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File: [Development] / linux-2.6-xfs / include / asm-x86_64 / Attic / scatterlist.h (download)

Revision 1.1, Tue Dec 30 23:58:53 2003 UTC (13 years, 10 months ago) by cattelan
Branch: MAIN 

Initial Import 2.6.0

#ifndef _X8664_SCATTERLIST_H
#define _X8664_SCATTERLIST_H

struct scatterlist {
    struct page		*page;
    unsigned int	offset;
    unsigned int	length;
    dma_addr_t		dma_address;
};

#define ISA_DMA_THRESHOLD (0x00ffffff)

/* These macros should be used after a pci_map_sg call has been done
 * to get bus addresses of each of the SG entries and their lengths.
 * You should only work with the number of sg entries pci_map_sg
 * returns.
 */
#define sg_dma_address(sg)     ((sg)->dma_address)
#define sg_dma_len(sg)         ((sg)->length)

#endif