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From: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
To: Sascha Hauer <s.hauer@pengutronix.de>
Cc: barebox@lists.infradead.org
Subject: Re: [PATCH 4/5] macb: implement alloc_packet & free_packet
Date: Mon, 5 Mar 2012 18:55:15 +0100	[thread overview]
Message-ID: <20120305175515.GI12248@game.jcrosoft.org> (raw)
In-Reply-To: <20120304120841.GR3852@pengutronix.de>

On 13:08 Sun 04 Mar     , Sascha Hauer wrote:
> On Fri, Mar 02, 2012 at 07:20:09PM +0100, Jean-Christophe PLAGNIOL-VILLARD wrote:
> > We need to have a non cached buffer.
> > Need when MMU enabled.
> > 
> > Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
> > ---
> >  drivers/net/macb.c |   19 ++++++++++++++++---
> >  1 files changed, 16 insertions(+), 3 deletions(-)
> > 
> > diff --git a/drivers/net/macb.c b/drivers/net/macb.c
> > index d79da72..9b54afa 100644
> > --- a/drivers/net/macb.c
> > +++ b/drivers/net/macb.c
> > @@ -50,6 +50,7 @@
> >  #include <mach/board.h>
> >  #include <linux/clk.h>
> >  #include <linux/err.h>
> > +#include <asm/mmu.h>
> >  
> >  #include "macb.h"
> >  
> > @@ -391,6 +392,16 @@ static int macb_set_ethaddr(struct eth_device *edev, unsigned char *adr)
> >  	return 0;
> >  }
> >  
> > +static void *macb_alloc_packet(struct eth_device* edev)
> > +{
> > +	return dma_alloc_coherent(PKTSIZE);
> > +}
> > +
> > +static void macb_free_packet(struct eth_device* edev, void *packet)
> > +{
> > +	dma_free_coherent(packet, PKTSIZE);
> > +}
> 
> Why don't you use dma_flush_range/dma_clean_range like we do in other
> drivers?
yeah I did it last week-end but too much late and put the flush at thw wrong
place

now work send an update.

can you apply them on master as they fix the macb when MMU is enable on AT91

Best Regards,
J.

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  reply	other threads:[~2012-03-05 18:15 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-03-02 18:20 [PATCH 1/5] net: use net_alloc_packet to allocate packet Jean-Christophe PLAGNIOL-VILLARD
2012-03-02 18:20 ` [PATCH 2/5] net: introduce net_free_packet to free the packet Jean-Christophe PLAGNIOL-VILLARD
2012-03-02 18:20 ` [PATCH 3/5] net: allow the drivers to specify the tx buffer allocator Jean-Christophe PLAGNIOL-VILLARD
2012-03-02 18:20 ` [PATCH 4/5] macb: implement alloc_packet & free_packet Jean-Christophe PLAGNIOL-VILLARD
2012-03-04 12:08   ` Sascha Hauer
2012-03-05 17:55     ` Jean-Christophe PLAGNIOL-VILLARD [this message]
2012-03-02 18:20 ` [PATCH 5/5] macb: add timeout on send Jean-Christophe PLAGNIOL-VILLARD
2012-03-06  8:29   ` Sascha Hauer
2012-03-07  9:21     ` Jean-Christophe PLAGNIOL-VILLARD

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