// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
/* Copyright (c) 2018 Mellanox Technologies. */
+#include <net/ip_tunnels.h>
#include <net/vxlan.h>
#include "lib/vxlan.h"
#include "en/tc_tun.h"
const struct ip_tunnel_key *tun_key = &e->tun_info->key;
__be32 tun_id = tunnel_id_to_key32(tun_key->tun_id);
struct udphdr *udp = (struct udphdr *)(buf);
+ const struct vxlan_metadata *md;
struct vxlanhdr *vxh;
- if (tun_key->tun_flags & TUNNEL_VXLAN_OPT)
+ if ((tun_key->tun_flags & TUNNEL_VXLAN_OPT) &&
+ e->tun_info->options_len != sizeof(*md))
return -EOPNOTSUPP;
vxh = (struct vxlanhdr *)((char *)udp + sizeof(struct udphdr));
*ip_proto = IPPROTO_UDP;
udp->dest = tun_key->tp_dst;
vxh->vx_flags = VXLAN_HF_VNI;
vxh->vx_vni = vxlan_vni_field(tun_id);
+ if (tun_key->tun_flags & TUNNEL_VXLAN_OPT) {
+ md = ip_tunnel_info_opts(e->tun_info);
+ vxlan_build_gbp_hdr(vxh, md);
+ }
+
+ return 0;
+}
+
+static int mlx5e_tc_tun_parse_vxlan_gbp_option(struct mlx5e_priv *priv,
+ struct mlx5_flow_spec *spec,
+ struct flow_cls_offload *f)
+{
+ struct flow_rule *rule = flow_cls_offload_flow_rule(f);
+ struct netlink_ext_ack *extack = f->common.extack;
+ struct flow_match_enc_opts enc_opts;
+ void *misc5_c, *misc5_v;
+ u32 *gbp, *gbp_mask;
+
+ flow_rule_match_enc_opts(rule, &enc_opts);
+
+ if (memchr_inv(&enc_opts.mask->data, 0, sizeof(enc_opts.mask->data)) &&
+ !MLX5_CAP_ESW_FT_FIELD_SUPPORT_2(priv->mdev, tunnel_header_0_1)) {
+ NL_SET_ERR_MSG_MOD(extack, "Matching on VxLAN GBP is not supported");
+ return -EOPNOTSUPP;
+ }
+
+ if (enc_opts.key->dst_opt_type != TUNNEL_VXLAN_OPT) {
+ NL_SET_ERR_MSG_MOD(extack, "Wrong VxLAN option type: not GBP");
+ return -EOPNOTSUPP;
+ }
+
+ if (enc_opts.key->len != sizeof(*gbp) ||
+ enc_opts.mask->len != sizeof(*gbp_mask)) {
+ NL_SET_ERR_MSG_MOD(extack, "VxLAN GBP option/mask len is not 32 bits");
+ return -EINVAL;
+ }
+
+ gbp = (u32 *)&enc_opts.key->data[0];
+ gbp_mask = (u32 *)&enc_opts.mask->data[0];
+
+ if (*gbp_mask & ~VXLAN_GBP_MASK) {
+ NL_SET_ERR_MSG_FMT_MOD(extack, "Wrong VxLAN GBP mask(0x%08X)\n", *gbp_mask);
+ return -EINVAL;
+ }
+
+ misc5_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, misc_parameters_5);
+ misc5_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, misc_parameters_5);
+ MLX5_SET(fte_match_set_misc5, misc5_c, tunnel_header_0, *gbp_mask);
+ MLX5_SET(fte_match_set_misc5, misc5_v, tunnel_header_0, *gbp);
+
+ spec->match_criteria_enable |= MLX5_MATCH_MISC_PARAMETERS_5;
return 0;
}
if (!enc_keyid.mask->keyid)
return 0;
+ if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ENC_OPTS)) {
+ int err;
+
+ err = mlx5e_tc_tun_parse_vxlan_gbp_option(priv, spec, f);
+ if (err)
+ return err;
+ }
+
/* match on VNI is required */
if (!MLX5_CAP_ESW_FLOWTABLE_FDB(priv->mdev,
return 0;
}
+static bool mlx5e_tc_tun_encap_info_equal_vxlan(struct mlx5e_encap_key *a,
+ struct mlx5e_encap_key *b)
+{
+ return mlx5e_tc_tun_encap_info_equal_options(a, b, TUNNEL_VXLAN_OPT);
+}
+
static int mlx5e_tc_tun_get_remote_ifindex(struct net_device *mirred_dev)
{
const struct vxlan_dev *vxlan = netdev_priv(mirred_dev);
.generate_ip_tun_hdr = mlx5e_gen_ip_tunnel_header_vxlan,
.parse_udp_ports = mlx5e_tc_tun_parse_udp_ports_vxlan,
.parse_tunnel = mlx5e_tc_tun_parse_vxlan,
- .encap_info_equal = mlx5e_tc_tun_encap_info_equal_generic,
+ .encap_info_equal = mlx5e_tc_tun_encap_info_equal_vxlan,
.get_remote_ifindex = mlx5e_tc_tun_get_remote_ifindex,
};