Commit bd0f670e authored by Ong Boon Leong's avatar Ong Boon Leong Committed by David S. Miller
Browse files

net: stmmac: restructure tc implementation for RX VLAN Priority steering 



The current tc_add_flow() and tc_del_flow() use hardware L3 & L4 filters
as offloading. The number of L3/L4 filters is read from L3L4FNUM field
from MAC_HW_Feature1 register and is used to alloc priv->tc_entries[].

For RX frame steering based on VLAN priority offloading, we use
MAC_RXQ_CTRL2 & MAC_RXQ_CTRL3 registers and all VLAN priority level
can be configured independent from L3 & L4 filters.

Signed-off-by: default avatarOng Boon Leong <boon.leong.ong@intel.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 31222162

drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c

+22 −2
Original line number Diff line number Diff line
@@ -598,6 +598,26 @@ static int tc_del_flow(struct stmmac_priv *priv, 
	return ret;

}



static int tc_add_flow_cls(struct stmmac_priv *priv,

			   struct flow_cls_offload *cls)

{

	int ret;



	ret = tc_add_flow(priv, cls);



	return ret;

}



static int tc_del_flow_cls(struct stmmac_priv *priv,

			   struct flow_cls_offload *cls)

{

	int ret;



	ret = tc_del_flow(priv, cls);



	return ret;

}



static int tc_setup_cls(struct stmmac_priv *priv,

			struct flow_cls_offload *cls)

{
@@ -609,10 +629,10 @@ 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;