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net/mlx5e: Fix traffic being dropped on VF representor

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Increase representor netdev RQ size to avoid dropped packets.
The current size (two) is just too small to keep up with
conventional slow path traffic patterns.
Also match the SQ size to the RQ size.

Fixes: cb67b83292 ("net/mlx5e: Introduce SRIOV VF representors")
Signed-off-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Paul Blakey <paulb@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Roi Dayan 2018-02-28 12:56:42 +02:00 committed by Saeed Mahameed
parent b392a2078b
commit 4246f698dd
1 changed files with 7 additions and 2 deletions
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9
drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
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@ -44,6 +44,11 @@
#include "en_tc.h"
#include "fs_core.h"
#define MLX5E_REP_PARAMS_LOG_SQ_SIZE \
max(0x6, MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE)
#define MLX5E_REP_PARAMS_LOG_RQ_SIZE \
max(0x6, MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE)
static const char mlx5e_rep_driver_name[] = "mlx5e_rep";
static void mlx5e_rep_get_drvinfo(struct net_device *dev,
@ -878,9 +883,9 @@ static void mlx5e_build_rep_params(struct mlx5_core_dev *mdev,
MLX5_CQ_PERIOD_MODE_START_FROM_CQE :
MLX5_CQ_PERIOD_MODE_START_FROM_EQE;
params->log_sq_size = MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE;
params->log_sq_size = MLX5E_REP_PARAMS_LOG_SQ_SIZE;
params->rq_wq_type = MLX5_WQ_TYPE_LINKED_LIST;
params->log_rq_size = MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE;
params->log_rq_size = MLX5E_REP_PARAMS_LOG_RQ_SIZE;
params->rx_dim_enabled = MLX5_CAP_GEN(mdev, cq_moderation);
mlx5e_set_rx_cq_mode_params(params, cq_period_mode);