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ioat3: split ioat3 support to its own file, add memset

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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 <dan.j.williams@intel.com>
This commit is contained in:
Dan Williams
2009-09-08 17:42:55 -07:00
parent 2aec048cdc
commit bf40a6869c
7 changed files with 421 additions and 84 deletions
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11
drivers/dma/ioat/dma.c
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@@ -538,17 +538,6 @@ static void ioat1_cleanup_tasklet(unsigned long data)
writew(IOAT_CHANCTRL_RUN, chan->base.reg_base + IOAT_CHANCTRL_OFFSET);
}
static void ioat_unmap(struct pci_dev *pdev, dma_addr_t addr, size_t len,
int direction, enum dma_ctrl_flags flags, bool dst)
{
if ((dst && (flags & DMA_COMPL_DEST_UNMAP_SINGLE)) ||
(!dst && (flags & DMA_COMPL_SRC_UNMAP_SINGLE)))
pci_unmap_single(pdev, addr, len, direction);
else
pci_unmap_page(pdev, addr, len, direction);
}
void ioat_dma_unmap(struct ioat_chan_common *chan, enum dma_ctrl_flags flags,
size_t len, struct ioat_dma_descriptor *hw)
{