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authorDan Williams <dan.j.williams@intel.com>2009-09-08 17:42:57 -0700
committerDan Williams <dan.j.williams@intel.com>2009-09-08 17:42:57 -0700
commitb094ad3be564e7cc59cca4ff0256550d3a55dd3b (patch)
treed69f515b2ee6af2b0f12bb3028d7c7f5b3390794 /drivers/dma/ioat/dma_v2.c
parente61dacaeb3918cd00cd642e8fb0828324ac59819 (diff)
ioat3: xor support
ioat3.2 adds xor offload support for up to 8 sources. It can also perform an xor-zero-sum operation to validate whether all given sources sum to zero, without writing to a destination. Xor descriptors differ from memcpy in that one operation may require multiple descriptors depending on the number of sources. When the number of sources exceeds 5 an extended descriptor is needed. These descriptors need to be accounted for when updating the DMA_COUNT register. Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/dma/ioat/dma_v2.c')
-rw-r--r--drivers/dma/ioat/dma_v2.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/dma/ioat/dma_v2.c b/drivers/dma/ioat/dma_v2.c
index 80ce32de8d3..ee295d48ba2 100644
--- a/drivers/dma/ioat/dma_v2.c
+++ b/drivers/dma/ioat/dma_v2.c
@@ -48,7 +48,7 @@ module_param(ioat_ring_max_alloc_order, int, 0644);
MODULE_PARM_DESC(ioat_ring_max_alloc_order,
"ioat2+: upper limit for dynamic ring resizing (default: n=16)");
-static void __ioat2_issue_pending(struct ioat2_dma_chan *ioat)
+void __ioat2_issue_pending(struct ioat2_dma_chan *ioat)
{
void * __iomem reg_base = ioat->base.reg_base;