From: Maher Sanalla Date: Sun, 22 Jan 2023 21:24:56 +0000 (+0200) Subject: net/mlx5: Expose SF firmware pages counter X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=ee128b700fd0c6689785196577d00ec968857e8e;p=users%2Fjedix%2Flinux-maple.git net/mlx5: Expose SF firmware pages counter [ Upstream commit 9965bbebae59b3563a4d95e4aed121e8965dfdc2 ] Currently, each core device has VF pages counter which stores number of fw pages used by its VFs and SFs. The current design led to a hang when performing firmware reset on DPU, where the DPU PFs stalled in sriov unload flow due to waiting on release of SFs pages instead of waiting on only VFs pages. Thus, Add a separate counter for SF firmware pages, which will prevent the stall scenario described above. Fixes: 1958fc2f0712 ("net/mlx5: SF, Add auxiliary device driver") Signed-off-by: Maher Sanalla Reviewed-by: Shay Drory Signed-off-by: Saeed Mahameed Signed-off-by: Sasha Levin --- diff --git a/drivers/net/ethernet/mellanox/mlx5/core/debugfs.c b/drivers/net/ethernet/mellanox/mlx5/core/debugfs.c index c3e7c24a0971..bb95b40d25eb 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/debugfs.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/debugfs.c @@ -246,6 +246,7 @@ 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.page_counters[MLX5_VF]); + debugfs_create_u32("fw_pages_sfs", 0400, pages, &dev->priv.page_counters[MLX5_SF]); debugfs_create_u32("fw_pages_host_pf", 0400, pages, &dev->priv.page_counters[MLX5_HOST_PF]); 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); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c b/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c index 9f99292ab5ce..0eb50be175cc 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c @@ -79,7 +79,7 @@ static u16 func_id_to_type(struct mlx5_core_dev *dev, u16 func_id, bool ec_funct if (!func_id) return mlx5_core_is_ecpf(dev) && !ec_function ? MLX5_HOST_PF : MLX5_PF; - return MLX5_VF; + return func_id <= mlx5_core_max_vfs(dev) ? MLX5_VF : MLX5_SF; } static struct rb_root *page_root_per_function(struct mlx5_core_dev *dev, u32 function) diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h index 9b300aa4eb95..fff61e6d6d4d 100644 --- a/include/linux/mlx5/driver.h +++ b/include/linux/mlx5/driver.h @@ -576,6 +576,7 @@ struct mlx5_debugfs_entries { enum mlx5_func_type { MLX5_PF, MLX5_VF, + MLX5_SF, MLX5_HOST_PF, MLX5_FUNC_TYPE_NUM, };