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Commit cf2885a7 authored by Kumar Sanghvi's avatar Kumar Sanghvi Committed by David S. Miller
Browse files

cxgb4: add support to offload action vlan 



Add support for offloading tc-flower flows having
vlan actions: pop, push and modify.

Signed-off-by: default avatarKumar Sanghvi <kumaras@chelsio.com>
Signed-off-by: default avatarRahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: default avatarGanesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 62488e4b

drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c

+42 −0
Original line number Original line Diff line number Diff line
@@ -34,6 +34,7 @@ 




#include <net/tc_act/tc_gact.h>

#include <net/tc_act/tc_gact.h>

#include <net/tc_act/tc_mirred.h>

#include <net/tc_act/tc_mirred.h>

#include <net/tc_act/tc_vlan.h>





#include "cxgb4.h"

#include "cxgb4.h"

#include "cxgb4_tc_flower.h"

#include "cxgb4_tc_flower.h"
@@ -185,6 +186,27 @@ static void cxgb4_process_flow_actions(struct net_device *in, 




			fs->action = FILTER_SWITCH;

			fs->action = FILTER_SWITCH;

			fs->eport = pi->port_id;

			fs->eport = pi->port_id;

		} else if (is_tcf_vlan(a)) {

			u32 vlan_action = tcf_vlan_action(a);

			u8 prio = tcf_vlan_push_prio(a);

			u16 vid = tcf_vlan_push_vid(a);

			u16 vlan_tci = (prio << VLAN_PRIO_SHIFT) | vid;



			switch (vlan_action) {

			case TCA_VLAN_ACT_POP:

				fs->newvlan |= VLAN_REMOVE;

				break;

			case TCA_VLAN_ACT_PUSH:

				fs->newvlan |= VLAN_INSERT;

				fs->vlan = vlan_tci;

				break;

			case TCA_VLAN_ACT_MODIFY:

				fs->newvlan |= VLAN_REWRITE;

				fs->vlan = vlan_tci;

				break;

			default:

				break;

			}

		}

		}

	}

	}

}

}
@@ -222,6 +244,26 @@ static int cxgb4_validate_flow_actions(struct net_device *dev, 
					   __func__);

					   __func__);

				return -EINVAL;

				return -EINVAL;

			}

			}

		} else if (is_tcf_vlan(a)) {

			u16 proto = be16_to_cpu(tcf_vlan_push_proto(a));

			u32 vlan_action = tcf_vlan_action(a);



			switch (vlan_action) {

			case TCA_VLAN_ACT_POP:

				break;

			case TCA_VLAN_ACT_PUSH:

			case TCA_VLAN_ACT_MODIFY:

				if (proto != ETH_P_8021Q) {

					netdev_err(dev, "%s: Unsupported vlan proto\n",

						   __func__);

					return -EOPNOTSUPP;

				}

				break;

			default:

				netdev_err(dev, "%s: Unsupported vlan action\n",

					   __func__);

				return -EOPNOTSUPP;

			}

		} else {

		} else {

			netdev_err(dev, "%s: Unsupported action\n", __func__);

			netdev_err(dev, "%s: Unsupported action\n", __func__);

			return -EOPNOTSUPP;

			return -EOPNOTSUPP;