Author: hselasky
Date: Fri Nov 10 14:14:54 2017
New Revision: 325660
URL: https://svnweb.freebsd.org/changeset/base/325660
Log:
Add support for configuring local multicast and unicast data traffic loopback
in mlx5en(4) driver via the sysctl interface.
Sponsored by: Mellanox Technologies
MFC after: 1 week
Modified:
head/sys/dev/mlx5/mlx5_en/en.h
head/sys/dev/mlx5/mlx5_en/mlx5_en_ethtool.c
Modified: head/sys/dev/mlx5/mlx5_en/en.h
==============================================================================
--- head/sys/dev/mlx5/mlx5_en/en.h Fri Nov 10 14:10:41 2017
(r325659)
+++ head/sys/dev/mlx5/mlx5_en/en.h Fri Nov 10 14:14:54 2017
(r325660)
@@ -411,7 +411,9 @@ struct mlx5e_params {
m(+1, u64 modify_tx_dma, "modify_tx_dma", "0: Enable TX 1: Disable TX") \
m(+1, u64 modify_rx_dma, "modify_rx_dma", "0: Enable RX 1: Disable RX") \
m(+1, u64 diag_pci_enable, "diag_pci_enable", "0: Disabled 1: Enabled") \
- m(+1, u64 diag_general_enable, "diag_general_enable", "0: Disabled 1:
Enabled")
+ m(+1, u64 diag_general_enable, "diag_general_enable", "0: Disabled 1:
Enabled") \
+ m(+1, u64 mc_local_lb, "mc_local_lb", "0: Local multicast loopback enabled
1: Disabled") \
+ m(+1, u64 uc_local_lb, "uc_local_lb", "0: Local unicast loopback enabled 1:
Disabled")
#define MLX5E_PARAMS_NUM (0 MLX5E_PARAMS(MLX5E_STATS_COUNT))
Modified: head/sys/dev/mlx5/mlx5_en/mlx5_en_ethtool.c
==============================================================================
--- head/sys/dev/mlx5/mlx5_en/mlx5_en_ethtool.c Fri Nov 10 14:10:41 2017
(r325659)
+++ head/sys/dev/mlx5/mlx5_en/mlx5_en_ethtool.c Fri Nov 10 14:14:54 2017
(r325660)
@@ -421,6 +421,30 @@ mlx5e_ethtool_handler(SYSCTL_HANDLER_ARGS)
priv->params_ethtool.diag_general_enable);
break;
+ case MLX5_PARAM_OFFSET(mc_local_lb):
+ priv->params_ethtool.mc_local_lb =
+ priv->params_ethtool.mc_local_lb ? 1 : 0;
+
+ if (MLX5_CAP_GEN(priv->mdev, disable_local_lb)) {
+ error = mlx5_nic_vport_modify_local_lb(priv->mdev,
+ MLX5_LOCAL_MC_LB, priv->params_ethtool.mc_local_lb);
+ } else {
+ error = EOPNOTSUPP;
+ }
+ break;
+
+ case MLX5_PARAM_OFFSET(uc_local_lb):
+ priv->params_ethtool.uc_local_lb =
+ priv->params_ethtool.uc_local_lb ? 1 : 0;
+
+ if (MLX5_CAP_GEN(priv->mdev, disable_local_lb)) {
+ error = mlx5_nic_vport_modify_local_lb(priv->mdev,
+ MLX5_LOCAL_UC_LB, priv->params_ethtool.uc_local_lb);
+ } else {
+ error = EOPNOTSUPP;
+ }
+ break;
+
default:
break;
}
@@ -731,6 +755,20 @@ mlx5e_create_ethtool(struct mlx5e_priv *priv)
priv->params_ethtool.hw_lro = priv->params.hw_lro_en;
priv->params_ethtool.cqe_zipping = priv->params.cqe_zipping_en;
mlx5e_ethtool_sync_tx_completion_fact(priv);
+
+ /* get default values for local loopback, if any */
+ if (MLX5_CAP_GEN(priv->mdev, disable_local_lb)) {
+ int err;
+ u8 val;
+
+ err = mlx5_nic_vport_query_local_lb(priv->mdev,
MLX5_LOCAL_MC_LB, &val);
+ if (err == 0)
+ priv->params_ethtool.mc_local_lb = val;
+
+ err = mlx5_nic_vport_query_local_lb(priv->mdev,
MLX5_LOCAL_UC_LB, &val);
+ if (err == 0)
+ priv->params_ethtool.uc_local_lb = val;
+ }
/* create root node */
node = SYSCTL_ADD_NODE(&priv->sysctl_ctx,
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