diff options
| author |   Petr Machata <petrm@mellanox.com> | 2020-03-13 01:10:58 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2020-03-14 21:03:46 -0700 |
| commit | 8040c96b4fc60d2f2c7e7eb3bfe65b633a30af90 (patch) | |
| tree | 6b59ac91823534c818266625a1b7ff95d6774e21 /drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c | |
| parent | net: sched: RED: Introduce an ECN nodrop mode (diff) | |
| download | linux-dev-8040c96b4fc60d2f2c7e7eb3bfe65b633a30af90.tar.xz linux-dev-8040c96b4fc60d2f2c7e7eb3bfe65b633a30af90.zip | |
mlxsw: spectrum_qdisc: Offload RED ECN nodrop mode
RED ECN nodrop mode means that non-ECT traffic should not be early-dropped,
but enqueued normally instead. In Spectrum systems, this is achieved by
disabling CWTPM.ew (enable WRED) for a given traffic class.
So far CWTPM.ew was unconditionally enabled. Instead disable it when the
RED qdisc is in nodrop mode.
Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c index b9f429ec0db4..670a43fe2a00 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c @@ -323,7 +323,7 @@ mlxsw_sp_qdisc_get_tc_stats(struct mlxsw_sp_port *mlxsw_sp_port, static int mlxsw_sp_tclass_congestion_enable(struct mlxsw_sp_port *mlxsw_sp_port, int tclass_num, u32 min, u32 max, - u32 probability, bool is_ecn) + u32 probability, bool is_wred, bool is_ecn) { char cwtpm_cmd[MLXSW_REG_CWTPM_LEN]; char cwtp_cmd[MLXSW_REG_CWTP_LEN]; @@ -341,7 +341,7 @@ mlxsw_sp_tclass_congestion_enable(struct mlxsw_sp_port *mlxsw_sp_port, return err; mlxsw_reg_cwtpm_pack(cwtpm_cmd, mlxsw_sp_port->local_port, tclass_num, - MLXSW_REG_CWTP_DEFAULT_PROFILE, true, is_ecn); + MLXSW_REG_CWTP_DEFAULT_PROFILE, is_wred, is_ecn); return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(cwtpm), cwtpm_cmd); } @@ -445,8 +445,9 @@ mlxsw_sp_qdisc_red_replace(struct mlxsw_sp_port *mlxsw_sp_port, u32 handle, prob = DIV_ROUND_UP(prob, 1 << 16); min = mlxsw_sp_bytes_cells(mlxsw_sp, p->min); max = mlxsw_sp_bytes_cells(mlxsw_sp, p->max); - return mlxsw_sp_tclass_congestion_enable(mlxsw_sp_port, tclass_num, min, - max, prob, p->is_ecn); + return mlxsw_sp_tclass_congestion_enable(mlxsw_sp_port, tclass_num, + min, max, prob, + !p->is_nodrop, p->is_ecn); } static void |