Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 4e3d677b authored by Moshe Lazer's avatar Moshe Lazer Committed by Roland Dreier
Browse files

mlx5_core: Change optimal_reclaimed_pages for better performance 



Change optimal_reclaimed_pages() to increase the output size of each
reclaim pages command. This change reduces significantly the amount of
reclaim pages commands issued to FW when the driver is unloaded which
reduces the overall driver unload time.

Signed-off-by: default avatarMoshe Lazer <moshel@mellanox.com>
Signed-off-by: default avatarEli Cohen <eli@mellanox.com>
Signed-off-by: default avatarRoland Dreier <roland@purestorage.com>
parent 87b8de49

drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c

+7 −2
Original line number Diff line number Diff line
@@ -454,14 +454,19 @@ int mlx5_satisfy_startup_pages(struct mlx5_core_dev *dev, int boot) 
	return give_pages(dev, func_id, npages, 0);

}



enum {

	MLX5_BLKS_FOR_RECLAIM_PAGES = 12

};



static int optimal_reclaimed_pages(void)

{

	struct mlx5_cmd_prot_block *block;

	struct mlx5_cmd_layout *lay;

	int ret;



	ret = (sizeof(lay->in) + sizeof(block->data) -

	       sizeof(struct mlx5_manage_pages_outbox)) / 8;

	ret = (sizeof(lay->out) + MLX5_BLKS_FOR_RECLAIM_PAGES * sizeof(block->data) -

	       sizeof(struct mlx5_manage_pages_outbox)) /

	       FIELD_SIZEOF(struct mlx5_manage_pages_outbox, pas[0]);



	return ret;

}