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author | Maxim Mikityanskiy <maximmi@mellanox.com> | 2019-03-27 13:09:27 +0200 |
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committer | Saeed Mahameed <saeedm@mellanox.com> | 2019-04-23 12:09:21 -0700 |
commit | 9a22d5d8393fb71a6cc1820c8fb1ef20e26ab149 (patch) | |
tree | b2c9f49d67ea227f09038cd0de16b1ee9a324e26 /drivers/net/ethernet/mellanox/mlx5/core/en_main.c | |
parent | 74bbaebf3c69eb2f92ac8f703399598a5feed316 (diff) | |
download | linux-stable-9a22d5d8393fb71a6cc1820c8fb1ef20e26ab149.tar.gz linux-stable-9a22d5d8393fb71a6cc1820c8fb1ef20e26ab149.tar.bz2 linux-stable-9a22d5d8393fb71a6cc1820c8fb1ef20e26ab149.zip |
net/mlx5e: Move parameter calculation functions to en/params.c
This commit moves the parameter calculation functions to a separate file
for better modularity and code sharing with future features.
Signed-off-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/en_main.c')
-rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 99 |
1 files changed, 1 insertions, 98 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c index a3397d5bfa76..8cab86a558ab 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c @@ -55,6 +55,7 @@ #include "lib/eq.h" #include "en/monitor_stats.h" #include "en/reporter.h" +#include "en/params.h" struct mlx5e_rq_param { u32 rqc[MLX5_ST_SZ_DW(rqc)]; @@ -103,104 +104,6 @@ bool mlx5e_check_fragmented_striding_rq_cap(struct mlx5_core_dev *mdev) return true; } -static u32 mlx5e_rx_get_linear_frag_sz(struct mlx5e_params *params) -{ - u16 hw_mtu = MLX5E_SW2HW_MTU(params, params->sw_mtu); - u16 linear_rq_headroom = params->xdp_prog ? - XDP_PACKET_HEADROOM : MLX5_RX_HEADROOM; - u32 frag_sz; - - linear_rq_headroom += NET_IP_ALIGN; - - frag_sz = MLX5_SKB_FRAG_SZ(linear_rq_headroom + hw_mtu); - - if (params->xdp_prog && frag_sz < PAGE_SIZE) - frag_sz = PAGE_SIZE; - - return frag_sz; -} - -static u8 mlx5e_mpwqe_log_pkts_per_wqe(struct mlx5e_params *params) -{ - u32 linear_frag_sz = mlx5e_rx_get_linear_frag_sz(params); - - return MLX5_MPWRQ_LOG_WQE_SZ - order_base_2(linear_frag_sz); -} - -static bool mlx5e_rx_is_linear_skb(struct mlx5_core_dev *mdev, - struct mlx5e_params *params) -{ - u32 frag_sz = mlx5e_rx_get_linear_frag_sz(params); - - return !params->lro_en && frag_sz <= PAGE_SIZE; -} - -#define MLX5_MAX_MPWQE_LOG_WQE_STRIDE_SZ ((BIT(__mlx5_bit_sz(wq, log_wqe_stride_size)) - 1) + \ - MLX5_MPWQE_LOG_STRIDE_SZ_BASE) -static bool mlx5e_rx_mpwqe_is_linear_skb(struct mlx5_core_dev *mdev, - struct mlx5e_params *params) -{ - u32 frag_sz = mlx5e_rx_get_linear_frag_sz(params); - s8 signed_log_num_strides_param; - u8 log_num_strides; - - if (!mlx5e_rx_is_linear_skb(mdev, params)) - return false; - - if (order_base_2(frag_sz) > MLX5_MAX_MPWQE_LOG_WQE_STRIDE_SZ) - return false; - - if (MLX5_CAP_GEN(mdev, ext_stride_num_range)) - return true; - - log_num_strides = MLX5_MPWRQ_LOG_WQE_SZ - order_base_2(frag_sz); - signed_log_num_strides_param = - (s8)log_num_strides - MLX5_MPWQE_LOG_NUM_STRIDES_BASE; - - return signed_log_num_strides_param >= 0; -} - -static u8 mlx5e_mpwqe_get_log_rq_size(struct mlx5e_params *params) -{ - if (params->log_rq_mtu_frames < - mlx5e_mpwqe_log_pkts_per_wqe(params) + MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE_MPW) - return MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE_MPW; - - return params->log_rq_mtu_frames - mlx5e_mpwqe_log_pkts_per_wqe(params); -} - -static u8 mlx5e_mpwqe_get_log_stride_size(struct mlx5_core_dev *mdev, - struct mlx5e_params *params) -{ - if (mlx5e_rx_mpwqe_is_linear_skb(mdev, params)) - return order_base_2(mlx5e_rx_get_linear_frag_sz(params)); - - return MLX5_MPWRQ_DEF_LOG_STRIDE_SZ(mdev); -} - -static u8 mlx5e_mpwqe_get_log_num_strides(struct mlx5_core_dev *mdev, - struct mlx5e_params *params) -{ - return MLX5_MPWRQ_LOG_WQE_SZ - - mlx5e_mpwqe_get_log_stride_size(mdev, params); -} - -static u16 mlx5e_get_rq_headroom(struct mlx5_core_dev *mdev, - struct mlx5e_params *params) -{ - u16 linear_rq_headroom = params->xdp_prog ? - XDP_PACKET_HEADROOM : MLX5_RX_HEADROOM; - bool is_linear_skb; - - linear_rq_headroom += NET_IP_ALIGN; - - is_linear_skb = (params->rq_wq_type == MLX5_WQ_TYPE_CYCLIC) ? - mlx5e_rx_is_linear_skb(mdev, params) : - mlx5e_rx_mpwqe_is_linear_skb(mdev, params); - - return is_linear_skb ? linear_rq_headroom : 0; -} - void mlx5e_init_rq_type_params(struct mlx5_core_dev *mdev, struct mlx5e_params *params) { |