From: Gal Pressman Date: Sun, 21 Jan 2018 08:52:17 +0000 (+0200) Subject: net/mlx5e: Remove unused max inline related code X-Git-Tag: v4.17-rc1~148^2~65^2~5 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=c4554fbccaa3306f65954ed0f1dab7abce7889f8;p=linux.git net/mlx5e: Remove unused max inline related code Commit 58d522912ac7 ("net/mlx5e: Support TX packet copy into WQE") introduced the max inline WQE as an ethtool tunable. One commit later, that functionality was made dependent on BlueFlame. Commit 6982ab609768 ("net/mlx5e: Xmit, no write combining") removed BlueFlame support, and with it the max inline WQE. This patch cleans up the leftovers from the removed feature. Signed-off-by: Gal Pressman Signed-off-by: Saeed Mahameed --- diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h index 13dd7a97ae04..6898f5e26006 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h @@ -240,7 +240,6 @@ struct mlx5e_params { struct net_dim_cq_moder tx_cq_moderation; bool lro_en; u32 lro_wqe_sz; - u16 tx_max_inline; u8 tx_min_inline_mode; u8 rss_hfunc; u8 toeplitz_hash_key[40]; @@ -366,7 +365,6 @@ struct mlx5e_txqsq { void __iomem *uar_map; struct netdev_queue *txq; u32 sqn; - u16 max_inline; u8 min_inline_mode; u16 edge; struct device *pdev; @@ -1017,7 +1015,6 @@ int mlx5e_rx_flow_steer(struct net_device *dev, const struct sk_buff *skb, u16 rxq_index, u32 flow_id); #endif -u16 mlx5e_get_max_inline_cap(struct mlx5_core_dev *mdev); int mlx5e_create_tir(struct mlx5_core_dev *mdev, struct mlx5e_tir *tir, u32 *in, int inlen); void mlx5e_destroy_tir(struct mlx5_core_dev *mdev, diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c index 7bfe17b7c279..c57c929d7973 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c @@ -1118,13 +1118,9 @@ static int mlx5e_get_tunable(struct net_device *dev, const struct ethtool_tunable *tuna, void *data) { - const struct mlx5e_priv *priv = netdev_priv(dev); - int err = 0; + int err; switch (tuna->id) { - case ETHTOOL_TX_COPYBREAK: - *(u32 *)data = priv->channels.params.tx_max_inline; - break; case ETHTOOL_PFC_PREVENTION_TOUT: err = mlx5e_get_pfc_prevention_tout(dev, data); break; @@ -1141,35 +1137,11 @@ static int mlx5e_set_tunable(struct net_device *dev, const void *data) { struct mlx5e_priv *priv = netdev_priv(dev); - struct mlx5_core_dev *mdev = priv->mdev; - struct mlx5e_channels new_channels = {}; - int err = 0; - u32 val; + int err; mutex_lock(&priv->state_lock); switch (tuna->id) { - case ETHTOOL_TX_COPYBREAK: - val = *(u32 *)data; - if (val > mlx5e_get_max_inline_cap(mdev)) { - err = -EINVAL; - break; - } - - new_channels.params = priv->channels.params; - new_channels.params.tx_max_inline = val; - - if (!test_bit(MLX5E_STATE_OPENED, &priv->state)) { - priv->channels.params = new_channels.params; - break; - } - - err = mlx5e_open_channels(priv, &new_channels); - if (err) - break; - mlx5e_switch_priv_channels(priv, &new_channels, NULL); - - break; case ETHTOOL_PFC_PREVENTION_TOUT: err = mlx5e_set_pfc_prevention_tout(dev, *(u16 *)data); break; diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c index 7610a7916e96..5d8eb0a9c0f0 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c @@ -993,7 +993,6 @@ static int mlx5e_alloc_txqsq(struct mlx5e_channel *c, sq->channel = c; sq->txq_ix = txq_ix; sq->uar_map = mdev->mlx5e_res.bfreg.map; - sq->max_inline = params->tx_max_inline; sq->min_inline_mode = params->tx_min_inline_mode; if (MLX5_IPSEC_DEV(c->priv->mdev)) set_bit(MLX5E_SQ_STATE_IPSEC, &sq->state); @@ -3882,15 +3881,6 @@ static int mlx5e_check_required_hca_cap(struct mlx5_core_dev *mdev) return 0; } -u16 mlx5e_get_max_inline_cap(struct mlx5_core_dev *mdev) -{ - int bf_buf_size = (1 << MLX5_CAP_GEN(mdev, log_bf_reg_size)) / 2; - - return bf_buf_size - - sizeof(struct mlx5e_tx_wqe) + - 2 /*sizeof(mlx5e_tx_wqe.inline_hdr_start)*/; -} - void mlx5e_build_default_indir_rqt(u32 *indirection_rqt, int len, int num_channels) { @@ -4052,7 +4042,6 @@ void mlx5e_build_nic_params(struct mlx5_core_dev *mdev, mlx5e_set_tx_cq_mode_params(params, cq_period_mode); /* TX inline */ - params->tx_max_inline = mlx5e_get_max_inline_cap(mdev); params->tx_min_inline_mode = mlx5e_params_calculate_tx_min_inline(mdev); /* RSS */ diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c index ea4b255380a2..dd32f3e390ff 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c @@ -884,7 +884,6 @@ static void mlx5e_build_rep_params(struct mlx5_core_dev *mdev, params->rx_dim_enabled = MLX5_CAP_GEN(mdev, cq_moderation); mlx5e_set_rx_cq_mode_params(params, cq_period_mode); - params->tx_max_inline = mlx5e_get_max_inline_cap(mdev); params->num_tc = 1; params->lro_wqe_sz = MLX5E_PARAMS_DEFAULT_LRO_WQE_SZ;