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

york sun york.sun at nxp.com
Mon Jan 25 18:20:14 CET 2016


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?

York



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