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cxgb4: add support to offload action vlan 

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

Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Kumar Sanghvi 2017-09-21 23:41:15 +05:30 committed by David S. Miller
parent 62488e4b53
commit cf2885a70f
1 changed files with 42 additions and 0 deletions
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42
drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c
View File

@ -34,6 +34,7 @@
#include <net/tc_act/tc_gact.h>
#include <net/tc_act/tc_mirred.h>
#include <net/tc_act/tc_vlan.h>
#include "cxgb4.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->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__);
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 {
netdev_err(dev, "%s: Unsupported action\n", __func__);
return -EOPNOTSUPP;