diff options
| author | Moshe Shemesh <moshe@nvidia.com> | 2022-01-27 08:51:14 +0300 |
|---|---|---|
| committer | Saeed Mahameed <saeedm@nvidia.com> | 2022-03-10 00:33:02 +0300 |
| commit | 32071187e9fb18da62f5be569bd2ea0d7a981ee8 (patch) | |
| tree | 0d99bad7718bcaaf05467947882a0b852d667164 | |
| parent | 4e05cbf05c66ca6931ee4f2a5aff0d84f1e65f40 (diff) | |
| download | linux-32071187e9fb18da62f5be569bd2ea0d7a981ee8.tar.xz | |
net/mlx5: Add debugfs counters for page commands failures
Add the following new debugfs counters for debug and verbosity:
fw_pages_alloc_failed - number of pages FW requested but driver failed
to allocate.
give_pages_dropped - number of pages given to FW, but command give pages
failed by FW.
reclaim_pages_discard - number of pages which were about to reclaim back
and FW failed the command.
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/debugfs.c | 4 | ||||
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c | 14 | ||||
| -rw-r--r-- | include/linux/mlx5/driver.h | 3 |
3 files changed, 18 insertions, 3 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/debugfs.c b/drivers/net/ethernet/mellanox/mlx5/core/debugfs.c index 8673ba2df910..d69bac93a83b 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/debugfs.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/debugfs.c @@ -222,6 +222,10 @@ void mlx5_pages_debugfs_init(struct mlx5_core_dev *dev) 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); + debugfs_create_u32("fw_pages_alloc_failed", 0400, pages, &dev->priv.fw_pages_alloc_failed); + debugfs_create_u32("fw_pages_give_dropped", 0400, pages, &dev->priv.give_pages_dropped); + debugfs_create_u32("fw_pages_reclaim_discard", 0400, pages, + &dev->priv.reclaim_pages_discard); } void mlx5_pages_debugfs_cleanup(struct mlx5_core_dev *dev) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c b/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c index 8855fe71d480..e0543b860144 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c @@ -352,8 +352,10 @@ retry: if (err) { if (err == -ENOMEM) err = alloc_system_page(dev, function); - if (err) + if (err) { + dev->priv.fw_pages_alloc_failed += (npages - i); goto out_4k; + } goto retry; } @@ -372,14 +374,14 @@ retry: /* if triggered by FW and failed by FW ignore */ if (event) { err = 0; - goto out_4k; + goto out_dropped; } } if (err) { err = mlx5_cmd_check(dev, err, in, out); mlx5_core_warn(dev, "func_id 0x%x, npages %d, err %d\n", func_id, npages, err); - goto out_4k; + goto out_dropped; } dev->priv.fw_pages += npages; @@ -394,6 +396,8 @@ retry: kvfree(in); return 0; +out_dropped: + dev->priv.give_pages_dropped += npages; out_4k: for (i--; i >= 0; i--) free_4k(dev, MLX5_GET64(manage_pages_in, in, pas[i]), function); @@ -516,6 +520,10 @@ static int reclaim_pages(struct mlx5_core_dev *dev, u16 func_id, int npages, mlx5_core_dbg(dev, "func 0x%x, npages %d, outlen %d\n", func_id, npages, outlen); err = reclaim_pages_cmd(dev, in, sizeof(in), out, outlen); + if (err) { + npages = MLX5_GET(manage_pages_in, in, input_num_entries); + dev->priv.reclaim_pages_discard += npages; + } /* if triggered by FW event and failed by FW then ignore */ if (event && err == -EREMOTEIO) err = 0; diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h index c5f93b5910ed..00a914b0716e 100644 --- a/include/linux/mlx5/driver.h +++ b/include/linux/mlx5/driver.h @@ -575,6 +575,9 @@ struct mlx5_priv { struct list_head free_list; u32 vfs_pages; u32 host_pf_pages; + u32 fw_pages_alloc_failed; + u32 give_pages_dropped; + u32 reclaim_pages_discard; struct mlx5_core_health health; struct list_head traps; |