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Message-ID: <20240220105950.6814-3-michal.swiatkowski@linux.intel.com>
Date: Tue, 20 Feb 2024 11:59:50 +0100
From: Michal Swiatkowski <michal.swiatkowski@...ux.intel.com>
To: intel-wired-lan@...ts.osuosl.org
Cc: netdev@...r.kernel.org,
marcin.szycik@...el.com,
sridhar.samudrala@...el.com,
wojciech.drewek@...el.com,
Michal Swiatkowski <michal.swiatkowski@...ux.intel.com>,
Jedrzej Jagielski <jedrzej.jagielski@...el.com>
Subject: [iwl-next v1 2/2] ice: tc: allow ip_proto matching
Add new matching type. There is no encap version of ip_proto field.
Use it in the same lookup type as for TTL. In hardware it have the same
protocol ID, but different offset.
Example command to add filter with ip_proto:
$tc filter add dev eth10 ingress protocol ip flower ip_proto icmp \
skip_sw action mirred egress redirect dev eth0
Reviewed-by: Jedrzej Jagielski <jedrzej.jagielski@...el.com>
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@...ux.intel.com>
---
drivers/net/ethernet/intel/ice/ice_tc_lib.c | 17 +++++++++++++++--
drivers/net/ethernet/intel/ice/ice_tc_lib.h | 1 +
2 files changed, 16 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/intel/ice/ice_tc_lib.c b/drivers/net/ethernet/intel/ice/ice_tc_lib.c
index 49ed5fd7db10..f7c0f62fb730 100644
--- a/drivers/net/ethernet/intel/ice/ice_tc_lib.c
+++ b/drivers/net/ethernet/intel/ice/ice_tc_lib.c
@@ -78,7 +78,8 @@ ice_tc_count_lkups(u32 flags, struct ice_tc_flower_lyr_2_4_hdrs *headers,
ICE_TC_FLWR_FIELD_DEST_IPV6 | ICE_TC_FLWR_FIELD_SRC_IPV6))
lkups_cnt++;
- if (flags & (ICE_TC_FLWR_FIELD_IP_TOS | ICE_TC_FLWR_FIELD_IP_TTL))
+ if (flags & (ICE_TC_FLWR_FIELD_IP_TOS | ICE_TC_FLWR_FIELD_IP_TTL |
+ ICE_TC_FLWR_FIELD_IP_PROTO))
lkups_cnt++;
/* are L2TPv3 options specified? */
@@ -530,7 +531,8 @@ ice_tc_fill_rules(struct ice_hw *hw, u32 flags,
}
if (headers->l2_key.n_proto == htons(ETH_P_IP) &&
- (flags & (ICE_TC_FLWR_FIELD_IP_TOS | ICE_TC_FLWR_FIELD_IP_TTL))) {
+ (flags & (ICE_TC_FLWR_FIELD_IP_TOS | ICE_TC_FLWR_FIELD_IP_TTL |
+ ICE_TC_FLWR_FIELD_IP_PROTO))) {
list[i].type = ice_proto_type_from_ipv4(inner);
if (flags & ICE_TC_FLWR_FIELD_IP_TOS) {
@@ -545,6 +547,13 @@ ice_tc_fill_rules(struct ice_hw *hw, u32 flags,
headers->l3_mask.ttl;
}
+ if (flags & ICE_TC_FLWR_FIELD_IP_PROTO) {
+ list[i].h_u.ipv4_hdr.protocol =
+ headers->l3_key.ip_proto;
+ list[i].m_u.ipv4_hdr.protocol =
+ headers->l3_mask.ip_proto;
+ }
+
i++;
}
@@ -1515,7 +1524,11 @@ ice_parse_cls_flower(struct net_device *filter_dev, struct ice_vsi *vsi,
headers->l2_key.n_proto = cpu_to_be16(n_proto_key);
headers->l2_mask.n_proto = cpu_to_be16(n_proto_mask);
+
+ if (match.key->ip_proto)
+ fltr->flags |= ICE_TC_FLWR_FIELD_IP_PROTO;
headers->l3_key.ip_proto = match.key->ip_proto;
+ headers->l3_mask.ip_proto = match.mask->ip_proto;
}
if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ETH_ADDRS)) {
diff --git a/drivers/net/ethernet/intel/ice/ice_tc_lib.h b/drivers/net/ethernet/intel/ice/ice_tc_lib.h
index 65d387163a46..856f371d0687 100644
--- a/drivers/net/ethernet/intel/ice/ice_tc_lib.h
+++ b/drivers/net/ethernet/intel/ice/ice_tc_lib.h
@@ -34,6 +34,7 @@
#define ICE_TC_FLWR_FIELD_VLAN_PRIO BIT(27)
#define ICE_TC_FLWR_FIELD_CVLAN_PRIO BIT(28)
#define ICE_TC_FLWR_FIELD_VLAN_TPID BIT(29)
+#define ICE_TC_FLWR_FIELD_IP_PROTO BIT(30)
#define ICE_TC_FLOWER_MASK_32 0xFFFFFFFF
--
2.42.0
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