Author: hselasky
Date: Wed Oct 2 11:02:54 2019
New Revision: 352995
URL: https://svnweb.freebsd.org/changeset/base/352995
Log:
Only update lossy buffers config when manual PFC configuration was done
in mlx5en(4).
Submitted by: kib@
MFC after: 3 days
Sponsored by: Mellanox Technologies
Modified:
head/sys/dev/mlx5/mlx5_en/en.h
head/sys/dev/mlx5/mlx5_en/mlx5_en_main.c
head/sys/dev/mlx5/mlx5_en/mlx5_en_port_buffer.c
Modified: head/sys/dev/mlx5/mlx5_en/en.h
==============================================================================
--- head/sys/dev/mlx5/mlx5_en/en.h Wed Oct 2 11:01:05 2019
(r352994)
+++ head/sys/dev/mlx5/mlx5_en/en.h Wed Oct 2 11:02:54 2019
(r352995)
@@ -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[];
Modified: head/sys/dev/mlx5/mlx5_en/mlx5_en_main.c
==============================================================================
--- head/sys/dev/mlx5/mlx5_en/mlx5_en_main.c Wed Oct 2 11:01:05 2019
(r352994)
+++ head/sys/dev/mlx5/mlx5_en/mlx5_en_main.c Wed Oct 2 11:02:54 2019
(r352995)
@@ -3903,7 +3903,7 @@ mlx5e_sysctl_rx_priority_flow_control(SYSCTL_HANDLER_A
/* 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:
Modified: head/sys/dev/mlx5/mlx5_en/mlx5_en_port_buffer.c
==============================================================================
--- head/sys/dev/mlx5/mlx5_en/mlx5_en_port_buffer.c Wed Oct 2 11:01:05
2019 (r352994)
+++ head/sys/dev/mlx5/mlx5_en/mlx5_en_port_buffer.c Wed Oct 2 11:02:54
2019 (r352995)
@@ -263,6 +263,7 @@ int mlx5e_port_manual_buffer_config(struct mlx5e_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
/* 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;
}
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