From: Balasubramanian Manoharan <bala.manoha...@linaro.org> Adds pool minimum and maximum headroom in pool capability
Signed-off-by: Balasubramanian Manoharan <bala.manoha...@linaro.org> --- /** Email created from pull request 152 (bala-manoharan:pool_headroom) ** https://github.com/Linaro/odp/pull/152 ** Patch: https://github.com/Linaro/odp/pull/152.patch ** Base sha: 4eae04e80a634c17ac276bb06bce468cbe28cde0 ** Merge commit sha: 998193a656d35d26c49f1c5b6254d75f5eab0974 **/ include/odp/api/spec/pool.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/include/odp/api/spec/pool.h b/include/odp/api/spec/pool.h index 6fc5b6b4..164ae25e 100644 --- a/include/odp/api/spec/pool.h +++ b/include/odp/api/spec/pool.h @@ -97,6 +97,13 @@ typedef struct odp_pool_capability_t { * packet input and user allocated packets.*/ uint32_t min_headroom; + /** Maximum packet level headroom length in bytes + * + * The maximum value of packet pool 'min_headroom' parameter + * that can be configured. This value applies to both ODP + * packet input and user allocated packets.*/ + uint32_t max_headroom; + /** Minimum packet level tailroom length in bytes * * The minimum number of tailroom bytes that newly created @@ -214,6 +221,17 @@ 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; + + /** Minimum Headroom size in bytes. Minimum number of + bytes of space preceding packet data to reserve for + use as headroom. Each newly allocated packet from + the pool must have at least this much headroom. + Must not exceed the implementation defined + 'max_headroom' in odp_pool_capability(). + @note If application does not require headroom it + can configure 'min_headroom' as zero and + implementation may or may not allocate headroom. */ + uint32_t min_headroom; } pkt; /** Parameters for timeout pools */
