diff options
| author |   Or Gerlitz <ogerlitz@mellanox.com> | 2018-01-04 12:47:19 +0200 |
|---|---|---|
| committer |   Saeed Mahameed <saeedm@mellanox.com> | 2018-01-19 22:41:32 +0200 |
| commit | eb9180f792afe6e1f5a723381632791ad134ec39 (patch) | |
| tree | c9d458ef7911601dcb31bf453d22313e68ad3dee /drivers/net/ethernet/mellanox/mlx5/core/en_tc.c | |
| parent | net/mlx5: Enable setting hairpin queue size (diff) | |
| download | linux-dev-eb9180f792afe6e1f5a723381632791ad134ec39.tar.xz linux-dev-eb9180f792afe6e1f5a723381632791ad134ec39.zip | |
net/mlx5e: Set hairpin queue size
For a given hairpin packet buffer size, different queue sizes
(values of log_hairpin_num_packets) determine how the data is broken
to strides on the RQ. Currently the chosen value is set to 64B strides.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/en_tc.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_tc.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c index 7a4f577d1c5b..fd98b0dc610f 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c @@ -599,8 +599,13 @@ static int mlx5e_hairpin_flow_add(struct mlx5e_priv *priv, MLX5_CAP_GEN(priv->mdev, log_max_hairpin_wq_data_sz)); params.log_data_size = max_t(u8, params.log_data_size, MLX5_CAP_GEN(priv->mdev, log_min_hairpin_wq_data_sz)); - params.q_counter = priv->q_counter; + params.log_num_packets = params.log_data_size - + MLX5_MPWRQ_MIN_LOG_STRIDE_SZ(priv->mdev); + params.log_num_packets = min_t(u8, params.log_num_packets, + MLX5_CAP_GEN(priv->mdev, log_max_hairpin_num_packets)); + + params.q_counter = priv->q_counter; /* set hairpin pair per each 50Gbs share of the link */ mlx5e_get_max_linkspeed(priv->mdev, &link_speed); link_speed = max_t(u32, link_speed, 50000); @@ -614,9 +619,9 @@ static int mlx5e_hairpin_flow_add(struct mlx5e_priv *priv, goto create_hairpin_err; } - netdev_dbg(priv->netdev, "add hairpin: tirn %x rqn %x peer %s sqn %x prio %d log data size %d\n", + netdev_dbg(priv->netdev, "add hairpin: tirn %x rqn %x peer %s sqn %x prio %d (log) data %d packets %d\n", hp->tirn, hp->pair->rqn[0], hp->pair->peer_mdev->priv.name, - hp->pair->sqn[0], match_prio, params.log_data_size); + hp->pair->sqn[0], match_prio, params.log_data_size, params.log_num_packets); hpe->hp = hp; hash_add(priv->fs.tc.hairpin_tbl, &hpe->hairpin_hlist, |