[lkml]   [2004]   [Oct]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: [PATCH] use mmiowb in qla1280.c
    On Sunday, October 24, 2004 9:20 am, James Bottomley wrote:
    > On Thu, 2004-10-21 at 19:17, Jesse Barnes wrote:
    > > There are a few spots in qla1280.c that don't need a full PCI write flush
    > > to the device, but rather a simple write ordering guarantee. This patch
    > > changes some of the PIO reads that cause write flushes into mmiowb calls
    > > instead, which is a lighter weight way of ensuring ordering.
    > >
    > > Jes and James, can you ack this and/or push it in via the SCSI BK tree?
    > This doesn't seem to work:
    > CC [M] drivers/scsi/qla1280.o
    > drivers/scsi/qla1280.c: In function `qla1280_64bit_start_scsi':
    > drivers/scsi/qla1280.c:3404: warning: implicit declaration of function
    > `mmiowb'
    > *** Warning: "mmiowb" [drivers/scsi/qla1280.ko] undefined!

    Only works in Andrew's tree until he pushes mmiowb to Linus.

    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to
    More majordomo info at
    Please read the FAQ at

     \ /
      Last update: 2005-03-22 14:07    [W:0.019 / U:2.152 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site