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Subject[PATCH net-next v2 2/2] net: prestera: add support for port range filters
Date
This adds support for port-range rules:

$ tc qdisc add ... clsact
$ tc filter add ... flower ... src_port <PMIN>-<PMAX> ...

Co-developed-by: Volodymyr Mytnyk <volodymyr.mytnyk@plvision.eu>
Signed-off-by: Volodymyr Mytnyk <volodymyr.mytnyk@plvision.eu>
Signed-off-by: Maksym Glubokiy <maksym.glubokiy@plvision.eu>
---
.../marvell/prestera/prestera_flower.c | 24 +++++++++++++++++++
1 file changed, 24 insertions(+)

diff --git a/drivers/net/ethernet/marvell/prestera/prestera_flower.c b/drivers/net/ethernet/marvell/prestera/prestera_flower.c
index a54748ac6541..652aa95e65ac 100644
--- a/drivers/net/ethernet/marvell/prestera/prestera_flower.c
+++ b/drivers/net/ethernet/marvell/prestera/prestera_flower.c
@@ -202,6 +202,7 @@ static int prestera_flower_parse(struct prestera_flow_block *block,
BIT(FLOW_DISSECTOR_KEY_IPV6_ADDRS) |
BIT(FLOW_DISSECTOR_KEY_ICMP) |
BIT(FLOW_DISSECTOR_KEY_PORTS) |
+ BIT(FLOW_DISSECTOR_KEY_PORTS_RANGE) |
BIT(FLOW_DISSECTOR_KEY_VLAN))) {
NL_SET_ERR_MSG_MOD(f->common.extack, "Unsupported key");
return -EOPNOTSUPP;
@@ -301,6 +302,29 @@ static int prestera_flower_parse(struct prestera_flow_block *block,
rule_match_set(r_match->mask, L4_PORT_DST, match.mask->dst);
}

+ if (flow_rule_match_key(f_rule, FLOW_DISSECTOR_KEY_PORTS_RANGE)) {
+ struct flow_match_ports_range match;
+ __be32 tp_key, tp_mask;
+
+ flow_rule_match_ports_range(f_rule, &match);
+
+ /* src port range (min, max) */
+ tp_key = htonl(ntohs(match.key->tp_min.src) |
+ (ntohs(match.key->tp_max.src) << 16));
+ tp_mask = htonl(ntohs(match.mask->tp_min.src) |
+ (ntohs(match.mask->tp_max.src) << 16));
+ rule_match_set(r_match->key, L4_PORT_RANGE_SRC, tp_key);
+ rule_match_set(r_match->mask, L4_PORT_RANGE_SRC, tp_mask);
+
+ /* dst port range (min, max) */
+ tp_key = htonl(ntohs(match.key->tp_min.dst) |
+ (ntohs(match.key->tp_max.dst) << 16));
+ tp_mask = htonl(ntohs(match.mask->tp_min.dst) |
+ (ntohs(match.mask->tp_max.dst) << 16));
+ rule_match_set(r_match->key, L4_PORT_RANGE_DST, tp_key);
+ rule_match_set(r_match->mask, L4_PORT_RANGE_DST, tp_mask);
+ }
+
if (flow_rule_match_key(f_rule, FLOW_DISSECTOR_KEY_VLAN)) {
struct flow_match_vlan match;

--
2.25.1
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