lkml.org 
[lkml]   [2003]   [Nov]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: virt_to_page/pci_map_page vs. pci_map_single

    > I really don't see what's to be gained by doing this. map_page is for
    > mapping one page or a fragment of it. It's designed for small zero copy
    > stuff, like networking. To get it to map more than one page, really we
    > should pass in an array of struct pages.

    As an aside it would be nice if networking used the map_sg infrastructure
    for zero copy. Some architectures need to do things to make the DMA
    mapping visible to IO and at the moment we do it for each map_page.

    Anton
    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2005-03-22 13:58    [W:0.020 / U:30.004 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site