From 8ff57c18e9f6b03722070a372cdcc850b13bcbc8 Mon Sep 17 00:00:00 2001 From: Tariq Toukan Date: Mon, 19 Nov 2018 15:07:07 +0200 Subject: [PATCH] net/mlx5e: Improve ethtool private-flags code structure Refactor the code of private-flags setter. Replace consecutive calls to mlx5e_handle_pflag with a loop that uses a preset set of parameters. Signed-off-by: Tariq Toukan Signed-off-by: Saeed Mahameed --- drivers/net/ethernet/mellanox/mlx5/core/en.h | 18 +++-- .../ethernet/mellanox/mlx5/core/en_ethtool.c | 76 ++++++++----------- 2 files changed, 41 insertions(+), 53 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h index c6686256a92a..8760d10ad5a1 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h @@ -49,6 +49,7 @@ #include #include #include +#include #include "wq.h" #include "mlx5_core.h" #include "en_stats.h" @@ -211,22 +212,23 @@ struct mlx5e_umr_wqe { extern const char mlx5e_self_tests[][ETH_GSTRING_LEN]; enum mlx5e_priv_flag { - MLX5E_PFLAG_RX_CQE_BASED_MODER = (1 << 0), - MLX5E_PFLAG_TX_CQE_BASED_MODER = (1 << 1), - MLX5E_PFLAG_RX_CQE_COMPRESS = (1 << 2), - MLX5E_PFLAG_RX_STRIDING_RQ = (1 << 3), - MLX5E_PFLAG_RX_NO_CSUM_COMPLETE = (1 << 4), + MLX5E_PFLAG_RX_CQE_BASED_MODER, + MLX5E_PFLAG_TX_CQE_BASED_MODER, + MLX5E_PFLAG_RX_CQE_COMPRESS, + MLX5E_PFLAG_RX_STRIDING_RQ, + MLX5E_PFLAG_RX_NO_CSUM_COMPLETE, + MLX5E_NUM_PFLAGS, /* Keep last */ }; #define MLX5E_SET_PFLAG(params, pflag, enable) \ do { \ if (enable) \ - (params)->pflags |= (pflag); \ + (params)->pflags |= BIT(pflag); \ else \ - (params)->pflags &= ~(pflag); \ + (params)->pflags &= ~(BIT(pflag)); \ } while (0) -#define MLX5E_GET_PFLAG(params, pflag) (!!((params)->pflags & (pflag))) +#define MLX5E_GET_PFLAG(params, pflag) (!!((params)->pflags & (BIT(pflag)))) #ifdef CONFIG_MLX5_CORE_EN_DCB #define MLX5E_MAX_BW_ALLOC 100 /* Max percentage of BW allocation */ diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c index e868d42c83cb..da4bb62ac528 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c @@ -135,14 +135,15 @@ void mlx5e_build_ptys2ethtool_map(void) ETHTOOL_LINK_MODE_50000baseKR2_Full_BIT); } -static const char mlx5e_priv_flags[][ETH_GSTRING_LEN] = { - "rx_cqe_moder", - "tx_cqe_moder", - "rx_cqe_compress", - "rx_striding_rq", - "rx_no_csum_complete", +typedef int (*mlx5e_pflag_handler)(struct net_device *netdev, bool enable); + +struct pflag_desc { + char name[ETH_GSTRING_LEN]; + mlx5e_pflag_handler handler; }; +static const struct pflag_desc mlx5e_priv_flags[MLX5E_NUM_PFLAGS]; + int mlx5e_ethtool_get_sset_count(struct mlx5e_priv *priv, int sset) { int i, num_stats = 0; @@ -153,7 +154,7 @@ int mlx5e_ethtool_get_sset_count(struct mlx5e_priv *priv, int sset) num_stats += mlx5e_stats_grps[i].get_num_stats(priv); return num_stats; case ETH_SS_PRIV_FLAGS: - return ARRAY_SIZE(mlx5e_priv_flags); + return MLX5E_NUM_PFLAGS; case ETH_SS_TEST: return mlx5e_self_test_num(priv); /* fallthrough */ @@ -183,8 +184,9 @@ void mlx5e_ethtool_get_strings(struct mlx5e_priv *priv, u32 stringset, u8 *data) switch (stringset) { case ETH_SS_PRIV_FLAGS: - for (i = 0; i < ARRAY_SIZE(mlx5e_priv_flags); i++) - strcpy(data + i * ETH_GSTRING_LEN, mlx5e_priv_flags[i]); + for (i = 0; i < MLX5E_NUM_PFLAGS; i++) + strcpy(data + i * ETH_GSTRING_LEN, + mlx5e_priv_flags[i].name); break; case ETH_SS_TEST: @@ -1485,8 +1487,6 @@ static int mlx5e_get_module_eeprom(struct net_device *netdev, return 0; } -typedef int (*mlx5e_pflag_handler)(struct net_device *netdev, bool enable); - static int set_pflag_cqe_based_moder(struct net_device *netdev, bool enable, bool is_rx_cq) { @@ -1649,23 +1649,30 @@ static int set_pflag_rx_no_csum_complete(struct net_device *netdev, bool enable) return 0; } +static const struct pflag_desc mlx5e_priv_flags[MLX5E_NUM_PFLAGS] = { + { "rx_cqe_moder", set_pflag_rx_cqe_based_moder }, + { "tx_cqe_moder", set_pflag_tx_cqe_based_moder }, + { "rx_cqe_compress", set_pflag_rx_cqe_compress }, + { "rx_striding_rq", set_pflag_rx_striding_rq }, + { "rx_no_csum_complete", set_pflag_rx_no_csum_complete }, +}; + static int mlx5e_handle_pflag(struct net_device *netdev, u32 wanted_flags, - enum mlx5e_priv_flag flag, - mlx5e_pflag_handler pflag_handler) + enum mlx5e_priv_flag flag) { struct mlx5e_priv *priv = netdev_priv(netdev); - bool enable = !!(wanted_flags & flag); + bool enable = !!(wanted_flags & BIT(flag)); u32 changes = wanted_flags ^ priv->channels.params.pflags; int err; - if (!(changes & flag)) + if (!(changes & BIT(flag))) return 0; - err = pflag_handler(netdev, enable); + err = mlx5e_priv_flags[flag].handler(netdev, enable); if (err) { - netdev_err(netdev, "%s private flag 0x%x failed err %d\n", - enable ? "Enable" : "Disable", flag, err); + netdev_err(netdev, "%s private flag '%s' failed err %d\n", + enable ? "Enable" : "Disable", mlx5e_priv_flags[flag].name, err); return err; } @@ -1676,38 +1683,17 @@ static int mlx5e_handle_pflag(struct net_device *netdev, static int mlx5e_set_priv_flags(struct net_device *netdev, u32 pflags) { struct mlx5e_priv *priv = netdev_priv(netdev); + enum mlx5e_priv_flag pflag; int err; mutex_lock(&priv->state_lock); - err = mlx5e_handle_pflag(netdev, pflags, - MLX5E_PFLAG_RX_CQE_BASED_MODER, - set_pflag_rx_cqe_based_moder); - if (err) - goto out; - - err = mlx5e_handle_pflag(netdev, pflags, - MLX5E_PFLAG_TX_CQE_BASED_MODER, - set_pflag_tx_cqe_based_moder); - if (err) - goto out; - - err = mlx5e_handle_pflag(netdev, pflags, - MLX5E_PFLAG_RX_CQE_COMPRESS, - set_pflag_rx_cqe_compress); - if (err) - goto out; - err = mlx5e_handle_pflag(netdev, pflags, - MLX5E_PFLAG_RX_STRIDING_RQ, - set_pflag_rx_striding_rq); - if (err) - goto out; - - err = mlx5e_handle_pflag(netdev, pflags, - MLX5E_PFLAG_RX_NO_CSUM_COMPLETE, - set_pflag_rx_no_csum_complete); + for (pflag = 0; pflag < MLX5E_NUM_PFLAGS; pflag++) { + err = mlx5e_handle_pflag(netdev, pflags, pflag); + if (err) + break; + } -out: mutex_unlock(&priv->state_lock); /* Need to fix some features.. */ -- 2.30.2