Commit 551871bf authored by Maksym Glubokiy's avatar Maksym Glubokiy Committed by David S. Miller
Browse files

net: prestera: add support for port range filters 



This adds support for port-range rules:

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

Co-developed-by: default avatarVolodymyr Mytnyk <volodymyr.mytnyk@plvision.eu>
Signed-off-by: default avatarVolodymyr Mytnyk <volodymyr.mytnyk@plvision.eu>
Signed-off-by: default avatarMaksym Glubokiy <maksym.glubokiy@plvision.eu>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 83d85bb0

drivers/net/ethernet/marvell/prestera/prestera_flower.c

+24 −0
Original line number Diff line number Diff line
@@ -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;