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flow_offload: reject configuration of packet-per-second policing in offload drivers

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A follow-up patch will allow users to configures packet-per-second policing
in the software datapath. In preparation for this, teach all drivers that
support offload of the policer action to reject such configuration as
currently none of them support it.

Signed-off-by: Baowen Zheng <baowen.zheng@corigine.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: Louis Peens <louis.peens@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Baowen Zheng 2021-03-12 15:08:30 +01:00 committed by David S. Miller
parent 25660156f4
commit 6a56e19902
8 changed files with 46 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/net/dsa/sja1105/sja1105_flower.c
View File

@ -322,6 +322,12 @@ int sja1105_cls_flower_add(struct dsa_switch *ds, int port,
flow_action_for_each(i, act, &rule->action) {
switch (act->id) {
case FLOW_ACTION_POLICE:
if (act->police.rate_pkt_ps) {
NL_SET_ERR_MSG_MOD(extack,
"QoS offload not support packets per second");
goto out;
}
rc = sja1105_flower_policer(priv, port, extack, cookie,
&key,
act->police.rate_bytes_ps,

11
drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_matchall.c
View File

@ -48,6 +48,11 @@ static int cxgb4_matchall_egress_validate(struct net_device *dev,
flow_action_for_each(i, entry, actions) {
switch (entry->id) {
case FLOW_ACTION_POLICE:
if (entry->police.rate_pkt_ps) {
NL_SET_ERR_MSG_MOD(extack,
"QoS offload not support packets per second");
return -EOPNOTSUPP;
}
/* Convert bytes per second to bits per second */
if (entry->police.rate_bytes_ps * 8 > max_link_rate) {
NL_SET_ERR_MSG_MOD(extack,
@ -145,7 +150,11 @@ static int cxgb4_matchall_alloc_tc(struct net_device *dev,
flow_action_for_each(i, entry, &cls->rule->action)
if (entry->id == FLOW_ACTION_POLICE)
break;
if (entry->police.rate_pkt_ps) {
NL_SET_ERR_MSG_MOD(extack,
"QoS offload not support packets per second");
return -EOPNOTSUPP;
}
/* Convert from bytes per second to Kbps */
p.u.params.maxrate = div_u64(entry->police.rate_bytes_ps * 8, 1000);
p.u.params.channel = pi->tx_chan;

5
drivers/net/ethernet/freescale/enetc/enetc_qos.c
View File

@ -1221,6 +1221,11 @@ static int enetc_psfp_parse_clsflower(struct enetc_ndev_priv *priv,
/* Flow meter and max frame size */
if (entryp) {
if (entryp->police.rate_pkt_ps) {
NL_SET_ERR_MSG_MOD(extack, "QoS offload not support packets per second");
err = -EOPNOTSUPP;
goto free_sfi;
}
if (entryp->police.burst) {
fmi = kzalloc(sizeof(*fmi), GFP_KERNEL);
if (!fmi) {

4
drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
View File

@ -4538,6 +4538,10 @@ static int scan_tc_matchall_fdb_actions(struct mlx5e_priv *priv,
flow_action_for_each(i, act, flow_action) {
switch (act->id) {
case FLOW_ACTION_POLICE:
if (act->police.rate_pkt_ps) {
NL_SET_ERR_MSG_MOD(extack, "QoS offload not support packets per second");
return -EOPNOTSUPP;
}
err = apply_police_params(priv, act->police.rate_bytes_ps, extack);
if (err)
return err;

5
drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c
View File

@ -190,6 +190,11 @@ static int mlxsw_sp_flower_parse_actions(struct mlxsw_sp *mlxsw_sp,
return -EOPNOTSUPP;
}
if (act->police.rate_pkt_ps) {
NL_SET_ERR_MSG_MOD(extack, "QoS offload not support packets per second");
return -EOPNOTSUPP;
}
/* The kernel might adjust the requested burst size so
* that it is not exactly a power of two. Re-adjust it
* here since the hardware only supports burst sizes

5
drivers/net/ethernet/mscc/ocelot_flower.c
View File

@ -220,6 +220,11 @@ static int ocelot_flower_parse_action(struct ocelot *ocelot, int port,
"Last action must be GOTO");
return -EOPNOTSUPP;
}
if (a->police.rate_pkt_ps) {
NL_SET_ERR_MSG_MOD(extack,
"QoS offload not support packets per second");
return -EOPNOTSUPP;
}
filter->action.police_ena = true;
rate = a->police.rate_bytes_ps;
filter->action.pol.rate = div_u64(rate, 1000) * 8;

6
drivers/net/ethernet/mscc/ocelot_net.c
View File

@ -251,6 +251,12 @@ static int ocelot_setup_tc_cls_matchall(struct ocelot_port_private *priv,
return -EEXIST;
}
if (action->police.rate_pkt_ps) {
NL_SET_ERR_MSG_MOD(extack,
"QoS offload not support packets per second");
return -EOPNOTSUPP;
}
pol.rate = (u32)div_u64(action->police.rate_bytes_ps, 1000) * 8;
pol.burst = action->police.burst;

5
drivers/net/ethernet/netronome/nfp/flower/qos_conf.c
View File

@ -104,6 +104,11 @@ nfp_flower_install_rate_limiter(struct nfp_app *app, struct net_device *netdev,
return -EOPNOTSUPP;
}
if (action->police.rate_pkt_ps) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: qos rate limit offload not support packets per second");
return -EOPNOTSUPP;
}
rate = action->police.rate_bytes_ps;
burst = action->police.burst;
netdev_port_id = nfp_repr_get_port_id(netdev);