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authorPablo Neira Ayuso <pablo@netfilter.org>2019-02-02 12:50:43 +0100
committerDavid S. Miller <davem@davemloft.net>2019-02-06 10:38:25 -0800
commit8f2566225ae2d62d532bb1810ed74fa4bbc5bbdb (patch)
tree4a3319b905ef761d89f106e64982ddaac2765273 /drivers/net/ethernet/qlogic/qede/qede_filter.c
parentMerge branch 'net-phy-add-and-use-further-MMD-accessors' (diff)
downloadlinux-dev-8f2566225ae2d62d532bb1810ed74fa4bbc5bbdb.tar.xz
linux-dev-8f2566225ae2d62d532bb1810ed74fa4bbc5bbdb.zip
flow_offload: add flow_rule and flow_match structures and use them
This patch wraps the dissector key and mask - that flower uses to represent the matching side - around the flow_match structure. To avoid a follow up patch that would edit the same LoCs in the drivers, this patch also wraps this new flow match structure around the flow rule object. This new structure will also contain the flow actions in follow up patches. This introduces two new interfaces: bool flow_rule_match_key(rule, dissector_id) that returns true if a given matching key is set on, and: flow_rule_match_XYZ(rule, &match); To fetch the matching side XYZ into the match container structure, to retrieve the key and the mask with one single call. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/qlogic/qede/qede_filter.c')
-rw-r--r--drivers/net/ethernet/qlogic/qede/qede_filter.c85
1 files changed, 36 insertions, 49 deletions
diff --git a/drivers/net/ethernet/qlogic/qede/qede_filter.c b/drivers/net/ethernet/qlogic/qede/qede_filter.c
index b16ce7d93caf..81d5b9304229 100644
--- a/drivers/net/ethernet/qlogic/qede/qede_filter.c
+++ b/drivers/net/ethernet/qlogic/qede/qede_filter.c
@@ -2033,24 +2033,20 @@ qede_tc_parse_ports(struct qede_dev *edev,
struct tc_cls_flower_offload *f,
struct qede_arfs_tuple *t)
{
- if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_PORTS)) {
- struct flow_dissector_key_ports *key, *mask;
-
- key = skb_flow_dissector_target(f->dissector,
- FLOW_DISSECTOR_KEY_PORTS,
- f->key);
- mask = skb_flow_dissector_target(f->dissector,
- FLOW_DISSECTOR_KEY_PORTS,
- f->mask);
-
- if ((key->src && mask->src != U16_MAX) ||
- (key->dst && mask->dst != U16_MAX)) {
+ struct flow_rule *rule = tc_cls_flower_offload_flow_rule(f);
+
+ if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_PORTS)) {
+ struct flow_match_ports match;
+
+ flow_rule_match_ports(rule, &match);
+ if ((match.key->src && match.mask->src != U16_MAX) ||
+ (match.key->dst && match.mask->dst != U16_MAX)) {
DP_NOTICE(edev, "Do not support ports masks\n");
return -EINVAL;
}
- t->src_port = key->src;
- t->dst_port = key->dst;
+ t->src_port = match.key->src;
+ t->dst_port = match.key->dst;
}
return 0;
@@ -2061,32 +2057,27 @@ qede_tc_parse_v6_common(struct qede_dev *edev,
struct tc_cls_flower_offload *f,
struct qede_arfs_tuple *t)
{
+ struct flow_rule *rule = tc_cls_flower_offload_flow_rule(f);
struct in6_addr zero_addr, addr;
memset(&zero_addr, 0, sizeof(addr));
memset(&addr, 0xff, sizeof(addr));
- if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_IPV6_ADDRS)) {
- struct flow_dissector_key_ipv6_addrs *key, *mask;
-
- key = skb_flow_dissector_target(f->dissector,
- FLOW_DISSECTOR_KEY_IPV6_ADDRS,
- f->key);
- mask = skb_flow_dissector_target(f->dissector,
- FLOW_DISSECTOR_KEY_IPV6_ADDRS,
- f->mask);
+ if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_IPV6_ADDRS)) {
+ struct flow_match_ipv6_addrs match;
- if ((memcmp(&key->src, &zero_addr, sizeof(addr)) &&
- memcmp(&mask->src, &addr, sizeof(addr))) ||
- (memcmp(&key->dst, &zero_addr, sizeof(addr)) &&
- memcmp(&mask->dst, &addr, sizeof(addr)))) {
+ flow_rule_match_ipv6_addrs(rule, &match);
+ if ((memcmp(&match.key->src, &zero_addr, sizeof(addr)) &&
+ memcmp(&match.mask->src, &addr, sizeof(addr))) ||
+ (memcmp(&match.key->dst, &zero_addr, sizeof(addr)) &&
+ memcmp(&match.mask->dst, &addr, sizeof(addr)))) {
DP_NOTICE(edev,
"Do not support IPv6 address prefix/mask\n");
return -EINVAL;
}
- memcpy(&t->src_ipv6, &key->src, sizeof(addr));
- memcpy(&t->dst_ipv6, &key->dst, sizeof(addr));
+ memcpy(&t->src_ipv6, &match.key->src, sizeof(addr));
+ memcpy(&t->dst_ipv6, &match.key->dst, sizeof(addr));
}
if (qede_tc_parse_ports(edev, f, t))
@@ -2100,24 +2091,20 @@ qede_tc_parse_v4_common(struct qede_dev *edev,
struct tc_cls_flower_offload *f,
struct qede_arfs_tuple *t)
{
- if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_IPV4_ADDRS)) {
- struct flow_dissector_key_ipv4_addrs *key, *mask;
+ struct flow_rule *rule = tc_cls_flower_offload_flow_rule(f);
- key = skb_flow_dissector_target(f->dissector,
- FLOW_DISSECTOR_KEY_IPV4_ADDRS,
- f->key);
- mask = skb_flow_dissector_target(f->dissector,
- FLOW_DISSECTOR_KEY_IPV4_ADDRS,
- f->mask);
+ if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_IPV4_ADDRS)) {
+ struct flow_match_ipv4_addrs match;
- if ((key->src && mask->src != U32_MAX) ||
- (key->dst && mask->dst != U32_MAX)) {
+ flow_rule_match_ipv4_addrs(rule, &match);
+ if ((match.key->src && match.mask->src != U32_MAX) ||
+ (match.key->dst && match.mask->dst != U32_MAX)) {
DP_NOTICE(edev, "Do not support ipv4 prefix/masks\n");
return -EINVAL;
}
- t->src_ipv4 = key->src;
- t->dst_ipv4 = key->dst;
+ t->src_ipv4 = match.key->src;
+ t->dst_ipv4 = match.key->dst;
}
if (qede_tc_parse_ports(edev, f, t))
@@ -2175,19 +2162,21 @@ qede_parse_flower_attr(struct qede_dev *edev, __be16 proto,
struct tc_cls_flower_offload *f,
struct qede_arfs_tuple *tuple)
{
+ struct flow_rule *rule = tc_cls_flower_offload_flow_rule(f);
+ struct flow_dissector *dissector = rule->match.dissector;
int rc = -EINVAL;
u8 ip_proto = 0;
memset(tuple, 0, sizeof(*tuple));
- if (f->dissector->used_keys &
+ if (dissector->used_keys &
~(BIT(FLOW_DISSECTOR_KEY_CONTROL) |
BIT(FLOW_DISSECTOR_KEY_IPV4_ADDRS) |
BIT(FLOW_DISSECTOR_KEY_BASIC) |
BIT(FLOW_DISSECTOR_KEY_IPV6_ADDRS) |
BIT(FLOW_DISSECTOR_KEY_PORTS))) {
DP_NOTICE(edev, "Unsupported key set:0x%x\n",
- f->dissector->used_keys);
+ dissector->used_keys);
return -EOPNOTSUPP;
}
@@ -2197,13 +2186,11 @@ qede_parse_flower_attr(struct qede_dev *edev, __be16 proto,
return -EPROTONOSUPPORT;
}
- if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_BASIC)) {
- struct flow_dissector_key_basic *key;
+ if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_BASIC)) {
+ struct flow_match_basic match;
- key = skb_flow_dissector_target(f->dissector,
- FLOW_DISSECTOR_KEY_BASIC,
- f->key);
- ip_proto = key->ip_proto;
+ flow_rule_match_basic(rule, &match);
+ ip_proto = match.key->ip_proto;
}
if (ip_proto == IPPROTO_TCP && proto == htons(ETH_P_IP))