// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
/* Copyright (C) 2017-2018 Netronome Systems, Inc. */
#include <linux/bitfield.h>
#include <net/pkt_cls.h>
#include "cmsg.h"
#include "main.h"
void
nfp_flower_compile_meta(struct nfp_flower_meta_tci *ext,
struct nfp_flower_meta_tci *msk, u8 key_type)
{
/* Populate the metadata frame. */
ext->nfp_flow_key_layer = key_type;
ext->mask_id = ~0;
msk->nfp_flow_key_layer = key_type;
msk->mask_id = ~0;
}
void
nfp_flower_compile_tci(struct nfp_flower_meta_tci *ext,
struct nfp_flower_meta_tci *msk,
struct flow_rule *rule)
{
u16 msk_tci, key_tci;
if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_VLAN)) {
struct flow_match_vlan match;
flow_rule_match_vlan(rule, &match);
/* Populate the tci field. */
key_tci = NFP_FLOWER_MASK_VLAN_PRESENT;
key_tci |= FIELD_PREP(NFP_FLOWER_MASK_VLAN_PRIO,
match.key->vlan_priority) |
FIELD_PREP(NFP_FLOWER_MASK_VLAN_VID,
match.key->vlan_id);
msk_tci = NFP_FLOWER_MASK_VLAN_PRESENT;
msk_tci |= FIELD_PREP(NFP_FLOWER_MASK_VLAN_PRIO,
match.mask->vlan_priority) |
FIELD_PREP(NFP_FLOWER_MASK_VLAN_VID,
match.mask->vlan_id);
ext->tci |= cpu_to_be16((key_tci & msk_tci));
msk->tci |= cpu_to_be16(msk_tci);
}
}
static void
nfp_flower_compile_meta_tci(struct nfp_flower_meta_tci *ext,
struct nfp_flower_meta_tci *msk,
struct flow_rule *rule, u8 key_type, bool qinq_sup)
{
memset(ext, 0, sizeof(struct nfp_flower_meta_tci));
memset(msk, 0, sizeof(struct nfp_flower_meta_tci));
nfp_flower_compile_meta(ext, msk, key_type);
if (!qinq_sup)
nfp_flower_compile_tci(ext, msk, rule);
}
void
nfp_flower_compile_ext_meta(struct nfp_flower_ext_meta *frame, u32 key_ext)
{
frame->nfp_flow_key_layer2 = cpu_to_be32(key_ext);
}
int
nfp_flower_compile_port(struct nfp_flower_in_port *frame, u32 cmsg_port,
bool mask_version, enum nfp_flower_tun_type tun_type,
struct netlink_ext_ack *extack)
{
if (mask_version) {
frame->in_port = cpu_to_be32(~0);
return 0;
}
if (tun_type) {
frame->in_port = cpu_to_be32(NFP_FL_PORT_TYPE_TUN | tun_type);
} else {
if (!cmsg_port) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: invalid ingress interface for match offload");
return -EOPNOTSUPP;
}
frame->in_port = cpu_to_be32(cmsg_port);
}
return 0;
}
void
nfp_flower_compile_mac(struct nfp_flower_mac_mpls *ext,
struct nfp_flower_mac_mpls *msk,
struct flow_rule *rule)
{
if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ETH_ADDRS)) {
struct flow_match_eth_addrs match;
u8 tmp;
int i;
flow_rule_match_eth_addrs(rule, &match);
/* Populate mac frame. */
for (i = 0; i < ETH_ALEN; i++) {
tmp = match.key->dst[i] & match.mask->dst[i];
ext->mac_dst[i] |= tmp & (~msk->mac_dst[i]);
msk->mac_dst[i] |= match.mask->dst[i];
tmp = match.key->src[i] & match.mask->src[i];
ext->mac_src[i] |= tmp & (~msk->mac_src[i]);
msk->mac_src[i] |= match.mask->src[i];
}
}
}
int
nfp_flower_compile_mpls(struct nfp_flower_mac_mpls *ext,
struct nfp_flower_mac_mpls *msk,
struct flow_rule *rule,
struct netlink_ext_ack *extack)
{
if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_MPLS)) {
struct flow_match_mpls match;
u32 key_mpls, msk_mpls;
flow_rule_match_mpls(rule, &match);
/* Only support matching the first LSE */
if (match.mask->used_lses != 1) {
NL_SET_ERR_MSG_MOD(extack,
"unsupported offload: invalid LSE depth for MPLS match offload");
return -EOPNOTSUPP;
}
key_mpls = FIELD_PREP(NFP_FLOWER_MASK_MPLS_LB,
match.key->ls[0].mpls_label) |
FIELD_PREP(NFP_FLOWER_MASK_MPLS_TC,
match.key->ls[0].mpls_tc) |
FIELD_PREP(NFP_FLOWER_MASK_MPLS_BOS,
match.key->ls[0].mpls_bos) |
NFP_FLOWER_MASK_MPLS_Q;
msk_mpls = FIELD_PREP(NFP_FLOWER_MASK_MPLS_LB,
match.mask->ls[0].mpls_label) |
FIELD_PREP(NFP_FLOWER_MASK_MPLS_TC,
match.mask->ls[0].mpls_tc) |
FIELD_PREP(NFP_FLOWER_MASK_MPLS_BOS,
match.mask->ls[0].mpls_bos) |
NFP_FLOWER_MASK_MPLS_Q;
ext->mpls_lse |= cpu_to_be32((key_mpls & msk_mpls));
msk->mpls_lse |= cpu_to_be32(msk_mpls);
} else if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_BASIC)) {
/* Check for mpls ether type and set NFP_FLOWER_MASK_MPLS_Q
* bit, which indicates an mpls ether type but without any
* mpls fields.
*/
struct flow_match_basic match;
flow_rule_match_basic(rule, &match);
if (match.key->n_proto == cpu_to_be16(ETH_P_MPLS_UC) ||
match.key->n_proto == cpu_to_be16(ETH_P_MPLS_MC)) {
ext->mpls_lse |= cpu_to_be32(NFP_FLOWER_MASK_MPLS_Q);
msk->mpls_lse |= cpu_to_be32(NFP_FLOWER_MASK_MPLS_Q);
}
}
return 0;
}
static int
nfp_flower_compile_mac_mpls(struct nfp_flower_mac_mpls *ext,
struct nfp_flower_mac_mpls *msk,
struct flow_rule *rule,
struct netlink_ext_ack *extack)
{
memset(ext, 0, sizeof(struct nfp_flower_mac_mpls));
memset(msk, 0, sizeof(struct nfp_flower_mac_mpls));
nfp_flower_compile_mac(ext, msk, rule);
return nfp_flower_compile_mpls(ext, msk, rule, extack);
}
void
nfp_flower_compile_tport(struct nfp_flower_tp_ports *ext,
struct nfp_flower_tp_ports *msk,
struct flow_rule *rule)
{
if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_PORTS)) {
struct flow_match_ports match;
__be16 tmp;
flow_rule_match_ports(rule, &match);
tmp = match.key->src & match.mask->src;
ext->port_src |= tmp & (~msk->port_src);
msk->port_src |= match.mask->src;
tmp = match.key->dst & match.mask->dst;
ext->port_dst |= tmp & (~msk->port_dst);
msk->port_dst |= match.mask->dst;
}
}
static void
nfp_flower_compile_ip_ext(struct nfp_flower_ip_ext *ext,
struct nfp_flower_ip_ext *msk, struct flow_rule *rule)
{
if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_BASIC)) {
struct flow_match_basic match;
flow_rule_match_basic(rule, &match);
ext->proto |= match.key->ip_proto & match.mask->ip_proto;
msk->proto |= match.mask->ip_proto;
}
if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_IP)) {
struct flow_match_ip match;
u8 tmp;
flow_rule_match_ip(rule, &match);
tmp = match.key->tos & match.mask->tos;
ext->tos |= tmp & (~msk->tos);
msk->tos |= match.mask->tos;
tmp = match.key->ttl & match.mask->ttl;
ext->ttl |= tmp & (~msk->ttl);
msk->ttl |= match.mask->ttl;
}
if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_TCP)) {
u16 tcp_flags, tcp_flags_mask;
struct flow_match_tcp match;
flow_rule_match_tcp(rule, &match);
tcp_flags = be16_to_cpu(match.key->flags);
tcp_flags_mask = be16_to_cpu(match.mask->flags);
if (tcp_flags & TCPHDR_FIN)
ext->flags |= NFP_FL_TCP_FLAG_FIN;
if (tcp_flags_mask & TCPHDR_FIN)
msk->flags |= NFP_FL_TCP_FLAG_FIN;
if (tcp_flags & TCPHDR_SYN)
ext->flags |= NFP_FL_TCP_FLAG_SYN;
if (tcp_flags_mask & TCPHDR_SYN)
msk->flags |= NFP_FL_TCP_FLAG_SYN;
if (tcp_flags & TCPHDR_RST)
ext->flags |= NFP_FL_TCP_FLAG_RST;
if (tcp_flags_mask & TCPHDR_RST)
msk->flags |= NFP_FL_TCP_FLAG_RST;
if (tcp_flags & TCPHDR_PSH)
ext->flags |= NFP_FL_TCP_FLAG_PSH;
if (tcp_flags_mask & TCPHDR_PSH)
msk->flags |= NFP_FL_TCP_FLAG_PSH;
if (tcp_flags & TCPHDR_URG)
ext->flags |= NFP_FL_TCP_FLAG_URG;
if (tcp_flags_mask & TCPHDR_URG)
msk->flags |= NFP_FL_TCP_FLAG_URG;
}
if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_CONTROL)) {
struct flow_match_control match;
flow_rule_match_control(rule, &match);
if (match.key->flags & FLOW_DIS_IS_FRAGMENT)
ext->flags |= NFP_FL_IP_FRAGMENTED;
if (match.mask->flags & FLOW_DIS_IS_FRAGMENT)
msk->flags |= NFP_FL_IP_FRAGMENTED;
if (match.key->flags & FLOW_DIS_FIRST_FRAG)
ext->flags |= NFP_FL_IP_FRAG_FIRST;
if (match.mask->flags & FLOW_DIS_FIRST_FRAG)
msk->flags |= NFP_FL_IP_FRAG_FIRST;
}
}
static void
nfp_flower_fill_vlan(struct flow_match_vlan *match,
struct nfp_flower_vlan *ext,
struct nfp_flower_vlan *msk, bool outer_vlan)
{
struct flow_dissector_key_vlan *mask = match->mask;
struct flow_dissector_key_vlan *key = match->key;
u16 msk_tci, key_tci;
key_tci = NFP_FLOWER_MASK_VLAN_PRESENT;
key_tci |= FIELD_PREP(NFP_FLOWER_MASK_VLAN_PRIO,
key->vlan_priority) |
FIELD_PREP(NFP_FLOWER_MASK_VLAN_VID,
key->vlan_id);
msk_tci = NFP_FLOWER_MASK_VLAN_PRESENT;
msk_tci |= FIELD_PREP(NFP_FLOWER_MASK_VLAN_PRIO,
mask->vlan_priority) |
FIELD_PREP(NFP_FLOWER_MASK_VLAN_VID,
mask->vlan_id);
if (outer_vlan) {
ext->outer_tci |= cpu_to_be16((key_tci & msk_tci));
ext->outer_tpid |= key->vlan_tpid & mask->vlan_tpid;
msk->outer_tci |= cpu_to_be16(msk_tci);
msk->outer_tpid |= mask->vlan_tpid;
} else {
ext->inner_tci |= cpu_to_be16((key_tci & msk_tci));
ext->inner_tpid |= key->vlan_tpid & mask->vlan_tpid;
msk->inner_tci |= cpu_to_be16(msk_tci);
msk->inner_tpid |= mask->vlan_tpid;
}
}
void
nfp_flower_compile_vlan(struct nfp_flower_vlan *ext,
struct nfp_flower_vlan *msk,
struct flow_rule *rule)
{
struct flow_match_vlan match;
if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_VLAN)) {
flow_rule_match_vlan(rule, &match);
nfp_flower_fill_vlan(&match, ext, msk, true);
}
if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_CVLAN)) {
flow_rule_match_cvlan(rule, &match);
nfp_flower_fill_vlan(&match, ext, msk, false);
}
}
void
nfp_flower_compile_ipv4(struct nfp_flower_ipv4 *ext,
struct nfp_flower_ipv4 *msk, struct flow_rule *rule)
{
if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_IPV4_ADDRS)) {
struct flow_match_ipv4_addrs match;
__be32 tmp;
flow_rule_match_ipv4_addrs(rule, &match);
tmp = match.key->src & match.mask->src;
ext->ipv4_src |= tmp & (~msk->ipv4_src);
msk->ipv4_src |= match.mask->src;
tmp = match.key->dst & match.mask->dst;
ext->ipv4_dst |= tmp & (~msk->ipv4_dst);
msk->ipv4_dst |= match.mask->dst;
}
nfp_flower_compile_ip_ext(&ext->ip_ext, &msk->ip_ext, rule);
}
void
nfp_flower_compile_ipv6(struct nfp_flower_ipv6 *ext,
struct nfp_flower_ipv6 *msk, struct flow_rule *rule)
{
if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_IPV6_ADDRS)) {
struct flow_match_ipv6_addrs match;
u8 tmp;
int i;
flow_rule_match_ipv6_addrs(rule, &match);
for (i = 0; i < sizeof(ext->ipv6_src); i++) {
tmp = match.key->src.s6_addr[i] &
match.mask->src.s6_addr[i];
ext->ipv6_src.s6_addr[i] |= tmp &
(~msk->ipv6_src.s6_addr[i]);
msk->ipv6_src.s6_addr[i] |= match.mask->src.s6_addr[i];
tmp = match.key->dst.s6_addr[i] &
match.mask->dst.s6_addr[i];
ext->ipv6_dst.s6_addr[i] |= tmp &
(~msk->ipv6_dst.s6_addr[i]);
msk->ipv6_dst.s6_addr[i] |= match.mask->dst.s6_addr[i];
}
}
nfp_flower_compile_ip_ext(&ext->ip_ext, &msk->ip_ext, rule);
}
void
nfp_flower_compile_geneve_opt(u8 *ext, u8 *msk, struct flow_rule *rule)
{
struct flow_match_enc_opts match;
int i;
if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ENC_OPTS)) {
flow_rule_match_enc_opts(rule, &match);
for (i = 0; i < match.mask->len; i++) {
ext[i] |= match.key->data[i] & match.mask->data[i];
msk[i] |= match.mask->data[i];
}
}
}
static void
nfp_flower_compile_tun_ipv4_addrs(struct nfp_flower_tun_ipv4 *ext,
struct nfp_flower_tun_ipv4 *msk,
struct flow_rule *rule)
{
if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS)) {
struct flow_match_ipv4_addrs match;
flow_rule_match_enc_ipv4_addrs(rule, &match);
ext->src |= match.key->src & match.mask->src;
ext->dst |= match.key->dst & match.mask->dst;
msk->src |= match.mask->src;
msk->dst |= match.mask->dst;
}
}
static void
nfp_flower_compile_tun_ipv6_addrs(struct nfp_flower_tun_ipv6 *ext,
struct nfp_flower_tun_ipv6 *msk,
struct flow_rule *rule)
{
if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS)) {
struct flow_match_ipv6_addrs match;
int i;
flow_rule_match_enc_ipv6_addrs(rule, &match);
for (i = 0; i < sizeof(ext->src); i++) {
ext->src.s6_addr[i] |= match.key->src.s6_addr[i] &
match.mask->src.s6_addr[i];
ext->dst.s6_addr[i] |= match.key->dst.s6_addr[i] &
match.mask->dst.s6_addr[i];
msk->src.s6_addr[i] |= match.mask->src.s6_addr[i];
msk->dst.s6_addr[i] |= match.mask->dst.s6_addr[i];
}
}
}
static void
nfp_flower_compile_tun_ip_ext(struct nfp_flower_tun_ip_ext *ext,
struct nfp_flower_tun_ip_ext *msk,
struct flow_rule *rule)
{
if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ENC_IP)) {
struct flow_match_ip match;
flow_rule_match_enc_ip(rule, &match);
ext->tos |= match.key->tos & match.mask->tos;
ext->ttl |= match.key->ttl & match.mask->ttl;
msk->tos |= match.mask->tos;
msk->ttl |= match.mask->ttl;
}
}
static void
nfp_flower_compile_tun_udp_key(__be32 *key, __be32 *key_msk,
struct flow_rule *rule)
{
if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ENC_KEYID)) {
struct flow_match_enc_keyid match;
u32 vni;
flow_rule_match_enc_keyid(rule, &match);
vni = be32_to_cpu((match.key->keyid & match.mask->keyid)) <<
NFP_FL_TUN_VNI_OFFSET;
*key |= cpu_to_be32(vni);
vni = be32_to_cpu(match.mask->keyid) << NFP_FL_TUN_VNI_OFFSET;
*key_msk |= cpu_to_be32(vni);
}
}
static void
nfp_flower_compile_tun_gre_key(__be32 *key, __be32 *key_msk, __be16 *flags,
__be16 *flags_msk, struct flow_rule *rule)
{
if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ENC_KEYID)) {
struct flow_match_enc_keyid match;
flow_rule_match_enc_keyid(rule, &match);
*key |= match.key->keyid & match.mask->keyid;
*key_msk |= match.mask->keyid;
*flags = cpu_to_be16(NFP_FL_GRE_FLAG_KEY);
*flags_msk = cpu_to_be16(NFP_FL_GRE_FLAG_KEY);
}
}
void
nfp_flower_compile_ipv4_gre_tun(struct nfp_flower_ipv4_gre_tun *ext,
struct nfp_flower_ipv4_gre_tun *msk,
struct flow_rule *rule)
{
/* NVGRE is the only supported GRE tunnel type */
ext->ethertype = cpu_to_be16(ETH_P_TEB);
msk->ethertype = cpu_to_be16(~0);
nfp_flower_compile_tun_ipv4_addrs(&ext->ipv4, &msk->ipv4, rule);
nfp_flower_compile_tun_ip_ext(&ext->ip_ext, &msk->ip_ext, rule);
nfp_flower_compile_tun_gre_key(&ext->tun_key, &msk->tun_key,
&ext->tun_flags, &msk->tun_flags, rule);
}
void
nfp_flower_compile_ipv4_udp_tun(struct nfp_flower_ipv4_udp_tun *ext,
struct nfp_flower_ipv4_udp_tun *msk,
struct flow_rule *rule)
{
nfp_flower_compile_tun_ipv4_addrs(&ext->ipv4, &msk->ipv4, rule);
nfp_flower_compile_tun_ip_ext(&ext->ip_ext, &msk->ip_ext, rule);
nfp_flower_compile_tun_udp_key(&ext->tun_id, &msk->tun_id, rule);
}
void
nfp_flower_compile_ipv6_udp_tun(struct nfp_flower_ipv6_udp_tun *ext,
struct nfp_flower_ipv6_udp_tun *msk,
struct flow_rule *rule)
{
nfp_flower_compile_tun_ipv6_addrs(&ext->ipv6, &msk->ipv6, rule);
nfp_flower_compile_tun_ip_ext(&ext->ip_ext, &msk->ip_ext, rule);
nfp_flower_compile_tun_udp_key(&ext->tun_id, &msk->tun_id, rule);
}
void
nfp_flower_compile_ipv6_gre_tun(struct nfp_flower_ipv6_gre_tun *ext,
struct nfp_flower_ipv6_gre_tun *msk,
struct flow_rule *rule)
{
/* NVGRE is the only supported GRE tunnel type */
ext->ethertype = cpu_to_be16(ETH_P_TEB);
msk->ethertype = cpu_to_be16(~0);
nfp_flower_compile_tun_ipv6_addrs(&ext->ipv6, &msk->ipv6, rule);
nfp_flower_compile_tun_ip_ext(&ext->ip_ext, &msk->ip_ext, rule);
nfp_flower_compile_tun_gre_key(&ext->tun_key, &msk->tun_key,
&ext->tun_flags, &msk->tun_flags, rule);
}
int nfp_flower_compile_flow_match(struct nfp_app *app,
struct flow_rule *rule,
struct nfp_fl_key_ls *key_ls,
struct net_device *netdev,
struct nfp_fl_payload *nfp_flow,
enum nfp_flower_tun_type tun_type,
struct netlink_ext_ack *extack)
{
struct nfp_flower_priv *priv = app->priv;
bool qinq_sup;
u32 port_id;
int ext_len;
int err;
u8 *ext;
u8 *msk;
port_id = nfp_flower_get_port_id_from_netdev(app, netdev);
memset(nfp_flow->unmasked_data, 0, key_ls->key_size);
memset(nfp_flow->mask_data, 0, key_ls->key_size);
ext = nfp_flow->unmasked_data;
msk = nfp_flow->mask_data;
qinq_sup = !!(priv->flower_ext_feats & NFP_FL_FEATS_VLAN_QINQ);
nfp_flower_compile_meta_tci((struct nfp_flower_meta_tci *)ext,
(struct nfp_flower_meta_tci *)msk,
rule, key_ls->key_layer, qinq_sup);
ext += sizeof(struct nfp_flower_meta_tci);
msk += sizeof(struct nfp_flower_meta_tci);
/* Populate Extended Metadata if Required. */
if (NFP_FLOWER_LAYER_EXT_META & key_ls->key_layer) {
nfp_flower_compile_ext_meta((struct nfp_flower_ext_meta *)ext,
key_ls->key_layer_two);
nfp_flower_compile_ext_meta((struct nfp_flower_ext_meta *)msk,
key_ls->key_layer_two);
ext += sizeof(struct nfp_flower_ext_meta);
msk += sizeof(struct nfp_flower_ext_meta);
}
/* Populate Exact Port data. */
err = nfp_flower_compile_port((struct nfp_flower_in_port *)ext,
port_id, false, tun_type, extack);
if (err)
return err;
/* Populate Mask Port Data. */
err = nfp_flower_compile_port((struct nfp_flower_in_port *)msk,
port_id, true, tun_type, extack);
if (err)
return err;
ext += sizeof(struct nfp_flower_in_port);
msk += sizeof(struct nfp_flower_in_port);
if (NFP_FLOWER_LAYER_MAC & key_ls->key_layer) {
err = nfp_flower_compile_mac_mpls((struct nfp_flower_mac_mpls *)ext,
(struct nfp_flower_mac_mpls *)msk,
rule, extack);
if (err)
return err;
ext += sizeof(struct nfp_flower_mac_mpls);
msk += sizeof(struct nfp_flower_mac_mpls);
}
if (NFP_FLOWER_LAYER_TP & key_ls->key_layer) {
nfp_flower_compile_tport((struct nfp_flower_tp_ports *)ext,
(struct nfp_flower_tp_ports *)msk,
rule);
ext += sizeof(struct nfp_flower_tp_ports);
msk += sizeof(struct nfp_flower_tp_ports);
}
if (NFP_FLOWER_LAYER_IPV4 & key_ls->key_layer) {
nfp_flower_compile_ipv4((struct nfp_flower_ipv4 *)ext,
(struct nfp_flower_ipv4 *)msk,
rule);
ext += sizeof(struct nfp_flower_ipv4);
msk += sizeof(struct nfp_flower_ipv4);
}
if (NFP_FLOWER_LAYER_IPV6 & key_ls->key_layer) {
nfp_flower_compile_ipv6((struct nfp_flower_ipv6 *)ext,
(struct nfp_flower_ipv6 *)msk,
rule);
ext += sizeof(struct nfp_flower_ipv6);
msk += sizeof(struct nfp_flower_ipv6);
}
if (NFP_FLOWER_LAYER2_QINQ & key_ls->key_layer_two) {
nfp_flower_compile_vlan((struct nfp_flower_vlan *)ext,
(struct nfp_flower_vlan *)msk,
rule);
ext += sizeof(struct nfp_flower_vlan);
msk += sizeof(struct nfp_flower_vlan);
}
if (key_ls->key_layer_two & NFP_FLOWER_LAYER2_GRE) {
if (key_ls->key_layer_two & NFP_FLOWER_LAYER2_TUN_IPV6) {
struct nfp_flower_ipv6_gre_tun *gre_match;
struct nfp_ipv6_addr_entry *entry;
struct in6_addr *dst;
nfp_flower_compile_ipv6_gre_tun((void *)ext,
(void *)msk, rule);
gre_match = (struct nfp_flower_ipv6_gre_tun *)ext;
dst = &gre_match->ipv6.dst;
ext += sizeof(struct nfp_flower_ipv6_gre_tun);
msk += sizeof(struct nfp_flower_ipv6_gre_tun);
entry = nfp_tunnel_add_ipv6_off(app, dst);
if (!entry)
return -EOPNOTSUPP;
nfp_flow->nfp_tun_ipv6 = entry;
} else {
__be32 dst;
nfp_flower_compile_ipv4_gre_tun((void *)ext,
(void *)msk, rule);
dst = ((struct nfp_flower_ipv4_gre_tun *)ext)->ipv4.dst;
ext += sizeof(struct nfp_flower_ipv4_gre_tun);
msk += sizeof(struct nfp_flower_ipv4_gre_tun);
/* Store the tunnel destination in the rule data.
* This must be present and be an exact match.
*/
nfp_flow->nfp_tun_ipv4_addr = dst;
nfp_tunnel_add_ipv4_off(app, dst);
}
}
if (key_ls->key_layer & NFP_FLOWER_LAYER_VXLAN ||
key_ls->key_layer_two & NFP_FLOWER_LAYER2_GENEVE) {
if (key_ls->key_layer_two & NFP_FLOWER_LAYER2_TUN_IPV6) {
struct nfp_flower_ipv6_udp_tun *udp_match;
struct nfp_ipv6_addr_entry *entry;
struct in6_addr *dst;
nfp_flower_compile_ipv6_udp_tun((void *)ext,
(void *)msk, rule);
udp_match = (struct nfp_flower_ipv6_udp_tun *)ext;
dst = &udp_match->ipv6.dst;
ext += sizeof(struct nfp_flower_ipv6_udp_tun);
msk += sizeof(struct nfp_flower_ipv6_udp_tun);
entry = nfp_tunnel_add_ipv6_off(app, dst);
if (!entry)
return -EOPNOTSUPP;
nfp_flow->nfp_tun_ipv6 = entry;
} else {
__be32 dst;
nfp_flower_compile_ipv4_udp_tun((void *)ext,
(void *)msk, rule);
dst = ((struct nfp_flower_ipv4_udp_tun *)ext)->ipv4.dst;
ext += sizeof(struct nfp_flower_ipv4_udp_tun);
msk += sizeof(struct nfp_flower_ipv4_udp_tun);
/* Store the tunnel destination in the rule data.
* This must be present and be an exact match.
*/
nfp_flow->nfp_tun_ipv4_addr = dst;
nfp_tunnel_add_ipv4_off(app, dst);
}
if (key_ls->key_layer_two & NFP_FLOWER_LAYER2_GENEVE_OP) {
nfp_flower_compile_geneve_opt(ext, msk, rule);
}
}
/* Check that the flow key does not exceed the maximum limit.
* All structures in the key is multiples of 4 bytes, so use u32.
*/
ext_len = (u32 *)ext - (u32 *)nfp_flow->unmasked_data;
if (ext_len > NFP_FLOWER_KEY_MAX_LW) {
NL_SET_ERR_MSG_MOD(extack,
"unsupported offload: flow key too long");
return -EOPNOTSUPP;
}
return 0;
}
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