On Tue, Apr 21, 2015 at 06:51:26PM -0400, Andy Walls wrote:
> Sorry for the top post; mobile work email account.
>
> Luis,
>
> You do the changes to remove MTTR and point me to your dev repo and branch.
> Also point me to the new functions/primitives I'll need.
There is nothing new actually need
On Tue, Apr 21, 2015 at 3:08 PM, Luis R. Rodriguez wrote:
> On Tue, Apr 21, 2015 at 3:02 PM, Luis R. Rodriguez wrote:
>> Andy, can we live without MTRR support on this driver for future kernels?
>> This
>> would only leave ipath as the only offending driver.
>
> Sorry to be clear, can we live wi
On Tue, Apr 21, 2015 at 3:02 PM, Luis R. Rodriguez wrote:
> Andy, can we live without MTRR support on this driver for future kernels? This
> would only leave ipath as the only offending driver.
Sorry to be clear, can we live with removal of write-combining on this driver?
Luis
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On Wed, Apr 15, 2015 at 09:07:37PM -0400, Andy Walls wrote:
> On Thu, 2015-04-16 at 01:58 +0200, Luis R. Rodriguez wrote:
> > Hey Andy, thanks for your review, adding Hyong-Youb Kim for review of the
> > full range ioremap_wc() idea below.
> >
> > On Wed, Apr 15, 2015 at 06:38:51PM -0400, Andy W
On Thu, Apr 16, 2015 at 08:54:26PM +0200, Luis R. Rodriguez wrote:
> > Without WC, descriptors would end up as multiple 4B or 8B MWr packets
> > to the NIC, which has a pretty big performance impact on this
> > particular NIC.
>
> How big are the descriptors?
Some are 64B (a batch of eight 8B des
On Thu, Apr 16, 2015 at 01:18:37PM +0900, Hyong-Youb Kim wrote:
> On Thu, Apr 16, 2015 at 01:58:16AM +0200, Luis R. Rodriguez wrote:
> >
> > An alternative... is to just ioremap_wc() the entire region, including
> > MMIO registers for these old devices. I see one ethernet driver that does
> > this
On Thu, Apr 16, 2015 at 01:58:16AM +0200, Luis R. Rodriguez wrote:
>
> An alternative... is to just ioremap_wc() the entire region, including
> MMIO registers for these old devices. I see one ethernet driver that does
> this, myri10ge, and am curious how and why they ended up deciding this
> and i
On Thu, 2015-04-16 at 01:58 +0200, Luis R. Rodriguez wrote:
> Hey Andy, thanks for your review, adding Hyong-Youb Kim for review of the
> full range ioremap_wc() idea below.
>
> On Wed, Apr 15, 2015 at 06:38:51PM -0400, Andy Walls wrote:
> > Hi All,
> >
> > On Mon, 2015-04-13 at 19:49 +0200, Lu
Hey Andy, thanks for your review, adding Hyong-Youb Kim for review of the
full range ioremap_wc() idea below.
On Wed, Apr 15, 2015 at 06:38:51PM -0400, Andy Walls wrote:
> Hi All,
>
> On Mon, 2015-04-13 at 19:49 +0200, Luis R. Rodriguez wrote:
> > From the beginning it seems only framebuffer de
