[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:0.085 / U:0.356 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site