[U-Boot] [PATCH 5/7] driver: net: ldpaa: Increase num of buffers for a pool

[Prabhakar Kushwaha]

> -----Original Message-----
> From: york sun [mailto:york.sun at nxp.com]
> Sent: Monday, January 25, 2016 10:50 PM
> To: Prabhakar Kushwaha <prabhakar at freescale.com>; u-boot at lists.denx.de
> Cc: Yusong Sun <yorksun at freescale.com>
> Subject: Re: [PATCH 5/7] driver: net: ldpaa: Increase num of buffers for a
> pool
> 
> On 12/24/2015 02:03 AM, Prabhakar Kushwaha wrote:
> > Management Complex FW 9.0 set the hardware depletion to be 20 buffers
> > in order to support multiple pools in DPNI. This requires driver to
> > fill the pool with at least 21 to be able to receive frames.
> >
> > So, Increase number of buffers for a pool.
> >
> > Signed-off-by: Prabhakar Kushwaha <prabhakar at freescale.com>
> > ---
> >  drivers/net/ldpaa_eth/ldpaa_eth.h | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/net/ldpaa_eth/ldpaa_eth.h
> > b/drivers/net/ldpaa_eth/ldpaa_eth.h
> > index af41b27..3b16150 100644
> > --- a/drivers/net/ldpaa_eth/ldpaa_eth.h
> > +++ b/drivers/net/ldpaa_eth/ldpaa_eth.h
> > @@ -24,7 +24,7 @@ enum ldpaa_eth_type {  };
> >
> >  /* Arbitrary values for now, but we'll need to tune */
> > -#define LDPAA_ETH_NUM_BUFS		(2 * 7)
> > +#define LDPAA_ETH_NUM_BUFS		(7 * 7)
> 
> You said at least 21, but actually use 49. Is there a connection?
> 
Total Buffer must be >= 21.  

Regards,
Prabhakar