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Only update lossy buffers config when manual PFC configuration was done

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in mlx5en(4).

Submitted by:	kib@
MFC after:	3 days
Sponsored by:	Mellanox Technologies
This commit is contained in:
hselasky 2019-10-02 11:02:54 +00:00
parent 9b0d03698b
commit 6fbbf1abad
3 changed files with 7 additions and 2 deletions
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1
sys/dev/mlx5/mlx5_en/en.h
View File

@ -1046,6 +1046,7 @@ struct mlx5e_priv {
u_int clbr_gen;
struct mlx5e_dcbx dcbx;
bool sw_is_port_buf_owner;
struct pfil_head *pfil;
struct mlx5e_channel channel[];

2
sys/dev/mlx5/mlx5_en/mlx5_en_main.c
View File

@ -3903,7 +3903,7 @@ mlx5e_sysctl_rx_priority_flow_control(SYSCTL_HANDLER_ARGS)
/* check if update is required */
if (rx_pfc != priv->params.rx_priority_flow_control) {
err = -mlx5e_set_port_pfc(priv);
if (err == 0)
if (err == 0 && priv->sw_is_port_buf_owner)
err = mlx5e_update_buf_lossy(priv);
}
done:

6
sys/dev/mlx5/mlx5_en/mlx5_en_port_buffer.c
View File

@ -263,6 +263,7 @@ int mlx5e_port_manual_buffer_config(struct mlx5e_priv *priv,
if (err)
return err;
priv->sw_is_port_buf_owner = true;
err = update_buffer_lossy(mtu, pfc->pfc_en, buffer, xoff,
&port_buffer, &update_buffer);
if (err)
@ -316,13 +317,16 @@ int mlx5e_port_manual_buffer_config(struct mlx5e_priv *priv,
/* Apply the settings */
if (update_buffer) {
priv->sw_is_port_buf_owner = true;
err = port_set_buffer(priv, &port_buffer);
if (err)
return err;
}
if (update_prio2buffer)
if (update_prio2buffer) {
priv->sw_is_port_buf_owner = true;
err = mlx5e_port_set_priority2buffer(priv->mdev, prio2buffer);
}
return err;
}