[BACK]Return to scatterlist.h CVS log [TXT][DIR] Up to [Development] / linux-2.6-xfs / include / asm-x86_64
File: [Development] / linux-2.6-xfs / include / asm-x86_64 / Attic / scatterlist.h (download)

Revision 1.2, Thu Jan 29 19:23:16 2004 UTC (13 years, 9 months ago) by nathans
Branch: MAIN
Changes since 1.1: +2 -1 lines 

Merge up to 2.6.2-rc2

#ifndef _X8664_SCATTERLIST_H
#define _X8664_SCATTERLIST_H

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

#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)->dma_length)

#endif