lkml.org 
[lkml]   [2009]   [Mar]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    SubjectRe: [PATCH] pci: don't enable too many HT MSI mapping
    Date
    On Donnerstag 05 März 2009 18:15:14 Matthew Wilcox wrote:
    > On Wed, Mar 04, 2009 at 08:15:37AM +0100, Prakash Punnoor wrote:
    > > 2.6.29-rc7 is released, but the last two patches here in the thread have
    > > not been picked up. Why?
    >
    > Oh, I meant to say ... we're at -rc7. What is the danger here of this
    > fixing your machine but breaking somebody else's?

    There is a danger that less host bridges get HT MSI enabled by the quirk -
    which might need it after all.

    > Is there something we
    > can minimally do that fixes your machine today and then put in a patch
    > for 30-rc1 that is likely to fix other machines?

    Something like this would be minimal and works for me:

    --- drivers/pci/quirks.c.old 2009-03-06 00:34:40.996532222 +0100
    +++ drivers/pci/quirks.c 2009-03-06 00:37:06.915532269 +0100
    @@ -2141,6 +2141,10 @@
    int pos;
    int found;

    + /* Enabling HT MSI mapping on this device breaks MCP51 */
    + if (dev->device == 0x270)
    + return;
    +
    /* check if there is HT MSI cap or enabled on this device */
    found = ht_check_msi_mapping(dev);

    --
    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: 2009-03-06 00:45    [W:0.026 / U:30.268 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site