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| author | Shannon Nelson <shannon.nelson@intel.com> | 2007-10-16 10:27:40 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-16 18:43:09 +0200 |
| commit | 3e037454bcfa4b187e8293d2121bd8c0f5a5c31c (patch) | |
| tree | 751a2eace11b280cc1a19873788b778009188be9 /drivers/dma/ioatdma.h | |
| parent | I/OAT: Split PCI startup from DMA handling code (diff) | |
| download | linux-3e037454bcfa4b187e8293d2121bd8c0f5a5c31c.tar.xz linux-3e037454bcfa4b187e8293d2121bd8c0f5a5c31c.zip | |
I/OAT: Add support for MSI and MSI-X
Add support for MSI and MSI-X interrupt handling, including the ability
to choose the desired interrupt method.
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Acked-by: David S. Miller <davem@davemloft.net>
[bunk@kernel.org: drivers/dma/ioat_dma.c: make 3 functions static]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/dma/ioatdma.h')
| -rw-r--r-- | drivers/dma/ioatdma.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/dma/ioatdma.h b/drivers/dma/ioatdma.h index 0b8ffbde1e61..2abf0b88a973 100644 --- a/drivers/dma/ioatdma.h +++ b/drivers/dma/ioatdma.h @@ -28,6 +28,14 @@ #include <linux/cache.h> #include <linux/pci_ids.h> +enum ioat_interrupt { + none = 0, + msix_multi_vector = 1, + msix_single_vector = 2, + msi = 3, + intx = 4, +}; + #define IOAT_LOW_COMPLETION_MASK 0xffffffc0 /** @@ -46,6 +54,9 @@ struct ioatdma_device { struct pci_pool *completion_pool; struct dma_device common; u8 version; + enum ioat_interrupt irq_mode; + struct msix_entry msix_entries[4]; + struct ioat_dma_chan *idx[4]; }; /** @@ -94,6 +105,7 @@ struct ioat_dma_chan { u32 high; }; } *completion_virt; + struct tasklet_struct cleanup_task; }; /* wrapper around hardware descriptor format + additional software fields */ |