kybaaz/linux-xiaomi-chiron
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

net/mlx5: Add pages debugfs

Browse source 
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: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
This commit is contained in:
Moshe Shemesh 2022-01-27 07:03:33 +02:00 • committed by Saeed Mahameed
parent 66771a1c72
commit 4e05cbf05c
3 changed files with 25 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

17
drivers/net/ethernet/mellanox/mlx5/core/debugfs.c
View file

@ -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)
{

2
drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c
View file

@ -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);
}

9
include/linux/mlx5/driver.h
View file

@ -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);