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Commit 29c2849e authored by Tariq Toukan's avatar Tariq Toukan Committed by Saeed Mahameed
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net/mlx5e: Slightly increase RX page-cache size 



In XDP_TX flow, we now get back quicker to each page in page-cache,
and on some occasions refcount does not get back to 1 on time, causing
some costly page allocations.
Slightly increase the size of RX page-cache to significantly decrease
the chances for this to happen.

Signed-off-by: default avatarTariq Toukan <tariqt@mellanox.com>
Signed-off-by: default avatarSaeed Mahameed <saeedm@mellanox.com>
parent 70871f1e

drivers/net/ethernet/mellanox/mlx5/core/en.h

+1 −1
Original line number Diff line number Diff line
@@ -501,7 +501,7 @@ struct mlx5e_rx_am { /* Adaptive Moderation */ 
 */

#define MLX5E_CACHE_UNIT	(MLX5_MPWRQ_PAGES_PER_WQE > NAPI_POLL_WEIGHT ? \

				 MLX5_MPWRQ_PAGES_PER_WQE : NAPI_POLL_WEIGHT)

#define MLX5E_CACHE_SIZE	(2 * roundup_pow_of_two(MLX5E_CACHE_UNIT))

#define MLX5E_CACHE_SIZE	(4 * roundup_pow_of_two(MLX5E_CACHE_UNIT))

struct mlx5e_page_cache {

	u32 head;

	u32 tail;