SKB_FRAG_DMA_MAP(9)                      Linux Networking                     SKB_FRAG_DMA_MAP(9)



NAME
       skb_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.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                       SKB_FRAG_DMA_MAP(9)