diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c index 44bb133c3000..b80cb2985b39 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c @@ -598,6 +598,87 @@ static int tc_del_flow(struct stmmac_priv *priv, return ret; } +#define VLAN_PRIO_FULL_MASK (0x07) + +static int tc_add_vlan_flow(struct stmmac_priv *priv, + struct flow_cls_offload *cls) +{ + struct flow_rule *rule = flow_cls_offload_flow_rule(cls); + struct flow_dissector *dissector = rule->match.dissector; + int tc = tc_classid_to_hwtc(priv->dev, cls->classid); + struct flow_match_vlan match; + + /* Nothing to do here */ + if (!dissector_uses_key(dissector, FLOW_DISSECTOR_KEY_VLAN)) + return -EINVAL; + + if (tc < 0) { + netdev_err(priv->dev, "Invalid traffic class\n"); + return -EINVAL; + } + + flow_rule_match_vlan(rule, &match); + + if (match.mask->vlan_priority) { + u32 prio; + + if (match.mask->vlan_priority != VLAN_PRIO_FULL_MASK) { + netdev_err(priv->dev, "Only full mask is supported for VLAN priority"); + return -EINVAL; + } + + prio = BIT(match.key->vlan_priority); + stmmac_rx_queue_prio(priv, priv->hw, prio, tc); + } + + return 0; +} + +static int tc_del_vlan_flow(struct stmmac_priv *priv, + struct flow_cls_offload *cls) +{ + struct flow_rule *rule = flow_cls_offload_flow_rule(cls); + struct flow_dissector *dissector = rule->match.dissector; + int tc = tc_classid_to_hwtc(priv->dev, cls->classid); + + /* Nothing to do here */ + if (!dissector_uses_key(dissector, FLOW_DISSECTOR_KEY_VLAN)) + return -EINVAL; + + if (tc < 0) { + netdev_err(priv->dev, "Invalid traffic class\n"); + return -EINVAL; + } + + stmmac_rx_queue_prio(priv, priv->hw, 0, tc); + + return 0; +} + +static int tc_add_flow_cls(struct stmmac_priv *priv, + struct flow_cls_offload *cls) +{ + int ret; + + ret = tc_add_flow(priv, cls); + if (!ret) + return ret; + + return tc_add_vlan_flow(priv, cls); +} + +static int tc_del_flow_cls(struct stmmac_priv *priv, + struct flow_cls_offload *cls) +{ + int ret; + + ret = tc_del_flow(priv, cls); + if (!ret) + return ret; + + return tc_del_vlan_flow(priv, cls); +} + static int tc_setup_cls(struct stmmac_priv *priv, struct flow_cls_offload *cls) { @@ -609,10 +690,10 @@ static int tc_setup_cls(struct stmmac_priv *priv, switch (cls->command) { case FLOW_CLS_REPLACE: - ret = tc_add_flow(priv, cls); + ret = tc_add_flow_cls(priv, cls); break; case FLOW_CLS_DESTROY: - ret = tc_del_flow(priv, cls); + ret = tc_del_flow_cls(priv, cls); break; default: return -EOPNOTSUPP;