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net/sched: flower: Add number of vlan tags filter

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These are bookkeeping parts of the new num_of_vlans filter.
Defines, dump, load and set are being done here.

Signed-off-by: Boris Sukholitko <boris.sukholitko@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Boris Sukholitko 2022-04-19 11:14:33 +03:00 committed by David S. Miller
parent 34951fcf26
commit b400031282
2 changed files with 16 additions and 0 deletions
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2
include/uapi/linux/pkt_cls.h
View File

@ -587,6 +587,8 @@ enum {
TCA_FLOWER_KEY_HASH, /* u32 */
TCA_FLOWER_KEY_HASH_MASK, /* u32 */
TCA_FLOWER_KEY_NUM_OF_VLANS, /* u8 */
__TCA_FLOWER_MAX,
};

14
net/sched/cls_flower.c
View File

@ -72,6 +72,7 @@ struct fl_flow_key {
} tp_range;
struct flow_dissector_key_ct ct;
struct flow_dissector_key_hash hash;
struct flow_dissector_key_num_of_vlans num_of_vlans;
} __aligned(BITS_PER_LONG / 8); /* Ensure that we can do comparisons as longs. */
struct fl_flow_mask_range {
@ -712,6 +713,7 @@ static const struct nla_policy fl_policy[TCA_FLOWER_MAX + 1] = {
[TCA_FLOWER_FLAGS] = { .type = NLA_U32 },
[TCA_FLOWER_KEY_HASH] = { .type = NLA_U32 },
[TCA_FLOWER_KEY_HASH_MASK] = { .type = NLA_U32 },
[TCA_FLOWER_KEY_NUM_OF_VLANS] = { .type = NLA_U8 },
};
@ -1615,6 +1617,11 @@ static int fl_set_key(struct net *net, struct nlattr **tb,
fl_set_key_val(tb, key->eth.src, TCA_FLOWER_KEY_ETH_SRC,
mask->eth.src, TCA_FLOWER_KEY_ETH_SRC_MASK,
sizeof(key->eth.src));
fl_set_key_val(tb, &key->num_of_vlans,
TCA_FLOWER_KEY_NUM_OF_VLANS,
&mask->num_of_vlans,
TCA_FLOWER_UNSPEC,
sizeof(key->num_of_vlans));
if (is_vlan_key(tb[TCA_FLOWER_KEY_ETH_TYPE], &ethertype, key, mask)) {
fl_set_key_vlan(tb, ethertype, TCA_FLOWER_KEY_VLAN_ID,
@ -1906,6 +1913,8 @@ static void fl_init_dissector(struct flow_dissector *dissector,
FLOW_DISSECTOR_KEY_CT, ct);
FL_KEY_SET_IF_MASKED(mask, keys, cnt,
FLOW_DISSECTOR_KEY_HASH, hash);
FL_KEY_SET_IF_MASKED(mask, keys, cnt,
FLOW_DISSECTOR_KEY_NUM_OF_VLANS, num_of_vlans);
skb_flow_dissector_init(dissector, keys, cnt);
}
@ -2994,6 +3003,11 @@ static int fl_dump_key(struct sk_buff *skb, struct net *net,
sizeof(key->basic.n_proto)))
goto nla_put_failure;
if (mask->num_of_vlans.num_of_vlans) {
if (nla_put_u8(skb, TCA_FLOWER_KEY_NUM_OF_VLANS, key->num_of_vlans.num_of_vlans))
goto nla_put_failure;
}
if (fl_dump_key_mpls(skb, &key->mpls, &mask->mpls))
goto nla_put_failure;