 Jul 2009 14:42:38 -0700 Subject: ioat: split ioat_dma_probe into core/version-specific routines Towards the removal of ioatdma_device.version split the initialization path into distinct versions. This conversion: 1/ moves version specific probe code to version specific routines 2/ removes the need for ioat_device 3/ turns off the ioat1 msi quirk if the device is reinitialized for intx Signed-off-by: Maciej Sosnowski Signed-off-by: Dan Williams --- drivers/dma/ioat/dma.h | 23 +++++++++-------------- 1 file changed, 9 insertions(+), 14 deletions(-) (limited to 'drivers/dma/ioat/dma.h') diff --git a/drivers/dma/ioat/dma.h b/drivers/dma/ioat/dma.h index 6e27ddb1e98..1226e35f270 100644 --- a/drivers/dma/ioat/dma.h +++ b/drivers/dma/ioat/dma.h @@ -61,6 +61,8 @@ * @version: version of ioatdma device * @msix_entries: irq handlers * @idx: per channel data + * @dca: direct cache access context + * @intr_quirk: interrupt setup quirk (for ioat_v1 devices) */ struct ioatdma_device { @@ -73,6 +75,8 @@ struct ioatdma_device { struct delayed_work work; struct msix_entry msix_entries[4]; struct ioat_dma_chan *idx[4]; + struct dca_provider *dca; + void (*intr_quirk)(struct ioatdma_device *device); }; /** @@ -136,25 +140,16 @@ struct ioat_desc_sw { struct dma_async_tx_descriptor txd; }; -static inline void ioat_set_tcp_copy_break(struct ioatdma_device *dev) +static inline void ioat_set_tcp_copy_break(unsigned long copybreak) { #ifdef CONFIG_NET_DMA - switch (dev->version) { - case IOAT_VER_1_2: - sysctl_tcp_dma_copybreak = 4096; - break; - case IOAT_VER_2_0: - sysctl_tcp_dma_copybreak = 2048; - break; - case IOAT_VER_3_0: - sysctl_tcp_dma_copybreak = 262144; - break; - } + sysctl_tcp_dma_copybreak = copybreak; #endif } -struct ioatdma_device *ioat_dma_probe(struct pci_dev *pdev, - void __iomem *iobase); +int ioat1_dma_probe(struct ioatdma_device *dev, int dca); +int ioat2_dma_probe(struct ioatdma_device *dev, int dca); +int ioat3_dma_probe(struct ioatdma_device *dev, int dca); 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); -- cgit v1.2.3-70-g09d2