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| author | Kamal Heib | 2016-11-22 10:03:32 +0100 |
|---|---|---|
| committer | Saeed Mahameed | 2017-01-24 20:14:07 +0100 |
| commit | b4e029da29ce8244879b607fbf0514d1087dc3f5 (patch) | |
| tree | 5903189dd7cb091095c6df53c89c76a7e6550d91 /drivers/net/ethernet/mellanox/mlx5/core/en_main.c | |
| parent | IB/mlx5: Enable Eth VFs to query their min-inline value for user-space (diff) | |
| download | kernel-qcow2-linux-b4e029da29ce8244879b607fbf0514d1087dc3f5.tar.gz kernel-qcow2-linux-b4e029da29ce8244879b607fbf0514d1087dc3f5.tar.xz kernel-qcow2-linux-b4e029da29ce8244879b607fbf0514d1087dc3f5.zip | |
net/mlx5e: Reduce memory consumption on kdump kernel
Reduce memory consumption on kdump kernel by decreasing the number of
channels to 1 and the size of RQs and SQs to the minimal values.
Signed-off-by: Kamal Heib <kamalh@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 | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c index 636372873e64..e829143efc14 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c @@ -31,6 +31,7 @@ */ #include <net/tc_act/tc_gact.h> +#include <linux/crash_dump.h> #include <net/pkt_cls.h> #include <linux/mlx5/fs.h> #include <net/vxlan.h> @@ -83,7 +84,9 @@ static void mlx5e_set_rq_type_params(struct mlx5e_priv *priv, u8 rq_type) priv->params.rq_wq_type = rq_type; switch (priv->params.rq_wq_type) { case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ: - priv->params.log_rq_size = MLX5E_PARAMS_DEFAULT_LOG_RQ_SIZE_MPW; + priv->params.log_rq_size = is_kdump_kernel() ? + MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE_MPW : + MLX5E_PARAMS_DEFAULT_LOG_RQ_SIZE_MPW; priv->params.mpwqe_log_stride_sz = MLX5E_GET_PFLAG(priv, MLX5E_PFLAG_RX_CQE_COMPRESS) ? MLX5_MPWRQ_LOG_STRIDE_SIZE_CQE_COMPRESS : @@ -92,7 +95,9 @@ static void mlx5e_set_rq_type_params(struct mlx5e_priv *priv, u8 rq_type) priv->params.mpwqe_log_stride_sz; break; default: /* MLX5_WQ_TYPE_LINKED_LIST */ - priv->params.log_rq_size = MLX5E_PARAMS_DEFAULT_LOG_RQ_SIZE; + priv->params.log_rq_size = is_kdump_kernel() ? + MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE : + MLX5E_PARAMS_DEFAULT_LOG_RQ_SIZE; } priv->params.min_rx_wqes = mlx5_min_rx_wqes(priv->params.rq_wq_type, BIT(priv->params.log_rq_size)); @@ -1508,6 +1513,14 @@ static int mlx5e_set_tx_maxrate(struct net_device *dev, int index, u32 rate) return err; } +static inline int mlx5e_get_max_num_channels(struct mlx5_core_dev *mdev) +{ + return is_kdump_kernel() ? + MLX5E_MIN_NUM_CHANNELS : + min_t(int, mdev->priv.eq_table.num_comp_vectors, + MLX5E_MAX_NUM_CHANNELS); +} + static int mlx5e_open_channel(struct mlx5e_priv *priv, int ix, struct mlx5e_channel_param *cparam, struct mlx5e_channel **cp) @@ -3491,7 +3504,9 @@ static void mlx5e_build_nic_netdev_priv(struct mlx5_core_dev *mdev, priv->params.lro_timeout = mlx5e_choose_lro_timeout(mdev, MLX5E_DEFAULT_LRO_TIMEOUT); - priv->params.log_sq_size = MLX5E_PARAMS_DEFAULT_LOG_SQ_SIZE; + priv->params.log_sq_size = is_kdump_kernel() ? + MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE : + MLX5E_PARAMS_DEFAULT_LOG_SQ_SIZE; /* set CQE compression */ priv->params.rx_cqe_compress_def = false; |