SKB_FRAG_DMA_MAP(9) Linux Networking SKB_FRAG_DMA_MAP(9)NAMEskb_frag_dma_map - maps a paged fragment via the DMA API
SYNOPSIS
dma_addr_t skb_frag_dma_map(struct device * dev,
const skb_frag_t * frag, size_t offset,
size_t size, enum dma_data_direction dir);
ARGUMENTS
dev
the device to map the fragment to
frag
the paged fragment to map
offset
the offset within the fragment (starting at the fragment´s own
offset)
size
the number of bytes to map
dir
the direction of the mapping (PCI_DMA_*)
DESCRIPTION
Maps the page associated with frag to device.
COPYRIGHTKernel Hackers Manual 2.6. November 2013 SKB_FRAG_DMA_MAP(9)