From: John Hurley <john.hurley@netronome.com>
Date: Tue, 17 Dec 2019 21:57:18 +0000
Subject: nfp: flower: compile match for IPv6 tunnels
Patch-mainline: v5.6-rc1
Git-commit: 78a722af4ad9cb2d82f230f697220af5aa6723c1
References: bsc#1176447
IPv6 tunnel matches are now supported by firmware. Modify the NFP driver
to compile these match rules. IPv6 matches are handled similar to IPv4
tunnels with the difference the address length. The type of tunnel is
indicated by the same bitmap that is used in IPv4 with an extra bit
signifying that the IPv6 variation should be used.
Only compile IPv6 tunnel matches when the fw features symbol indicated
that they are compatible with the currently loaded fw.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/net/ethernet/netronome/nfp/flower/cmsg.h | 83 ++++++++++++++
drivers/net/ethernet/netronome/nfp/flower/main.h | 1
drivers/net/ethernet/netronome/nfp/flower/match.c | 111 +++++++++++++++-----
drivers/net/ethernet/netronome/nfp/flower/offload.c | 102 +++++++++++++-----
4 files changed, 246 insertions(+), 51 deletions(-)
--- a/drivers/net/ethernet/netronome/nfp/flower/cmsg.h
+++ b/drivers/net/ethernet/netronome/nfp/flower/cmsg.h
@@ -26,6 +26,7 @@
#define NFP_FLOWER_LAYER2_GRE BIT(0)
#define NFP_FLOWER_LAYER2_GENEVE BIT(5)
#define NFP_FLOWER_LAYER2_GENEVE_OP BIT(6)
+#define NFP_FLOWER_LAYER2_TUN_IPV6 BIT(7)
#define NFP_FLOWER_MASK_VLAN_PRIO GENMASK(15, 13)
#define NFP_FLOWER_MASK_VLAN_PRESENT BIT(12)
@@ -63,6 +64,7 @@
#define NFP_FL_MAX_GENEVE_OPT_ACT 32
#define NFP_FL_MAX_GENEVE_OPT_CNT 64
#define NFP_FL_MAX_GENEVE_OPT_KEY 32
+#define NFP_FL_MAX_GENEVE_OPT_KEY_V6 8
/* Action opcodes */
#define NFP_FL_ACTION_OPCODE_OUTPUT 0
@@ -387,6 +389,11 @@ struct nfp_flower_tun_ipv4 {
__be32 dst;
};
+struct nfp_flower_tun_ipv6 {
+ struct in6_addr src;
+ struct in6_addr dst;
+};
+
struct nfp_flower_tun_ip_ext {
u8 tos;
u8 ttl;
@@ -416,6 +423,42 @@ struct nfp_flower_ipv4_udp_tun {
__be32 tun_id;
};
+/* Flow Frame IPv6 UDP TUNNEL --> Tunnel details (11W/44B)
+ * -----------------------------------------------------------------
+ * 3 2 1
+ * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | ipv6_addr_src, 31 - 0 |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | ipv6_addr_src, 63 - 32 |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | ipv6_addr_src, 95 - 64 |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | ipv6_addr_src, 127 - 96 |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | ipv6_addr_dst, 31 - 0 |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | ipv6_addr_dst, 63 - 32 |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | ipv6_addr_dst, 95 - 64 |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | ipv6_addr_dst, 127 - 96 |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Reserved | tos | ttl |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Reserved |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | VNI | Reserved |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */
+struct nfp_flower_ipv6_udp_tun {
+ struct nfp_flower_tun_ipv6 ipv6;
+ __be16 reserved1;
+ struct nfp_flower_tun_ip_ext ip_ext;
+ __be32 reserved2;
+ __be32 tun_id;
+};
+
/* Flow Frame GRE TUNNEL --> Tunnel details (6W/24B)
* -----------------------------------------------------------------
* 3 2 1
@@ -440,6 +483,46 @@ struct nfp_flower_ipv4_gre_tun {
__be16 tun_flags;
struct nfp_flower_tun_ip_ext ip_ext;
__be16 reserved1;
+ __be16 ethertype;
+ __be32 tun_key;
+ __be32 reserved2;
+};
+
+/* Flow Frame GRE TUNNEL V6 --> Tunnel details (12W/48B)
+ * -----------------------------------------------------------------
+ * 3 2 1
+ * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | ipv6_addr_src, 31 - 0 |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | ipv6_addr_src, 63 - 32 |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | ipv6_addr_src, 95 - 64 |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | ipv6_addr_src, 127 - 96 |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | ipv6_addr_dst, 31 - 0 |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | ipv6_addr_dst, 63 - 32 |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | ipv6_addr_dst, 95 - 64 |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | ipv6_addr_dst, 127 - 96 |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | tun_flags | tos | ttl |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Reserved | Ethertype |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Key |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Reserved |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */
+struct nfp_flower_ipv6_gre_tun {
+ struct nfp_flower_tun_ipv6 ipv6;
+ __be16 tun_flags;
+ struct nfp_flower_tun_ip_ext ip_ext;
+ __be16 reserved1;
__be16 ethertype;
__be32 tun_key;
__be32 reserved2;
--- a/drivers/net/ethernet/netronome/nfp/flower/main.h
+++ b/drivers/net/ethernet/netronome/nfp/flower/main.h
@@ -43,6 +43,7 @@ struct nfp_app;
#define NFP_FL_FEATS_VF_RLIM BIT(4)
#define NFP_FL_FEATS_FLOW_MOD BIT(5)
#define NFP_FL_FEATS_PRE_TUN_RULES BIT(6)
+#define NFP_FL_FEATS_IPV6_TUN BIT(7)
#define NFP_FL_FEATS_FLOW_MERGE BIT(30)
#define NFP_FL_FEATS_LAG BIT(31)
--- a/drivers/net/ethernet/netronome/nfp/flower/match.c
+++ b/drivers/net/ethernet/netronome/nfp/flower/match.c
@@ -282,6 +282,22 @@ nfp_flower_compile_tun_ipv4_addrs(struct
}
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;
+
+ flow_rule_match_enc_ipv6_addrs(rule, &match);
+ ext->src = match.key->src;
+ ext->dst = match.key->dst;
+ msk->src = match.mask->src;
+ msk->dst = match.mask->dst;
+ }
+}
+
+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)
@@ -360,6 +376,37 @@ nfp_flower_compile_ipv4_udp_tun(struct n
nfp_flower_compile_tun_udp_key(&ext->tun_id, &msk->tun_id, rule);
}
+static 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)
+{
+ memset(ext, 0, sizeof(struct nfp_flower_ipv6_udp_tun));
+ memset(msk, 0, sizeof(struct nfp_flower_ipv6_udp_tun));
+
+ 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);
+}
+
+static 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)
+{
+ memset(ext, 0, sizeof(struct nfp_flower_ipv6_gre_tun));
+ memset(msk, 0, sizeof(struct nfp_flower_ipv6_gre_tun));
+
+ /* 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_cls_offload *flow,
struct nfp_fl_key_ls *key_ls,
@@ -446,34 +493,50 @@ int nfp_flower_compile_flow_match(struct
}
if (key_ls->key_layer_two & NFP_FLOWER_LAYER2_GRE) {
- __be32 tun_dst;
-
- nfp_flower_compile_ipv4_gre_tun((void *)ext, (void *)msk, rule);
- tun_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 = tun_dst;
- nfp_tunnel_add_ipv4_off(app, tun_dst);
+ if (key_ls->key_layer_two & NFP_FLOWER_LAYER2_TUN_IPV6) {
+ nfp_flower_compile_ipv6_gre_tun((void *)ext,
+ (void *)msk, rule);
+ ext += sizeof(struct nfp_flower_ipv6_gre_tun);
+ msk += sizeof(struct nfp_flower_ipv6_gre_tun);
+ } 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) {
- __be32 tun_dst;
-
- nfp_flower_compile_ipv4_udp_tun((void *)ext, (void *)msk, rule);
- tun_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 = tun_dst;
- nfp_tunnel_add_ipv4_off(app, tun_dst);
+ if (key_ls->key_layer_two & NFP_FLOWER_LAYER2_TUN_IPV6) {
+ nfp_flower_compile_ipv6_udp_tun((void *)ext,
+ (void *)msk, rule);
+ ext += sizeof(struct nfp_flower_ipv6_udp_tun);
+ msk += sizeof(struct nfp_flower_ipv6_udp_tun);
+ } 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) {
err = nfp_flower_compile_geneve_opt(ext, msk, rule);
--- a/drivers/net/ethernet/netronome/nfp/flower/offload.c
+++ b/drivers/net/ethernet/netronome/nfp/flower/offload.c
@@ -54,6 +54,10 @@
(BIT(FLOW_DISSECTOR_KEY_ENC_CONTROL) | \
BIT(FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS))
+#define NFP_FLOWER_WHITELIST_TUN_DISSECTOR_V6_R \
+ (BIT(FLOW_DISSECTOR_KEY_ENC_CONTROL) | \
+ BIT(FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS))
+
#define NFP_FLOWER_MERGE_FIELDS \
(NFP_FLOWER_LAYER_PORT | \
NFP_FLOWER_LAYER_MAC | \
@@ -146,10 +150,11 @@ static bool nfp_flower_check_higher_than
static int
nfp_flower_calc_opt_layer(struct flow_dissector_key_enc_opts *enc_opts,
- u32 *key_layer_two, int *key_size,
+ u32 *key_layer_two, int *key_size, bool ipv6,
struct netlink_ext_ack *extack)
{
- if (enc_opts->len > NFP_FL_MAX_GENEVE_OPT_KEY) {
+ if (enc_opts->len > NFP_FL_MAX_GENEVE_OPT_KEY ||
+ (ipv6 && enc_opts->len > NFP_FL_MAX_GENEVE_OPT_KEY_V6)) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: geneve options exceed maximum length");
return -EOPNOTSUPP;
}
@@ -167,7 +172,7 @@ nfp_flower_calc_udp_tun_layer(struct flo
struct flow_dissector_key_enc_opts *enc_op,
u32 *key_layer_two, u8 *key_layer, int *key_size,
struct nfp_flower_priv *priv,
- enum nfp_flower_tun_type *tun_type,
+ enum nfp_flower_tun_type *tun_type, bool ipv6,
struct netlink_ext_ack *extack)
{
int err;
@@ -176,7 +181,15 @@ nfp_flower_calc_udp_tun_layer(struct flo
case htons(IANA_VXLAN_UDP_PORT):
*tun_type = NFP_FL_TUNNEL_VXLAN;
*key_layer |= NFP_FLOWER_LAYER_VXLAN;
- *key_size += sizeof(struct nfp_flower_ipv4_udp_tun);
+
+ if (ipv6) {
+ *key_layer |= NFP_FLOWER_LAYER_EXT_META;
+ *key_size += sizeof(struct nfp_flower_ext_meta);
+ *key_layer_two |= NFP_FLOWER_LAYER2_TUN_IPV6;
+ *key_size += sizeof(struct nfp_flower_ipv6_udp_tun);
+ } else {
+ *key_size += sizeof(struct nfp_flower_ipv4_udp_tun);
+ }
if (enc_op) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: encap options not supported on vxlan tunnels");
@@ -192,7 +205,13 @@ nfp_flower_calc_udp_tun_layer(struct flo
*key_layer |= NFP_FLOWER_LAYER_EXT_META;
*key_size += sizeof(struct nfp_flower_ext_meta);
*key_layer_two |= NFP_FLOWER_LAYER2_GENEVE;
- *key_size += sizeof(struct nfp_flower_ipv4_udp_tun);
+
+ if (ipv6) {
+ *key_layer_two |= NFP_FLOWER_LAYER2_TUN_IPV6;
+ *key_size += sizeof(struct nfp_flower_ipv6_udp_tun);
+ } else {
+ *key_size += sizeof(struct nfp_flower_ipv4_udp_tun);
+ }
if (!enc_op)
break;
@@ -200,8 +219,8 @@ nfp_flower_calc_udp_tun_layer(struct flo
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: loaded firmware does not support geneve option offload");
return -EOPNOTSUPP;
}
- err = nfp_flower_calc_opt_layer(enc_op, key_layer_two,
- key_size, extack);
+ err = nfp_flower_calc_opt_layer(enc_op, key_layer_two, key_size,
+ ipv6, extack);
if (err)
return err;
break;
@@ -237,6 +256,8 @@ nfp_flower_calculate_key_layers(struct n
/* If any tun dissector is used then the required set must be used. */
if (dissector->used_keys & NFP_FLOWER_WHITELIST_TUN_DISSECTOR &&
+ (dissector->used_keys & NFP_FLOWER_WHITELIST_TUN_DISSECTOR_V6_R)
+ != NFP_FLOWER_WHITELIST_TUN_DISSECTOR_V6_R &&
(dissector->used_keys & NFP_FLOWER_WHITELIST_TUN_DISSECTOR_R)
!= NFP_FLOWER_WHITELIST_TUN_DISSECTOR_R) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: tunnel match not supported");
@@ -268,8 +289,10 @@ nfp_flower_calculate_key_layers(struct n
if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ENC_CONTROL)) {
struct flow_match_enc_opts enc_op = { NULL, NULL };
struct flow_match_ipv4_addrs ipv4_addrs;
+ struct flow_match_ipv6_addrs ipv6_addrs;
struct flow_match_control enc_ctl;
struct flow_match_ports enc_ports;
+ bool ipv6_tun = false;
flow_rule_match_enc_control(rule, &enc_ctl);
@@ -277,38 +300,62 @@ nfp_flower_calculate_key_layers(struct n
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: wildcarded protocols on tunnels are not supported");
return -EOPNOTSUPP;
}
- if (enc_ctl.key->addr_type != FLOW_DISSECTOR_KEY_IPV4_ADDRS) {
- NL_SET_ERR_MSG_MOD(extack, "unsupported offload: only IPv4 tunnels are supported");
+
+ ipv6_tun = enc_ctl.key->addr_type ==
+ FLOW_DISSECTOR_KEY_IPV6_ADDRS;
+ if (ipv6_tun &&
+ !(priv->flower_ext_feats & NFP_FL_FEATS_IPV6_TUN)) {
+ NL_SET_ERR_MSG_MOD(extack, "unsupported offload: firmware does not support IPv6 tunnels");
return -EOPNOTSUPP;
}
- /* These fields are already verified as used. */
- flow_rule_match_enc_ipv4_addrs(rule, &ipv4_addrs);
- if (ipv4_addrs.mask->dst != cpu_to_be32(~0)) {
- NL_SET_ERR_MSG_MOD(extack, "unsupported offload: only an exact match IPv4 destination address is supported");
+ if (!ipv6_tun &&
+ enc_ctl.key->addr_type != FLOW_DISSECTOR_KEY_IPV4_ADDRS) {
+ NL_SET_ERR_MSG_MOD(extack, "unsupported offload: tunnel address type not IPv4 or IPv6");
return -EOPNOTSUPP;
}
+ if (ipv6_tun) {
+ flow_rule_match_enc_ipv6_addrs(rule, &ipv6_addrs);
+ if (memchr_inv(&ipv6_addrs.mask->dst, 0xff,
+ sizeof(ipv6_addrs.mask->dst))) {
+ NL_SET_ERR_MSG_MOD(extack, "unsupported offload: only an exact match IPv6 destination address is supported");
+ return -EOPNOTSUPP;
+ }
+ } else {
+ flow_rule_match_enc_ipv4_addrs(rule, &ipv4_addrs);
+ if (ipv4_addrs.mask->dst != cpu_to_be32(~0)) {
+ NL_SET_ERR_MSG_MOD(extack, "unsupported offload: only an exact match IPv4 destination address is supported");
+ return -EOPNOTSUPP;
+ }
+ }
+
if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ENC_OPTS))
flow_rule_match_enc_opts(rule, &enc_op);
-
if (!flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ENC_PORTS)) {
/* check if GRE, which has no enc_ports */
- if (netif_is_gretap(netdev)) {
- *tun_type = NFP_FL_TUNNEL_GRE;
- key_layer |= NFP_FLOWER_LAYER_EXT_META;
- key_size += sizeof(struct nfp_flower_ext_meta);
- key_layer_two |= NFP_FLOWER_LAYER2_GRE;
- key_size +=
- sizeof(struct nfp_flower_ipv4_gre_tun);
+ if (!netif_is_gretap(netdev)) {
+ NL_SET_ERR_MSG_MOD(extack, "unsupported offload: an exact match on L4 destination port is required for non-GRE tunnels");
+ return -EOPNOTSUPP;
+ }
- if (enc_op.key) {
- NL_SET_ERR_MSG_MOD(extack, "unsupported offload: encap options not supported on GRE tunnels");
- return -EOPNOTSUPP;
- }
+ *tun_type = NFP_FL_TUNNEL_GRE;
+ key_layer |= NFP_FLOWER_LAYER_EXT_META;
+ key_size += sizeof(struct nfp_flower_ext_meta);
+ key_layer_two |= NFP_FLOWER_LAYER2_GRE;
+
+ if (ipv6_tun) {
+ key_layer_two |= NFP_FLOWER_LAYER2_TUN_IPV6;
+ key_size +=
+ sizeof(struct nfp_flower_ipv6_udp_tun);
} else {
- NL_SET_ERR_MSG_MOD(extack, "unsupported offload: an exact match on L4 destination port is required for non-GRE tunnels");
+ key_size +=
+ sizeof(struct nfp_flower_ipv4_udp_tun);
+ }
+
+ if (enc_op.key) {
+ NL_SET_ERR_MSG_MOD(extack, "unsupported offload: encap options not supported on GRE tunnels");
return -EOPNOTSUPP;
}
} else {
@@ -323,7 +370,8 @@ nfp_flower_calculate_key_layers(struct n
&key_layer_two,
&key_layer,
&key_size, priv,
- tun_type, extack);
+ tun_type, ipv6_tun,
+ extack);
if (err)
return err;