netdev - RE: [PATCH 3/3] vmxnet3: fix typo setting confPA

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Date:	Fri, 22 Oct 2010 10:46:46 -0700
From:	Shreyas Bhatewara <sbhatewara@...are.com>
To:	Harvey Harrison <harvey.harrison@...il.com>
CC:	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"shemminger@...tta.com" <shemminger@...tta.com>
Subject: RE: [PATCH 3/3] vmxnet3: fix typo setting confPA

> -----Original Message-----
> From: Harvey Harrison [mailto:harvey.harrison@...il.com]
> Sent: Friday, October 22, 2010 10:40 AM
> To: Shreyas Bhatewara
> Cc: netdev@...r.kernel.org; shemminger@...tta.com
> Subject: Re: [PATCH 3/3] vmxnet3: fix typo setting confPA
> 
> On Fri, Oct 22, 2010 at 10:31 AM, Shreyas Bhatewara
> <sbhatewara@...are.com> wrote:
> > On Thu, 21 Oct 2010, Harvey Harrison wrote:
> >
> >> It's a le64, not a le32, typo in one place only.
> >>
> >
> > Sure it is. Thanks for the change.
> >
> > Signed-off-by: Shreyas Bhatewara <sbhatewara@...are.com>
> >
> >
> 
> One question I had when looking into this, why are you doing
> byteswapping in the VMXNET_{READ,WRITE}_BAR{0,1}
> macros?

Because values need to be written in LE orders in registers. For eg. when rx_ring.next2fill index is written to RXPROD reg, it should be converted from CPU order to LE.

->Shreyas


> 
> Harvey