Commit 133ea373 authored by Yevgeny Kliteynik's avatar Yevgeny Kliteynik Committed by Saeed Mahameed
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net/mlx5: DR, Lower sync threshold for ICM hot memory 



Instead of hiding the math in the code, define a value that sets the
fraction of allowed hot memory of ICM pool.
Set the threshold for sync of ICM hot chunks to 1/4 of the pool
instead of 1/2 of the pool. Although we will have more syncs, each
sync will be shorter and will help with insertion rate stability.

Signed-off-by: default avatarYevgeny Kliteynik <kliteyn@nvidia.com>
Reviewed-by: default avatarAlex Vesker <valex@nvidia.com>
Signed-off-by: default avatarSaeed Mahameed <saeedm@nvidia.com>
parent fb628b71

drivers/net/ethernet/mellanox/mlx5/core/steering/dr_icm_pool.c

+4 −2
Original line number Diff line number Diff line
@@ -4,6 +4,7 @@ 
#include "dr_types.h"



#define DR_ICM_MODIFY_HDR_ALIGN_BASE 64

#define DR_ICM_POOL_HOT_MEMORY_FRACTION 4



struct mlx5dr_icm_pool {

	enum mlx5dr_icm_type icm_type;
@@ -337,10 +338,11 @@ static bool dr_icm_pool_is_sync_required(struct mlx5dr_icm_pool *pool) 
{

	int allow_hot_size;



	/* sync when hot memory reaches half of the pool size */

	/* sync when hot memory reaches a certain fraction of the pool size */

	allow_hot_size =

		mlx5dr_icm_pool_chunk_size_to_byte(pool->max_log_chunk_sz,

						   pool->icm_type) / 2;

						   pool->icm_type) /

		DR_ICM_POOL_HOT_MEMORY_FRACTION;



	return pool->hot_memory_size > allow_hot_size;

}