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net/sched: add vlan push_eth and pop_eth action to the hardware IR

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Add vlan push_eth and pop_eth action to the hardware intermediate
representation model which would subsequently allow it to be used
by drivers for offload.

Signed-off-by: Maor Dickman <maord@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Maor Dickman 2022-03-15 13:02:09 +02:00 committed by Jakub Kicinski
parent a860352e9d
commit ab95465cde
3 changed files with 29 additions and 0 deletions
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6
include/net/flow_offload.h
View file

@ -150,6 +150,8 @@ enum flow_action_id {
FLOW_ACTION_PPPOE_PUSH,
FLOW_ACTION_JUMP,
FLOW_ACTION_PIPE,
FLOW_ACTION_VLAN_PUSH_ETH,
FLOW_ACTION_VLAN_POP_ETH,
NUM_FLOW_ACTIONS,
};
@ -211,6 +213,10 @@ struct flow_action_entry {
__be16 proto;
u8 prio;
} vlan;
struct { /* FLOW_ACTION_VLAN_PUSH_ETH */
unsigned char dst[ETH_ALEN];
unsigned char src[ETH_ALEN];
} vlan_push_eth;
struct { /* FLOW_ACTION_MANGLE */
/* FLOW_ACTION_ADD */
enum flow_action_mangle_base htype;

10
include/net/tc_act/tc_vlan.h
View file

@ -78,4 +78,14 @@ static inline u8 tcf_vlan_push_prio(const struct tc_action *a)
return tcfv_push_prio;
}
static inline void tcf_vlan_push_eth(unsigned char *src, unsigned char *dest,
const struct tc_action *a)
{
rcu_read_lock();
memcpy(dest, rcu_dereference(to_vlan(a)->vlan_p)->tcfv_push_dst, ETH_ALEN);
memcpy(dest, rcu_dereference(to_vlan(a)->vlan_p)->tcfv_push_src, ETH_ALEN);
rcu_read_unlock();
}
#endif /* __NET_TC_VLAN_H */

13
net/sched/act_vlan.c
View file

@ -390,6 +390,13 @@ static int tcf_vlan_offload_act_setup(struct tc_action *act, void *entry_data,
entry->vlan.proto = tcf_vlan_push_proto(act);
entry->vlan.prio = tcf_vlan_push_prio(act);
break;
case TCA_VLAN_ACT_POP_ETH:
entry->id = FLOW_ACTION_VLAN_POP_ETH;
break;
case TCA_VLAN_ACT_PUSH_ETH:
entry->id = FLOW_ACTION_VLAN_PUSH_ETH;
tcf_vlan_push_eth(entry->vlan_push_eth.src, entry->vlan_push_eth.dst, act);
break;
default:
return -EOPNOTSUPP;
}
@ -407,6 +414,12 @@ static int tcf_vlan_offload_act_setup(struct tc_action *act, void *entry_data,
case TCA_VLAN_ACT_MODIFY:
fl_action->id = FLOW_ACTION_VLAN_MANGLE;
break;
case TCA_VLAN_ACT_POP_ETH:
fl_action->id = FLOW_ACTION_VLAN_POP_ETH;
break;
case TCA_VLAN_ACT_PUSH_ETH:
fl_action->id = FLOW_ACTION_VLAN_PUSH_ETH;
break;
default:
return -EOPNOTSUPP;
}