From: Daniel Jurgens Date: Thu, 27 Jun 2024 18:02:35 +0000 (+0300) Subject: net/mlx5: Use max_num_eqs_24b capability if set X-Git-Tag: v6.10-rc7~13^2~24^2~5 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=29c6a562bf53b1dc38f87611c7b77e5feffed601;p=thirdparty%2Fkernel%2Flinux.git net/mlx5: Use max_num_eqs_24b capability if set A new capability with more bits is added. If it's set use that value as the maximum number of EQs available. This cap is also writable by the vhca_resource_manager to allow limiting the number of EQs available to SFs and VFs. Fixes: 93197c7c509d ("mlx5/core: Support max_io_eqs for a function") Signed-off-by: Daniel Jurgens Reviewed-by: Parav Pandit Reviewed-by: William Tu Signed-off-by: Tariq Toukan Signed-off-by: David S. Miller --- diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eq.c b/drivers/net/ethernet/mellanox/mlx5/core/eq.c index 5693986ae6562..ac1565c0c8afc 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eq.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/eq.c @@ -1197,9 +1197,7 @@ static int get_num_eqs(struct mlx5_core_dev *dev) if (!mlx5_core_is_eth_enabled(dev) && mlx5_eth_supported(dev)) return 1; - max_dev_eqs = MLX5_CAP_GEN(dev, max_num_eqs) ? - MLX5_CAP_GEN(dev, max_num_eqs) : - 1 << MLX5_CAP_GEN(dev, log_max_eq); + max_dev_eqs = mlx5_max_eq_cap_get(dev); num_eqs = min_t(int, mlx5_irq_table_get_num_comp(eq_table->irq_table), max_dev_eqs - MLX5_MAX_ASYNC_EQS); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h b/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h index c38342b9f3208..a7fd18888b6e1 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h @@ -383,4 +383,14 @@ static inline int mlx5_vport_to_func_id(const struct mlx5_core_dev *dev, u16 vpo : vport; } +static inline int mlx5_max_eq_cap_get(const struct mlx5_core_dev *dev) +{ + if (MLX5_CAP_GEN_2(dev, max_num_eqs_24b)) + return MLX5_CAP_GEN_2(dev, max_num_eqs_24b); + + if (MLX5_CAP_GEN(dev, max_num_eqs)) + return MLX5_CAP_GEN(dev, max_num_eqs); + + return 1 << MLX5_CAP_GEN(dev, log_max_eq); +} #endif /* __MLX5_CORE_H__ */ diff --git a/drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c b/drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c index fb8787e30d3fa..401d390696802 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c @@ -711,9 +711,7 @@ int mlx5_irq_table_get_num_comp(struct mlx5_irq_table *table) int mlx5_irq_table_create(struct mlx5_core_dev *dev) { - int num_eqs = MLX5_CAP_GEN(dev, max_num_eqs) ? - MLX5_CAP_GEN(dev, max_num_eqs) : - 1 << MLX5_CAP_GEN(dev, log_max_eq); + int num_eqs = mlx5_max_eq_cap_get(dev); int total_vec; int pcif_vec; int req_vec;