Best Regards,
Stanislaw Kardach
On 06/05/2017 02:27 PM, Balasubramanian Manoharan wrote:
> Adds threshold limit of the pool to the pool parameters.
> This threshold limit is a percentage of total size of the pool.
>
> Signed-off-by: Balasubramanian Manoharan <bala.manoha...@linaro.org>
> ---
> include/odp/api/spec/pool.h | 32 ++++++++++++++++++++++++++++++++
> 1 file changed, 32 insertions(+)
>
> diff --git a/include/odp/api/spec/pool.h b/include/odp/api/spec/pool.h
> index 6fc5b6b..1c1ebe4 100644
> --- a/include/odp/api/spec/pool.h
> +++ b/include/odp/api/spec/pool.h
> @@ -20,6 +20,7 @@ extern "C" {
> #endif
>
> #include <odp/api/std_types.h>
> +#include <odp/api/support.h>
>
> /** @defgroup odp_pool ODP POOL
> * Operations on a pool.
> @@ -127,6 +128,9 @@ typedef struct odp_pool_capability_t {
> * The value of zero means that limited only by the available
> * memory size for the pool. */
> uint32_t max_uarea_size;
> +
> + /** Pool Threshold limit support */
> + odp_support_t pool_threshold_limit;
> } pkt;
>
> /** Timeout pool capabilities */
> @@ -214,6 +218,17 @@ typedef struct odp_pool_param_t {
> defined by pool capability pkt.max_uarea_size.
> Specify as 0 if no user area is needed. */
> uint32_t uarea_size;
> +
> + /** Pool threshold limit in percentage
> + *
> + * This value denotes the threshold limit of the pool in
> + * percentage of the total size of the pool and is used
> + * to configure the Random Early Discard (RED).
> + * When the number of packets in the pool is greater
> + * than this value RED is initiated in the pool and
> + * further incoming packets to the pool are dropped in
> + * a random sequence. */
> + uint8_t threshold_limit;
Is threshold limit "a percentage of total size of the pool" (hence I
guess 0-100) or rather an absolute value that triggers RED?
> } pkt;
>
> /** Parameters for timeout pools */
> @@ -329,6 +344,23 @@ uint64_t odp_pool_to_u64(odp_pool_t hdl);
> void odp_pool_param_init(odp_pool_param_t *param);
>
> /**
> + * Set threshold limit of the pool
> + *
> + * Set the threshold limit of the pool as a percentage of the total
> + * size of the pool. This value is used to configure Random Early
> Discard(RED)
> + * parameters of the pool and any incoming packets to the pool after reaching
> + * this threshold is dropped in a random sequence.
> + *
> + * @param pool Pool handle
> + * @param threshold_limit Threshold limit of the pool.
> + *
> + * @retval 0 on success
> + * @retval -1 on failure
> + */
> +
> +int odp_pool_threshold_limit(odp_pool_t pool, uint8_t threshold_limit);
> +
> +/**
> * @}
> */
>
>
