Commit 4e05cbf0 authored by Moshe Shemesh's avatar Moshe Shemesh Committed by Saeed Mahameed
Browse files

net/mlx5: Add pages debugfs 



Add pages debugfs to expose the following counters for debuggability:
fw_pages_total - How many pages were given to FW and not returned yet.
vfs_pages - For SRIOV, how many pages were given to FW for virtual
functions usage.
host_pf_pages - For ECPF, how many pages were given to FW for external
hosts physical functions usage.

Signed-off-by: default avatarMoshe Shemesh <moshe@nvidia.com>
Reviewed-by: default avatarLeon Romanovsky <leonro@nvidia.com>
Signed-off-by: default avatarSaeed Mahameed <saeedm@nvidia.com>
parent 66771a1c

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

+17 −0
Original line number Diff line number Diff line
@@ -212,6 +212,23 @@ void mlx5_cq_debugfs_cleanup(struct mlx5_core_dev *dev) 
	debugfs_remove_recursive(dev->priv.dbg.cq_debugfs);

}



void mlx5_pages_debugfs_init(struct mlx5_core_dev *dev)

{

	struct dentry *pages;



	dev->priv.dbg.pages_debugfs = debugfs_create_dir("pages", dev->priv.dbg.dbg_root);

	pages = dev->priv.dbg.pages_debugfs;



	debugfs_create_u32("fw_pages_total", 0400, pages, &dev->priv.fw_pages);

	debugfs_create_u32("fw_pages_vfs", 0400, pages, &dev->priv.vfs_pages);

	debugfs_create_u32("fw_pages_host_pf", 0400, pages, &dev->priv.host_pf_pages);

}



void mlx5_pages_debugfs_cleanup(struct mlx5_core_dev *dev)

{

	debugfs_remove_recursive(dev->priv.dbg.pages_debugfs);

}



static u64 qp_read_field(struct mlx5_core_dev *dev, struct mlx5_core_qp *qp,

			 int index, int *is_str)

{

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

+2 −0
Original line number Diff line number Diff line
@@ -714,12 +714,14 @@ int mlx5_pagealloc_init(struct mlx5_core_dev *dev) 
		return -ENOMEM;



	xa_init(&dev->priv.page_root_xa);

	mlx5_pages_debugfs_init(dev);



	return 0;

}



void mlx5_pagealloc_cleanup(struct mlx5_core_dev *dev)

{

	mlx5_pages_debugfs_cleanup(dev);

	xa_destroy(&dev->priv.page_root_xa);

	destroy_workqueue(dev->priv.pg_wq);

}

include/linux/mlx5/driver.h

+6 −3
Original line number Diff line number Diff line
@@ -557,6 +557,7 @@ struct mlx5_debugfs_entries { 
	struct dentry *eq_debugfs;

	struct dentry *cq_debugfs;

	struct dentry *cmdif_debugfs;

	struct dentry *pages_debugfs;

};



struct mlx5_ft_pool;
@@ -569,11 +570,11 @@ struct mlx5_priv { 
	struct mlx5_nb          pg_nb;

	struct workqueue_struct *pg_wq;

	struct xarray           page_root_xa;

	int			fw_pages;

	u32			fw_pages;

	atomic_t		reg_pages;

	struct list_head	free_list;

	int			vfs_pages;

	int			host_pf_pages;

	u32			vfs_pages;

	u32			host_pf_pages;



	struct mlx5_core_health health;

	struct list_head	traps;
@@ -1026,6 +1027,8 @@ int mlx5_pagealloc_init(struct mlx5_core_dev *dev); 
void mlx5_pagealloc_cleanup(struct mlx5_core_dev *dev);

void mlx5_pagealloc_start(struct mlx5_core_dev *dev);

void mlx5_pagealloc_stop(struct mlx5_core_dev *dev);

void mlx5_pages_debugfs_init(struct mlx5_core_dev *dev);

void mlx5_pages_debugfs_cleanup(struct mlx5_core_dev *dev);

void mlx5_core_req_pages_handler(struct mlx5_core_dev *dev, u16 func_id,

				 s32 npages, bool ec_function);

int mlx5_satisfy_startup_pages(struct mlx5_core_dev *dev, int boot);