From: Gavin Li <gav...@nvidia.com>
Add TC offload support for vxlan encap with gbp option
Signed-off-by: Gavin Li <gav...@nvidia.com>
Reviewed-by: Gavi Teitz <g...@nvidia.com>
Reviewed-by: Roi Dayan <r...@nvidia.com>
---
acinclude.m4 | 7 ++++
include/linux/tc_act/tc_tunnel_key.h | 17 +++++++-
lib/netdev-offload-tc.c | 31 ++++++++++++++-
lib/odp-util.c | 41 ++++++++++++++------
lib/odp-util.h | 3 ++
lib/tc.c | 58 ++++++++++++++++++++++++++++
lib/tc.h | 1 +
7 files changed, 143 insertions(+), 15 deletions(-)
diff --git a/acinclude.m4 b/acinclude.m4
index ac1eab790041..690a13c25967 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -191,6 +191,13 @@ AC_DEFUN([OVS_CHECK_LINUX_TC], [
[AC_DEFINE([HAVE_TCA_TUNNEL_KEY_ENC_TTL], [1],
[Define to 1 if TCA_TUNNEL_KEY_ENC_TTL is available.])])
+ AC_COMPILE_IFELSE([
+ AC_LANG_PROGRAM([#include <linux/tc_act/tc_tunnel_key.h>], [
+ int x = TCA_TUNNEL_KEY_ENC_OPTS_VXLAN;
+ ])],
+ [AC_DEFINE([HAVE_TCA_TUNNEL_KEY_ENC_OPTS_VXLAN], [1],
+ [Define to 1 if TCA_TUNNEL_KEY_ENC_OPTS_VXLAN is available.])])
+
AC_COMPILE_IFELSE([
AC_LANG_PROGRAM([#include <linux/tc_act/tc_pedit.h>], [
int x = TCA_PEDIT_KEY_EX_HDR_TYPE_UDP;
diff --git a/include/linux/tc_act/tc_tunnel_key.h
b/include/linux/tc_act/tc_tunnel_key.h
index f13acf17dd75..17291b90bf3c 100644
--- a/include/linux/tc_act/tc_tunnel_key.h
+++ b/include/linux/tc_act/tc_tunnel_key.h
@@ -1,7 +1,7 @@
#ifndef __LINUX_TC_ACT_TC_TUNNEL_KEY_WRAPPER_H
#define __LINUX_TC_ACT_TC_TUNNEL_KEY_WRAPPER_H 1
-#if defined(__KERNEL__) || defined(HAVE_TCA_TUNNEL_KEY_ENC_TTL)
+#if defined(__KERNEL__) || defined(HAVE_TCA_TUNNEL_KEY_ENC_OPTS_VXLAN)
#include_next <linux/tc_act/tc_tunnel_key.h>
#else
@@ -53,6 +53,10 @@ enum {
* TCA_TUNNEL_KEY_ENC_OPTS_GENEVE
* attributes
*/
+ TCA_TUNNEL_KEY_ENC_OPTS_VXLAN, /* Nested
+ * TCA_TUNNEL_KEY_ENC_OPTS_VXLAN
+ * attributes
+ */
__TCA_TUNNEL_KEY_ENC_OPTS_MAX,
};
@@ -70,6 +74,15 @@ enum {
#define TCA_TUNNEL_KEY_ENC_OPT_GENEVE_MAX \
(__TCA_TUNNEL_KEY_ENC_OPT_GENEVE_MAX - 1)
-#endif /* __KERNEL__ || HAVE_TCA_TUNNEL_KEY_ENC_TTL */
+enum {
+ TCA_TUNNEL_KEY_ENC_OPT_VXLAN_UNSPEC,
+ TCA_TUNNEL_KEY_ENC_OPT_VXLAN_GBP, /* u32 */
+ __TCA_TUNNEL_KEY_ENC_OPT_VXLAN_MAX,
+};
+
+#define TCA_TUNNEL_KEY_ENC_OPT_VXLAN_MAX \
+ (__TCA_TUNNEL_KEY_ENC_OPT_VXLAN_MAX - 1)
+
+#endif /* __KERNEL__ || HAVE_TCA_TUNNEL_KEY_ENC_OPTS_VXLAN */
#endif /* __LINUX_TC_ACT_TC_TUNNEL_KEY_WRAPPER_H */
diff --git a/lib/netdev-offload-tc.c b/lib/netdev-offload-tc.c
index 1c97681bc92b..a32ed8021c4b 100644
--- a/lib/netdev-offload-tc.c
+++ b/lib/netdev-offload-tc.c
@@ -668,6 +668,24 @@ static void parse_tc_flower_geneve_opts(struct tc_action
*action,
nl_msg_end_nested(buf, geneve_off);
}
+static void
+parse_tc_flower_vxlan_tun_opts(struct tc_action *action,
+ struct ofpbuf *buf)
+{
+ size_t gbp_off;
+ uint32_t gbp_raw;
+
+ if (!action->encap.gbp.id_present) {
+ return;
+ }
+
+ gbp_off = nl_msg_start_nested(buf, OVS_TUNNEL_KEY_ATTR_VXLAN_OPTS);
+ gbp_raw = odp_encode_gbp_raw(action->encap.gbp.flags,
+ action->encap.gbp.id);
+ nl_msg_put_u32(buf, OVS_VXLAN_EXT_GBP, gbp_raw);
+ nl_msg_end_nested(buf, gbp_off);
+}
+
static void
flower_tun_opt_to_match(struct match *match, struct tc_flower *flower)
{
@@ -863,7 +881,7 @@ parse_tc_flower_to_actions__(struct tc_flower *flower,
struct ofpbuf *buf,
if (!action->encap.no_csum) {
nl_msg_put_flag(buf, OVS_TUNNEL_KEY_ATTR_CSUM);
}
-
+ parse_tc_flower_vxlan_tun_opts(action, buf);
parse_tc_flower_geneve_opts(action, buf);
nl_msg_end_nested(buf, tunnel_offset);
nl_msg_end_nested(buf, set_offset);
@@ -1552,6 +1570,7 @@ parse_put_flow_set_action(struct tc_flower *flower,
struct tc_action *action,
action->type = TC_ACT_ENCAP;
action->encap.id_present = false;
+ action->encap.gbp.id_present = false;
action->encap.no_csum = 1;
flower->action_count++;
NL_ATTR_FOR_EACH_UNSAFE(tun_attr, tun_left, tunnel, tunnel_len) {
@@ -1613,6 +1632,16 @@ parse_put_flow_set_action(struct tc_flower *flower,
struct tc_action *action,
action->encap.data.present.len = nl_attr_get_size(tun_attr);
}
break;
+ case OVS_TUNNEL_KEY_ATTR_VXLAN_OPTS: {
+ if (odp_vxlan_tun_opts_from_attr(tun_attr,
+ &action->encap.gbp.id,
+ &action->encap.gbp.flags,
+ &action->encap.gbp.id_present)) {
+ VLOG_ERR_RL(&rl, "error parsing VXLAN options");
+ return EINVAL;
+ }
+ }
+ break;
default:
VLOG_DBG_RL(&rl, "unsupported tunnel key attribute %d",
nl_attr_type(tun_attr));
diff --git a/lib/odp-util.c b/lib/odp-util.c
index d2414eb559ba..db6fce138476 100644
--- a/lib/odp-util.c
+++ b/lib/odp-util.c
@@ -3149,22 +3149,13 @@ odp_tun_key_from_attr__(const struct nlattr *attr, bool
is_mask,
tun->flags |= FLOW_TNL_F_OAM;
break;
case OVS_TUNNEL_KEY_ATTR_VXLAN_OPTS: {
- static const struct nl_policy vxlan_opts_policy[] = {
- [OVS_VXLAN_EXT_GBP] = { .type = NL_A_U32 },
- };
- struct nlattr *ext[ARRAY_SIZE(vxlan_opts_policy)];
-
- if (!nl_parse_nested(a, vxlan_opts_policy, ext, ARRAY_SIZE(ext))) {
+ if (odp_vxlan_tun_opts_from_attr(a, &tun->gbp_id,
+ &tun->gbp_flags,
+ NULL)) {
odp_parse_error(&rl, errorp, "error parsing VXLAN options");
return ODP_FIT_ERROR;
}
- if (ext[OVS_VXLAN_EXT_GBP]) {
- uint32_t gbp = nl_attr_get_u32(ext[OVS_VXLAN_EXT_GBP]);
-
- odp_decode_gbp_raw(gbp, &tun->gbp_id, &tun->gbp_flags);
- }
-
break;
}
case OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS:
@@ -8844,3 +8835,29 @@ commit_odp_actions(const struct flow *flow, struct flow
*base,
return slow1 ? slow1 : slow2;
}
+
+int
+odp_vxlan_tun_opts_from_attr(const struct nlattr *tun_attr, ovs_be16 *id,
+ uint8_t *flags, bool *id_present)
+{
+ static const struct nl_policy vxlan_opts_policy[] = {
+ [OVS_VXLAN_EXT_GBP] = { .type = NL_A_U32 },
+ };
+ struct nlattr *ext[ARRAY_SIZE(vxlan_opts_policy)];
+
+ if (!nl_parse_nested(tun_attr, vxlan_opts_policy, ext, ARRAY_SIZE(ext))) {
+ return EINVAL;
+ }
+
+ if (ext[OVS_VXLAN_EXT_GBP]) {
+ uint32_t gbp_raw = nl_attr_get_u32(ext[OVS_VXLAN_EXT_GBP]);
+
+ odp_decode_gbp_raw(gbp_raw, id, flags);
+ }
+
+ if (id_present) {
+ *id_present = !!ext[OVS_VXLAN_EXT_GBP];
+ }
+
+ return 0;
+}
diff --git a/lib/odp-util.h b/lib/odp-util.h
index 163efe7a87b5..8c7baa680ddb 100644
--- a/lib/odp-util.h
+++ b/lib/odp-util.h
@@ -292,6 +292,9 @@ enum slow_path_reason commit_odp_actions(const struct flow
*,
bool pending_decap,
struct ofpbuf *encap_data);
+int odp_vxlan_tun_opts_from_attr(const struct nlattr *tun_attr, ovs_be16 *id,
+ uint8_t *flags, bool *id_present);
+
/* ofproto-dpif interface.
*
* The following types and functions are logically part of ofproto-dpif.
diff --git a/lib/tc.c b/lib/tc.c
index 7434b0150f74..2da43e557c3d 100644
--- a/lib/tc.c
+++ b/lib/tc.c
@@ -1290,6 +1290,35 @@ nl_parse_act_geneve_opts(const struct nlattr *in_nlattr,
return 0;
}
+static int
+nl_parse_act_vxlan_opts(struct nlattr *in_nlattr, struct tc_action *action)
+{
+ const struct ofpbuf *msg;
+ struct nlattr *nla;
+ struct ofpbuf buf;
+ size_t left;
+
+ nl_attr_get_nested(in_nlattr, &buf);
+ msg = &buf;
+
+ NL_ATTR_FOR_EACH (nla, left, ofpbuf_at(msg, 0, 0), msg->size) {
+ uint16_t type = nl_attr_type(nla);
+ int32_t gbp_raw;
+
+ switch (type) {
+ case TCA_FLOWER_KEY_ENC_OPT_VXLAN_GBP:
+ gbp_raw = nl_attr_get_u32(nla);
+ odp_decode_gbp_raw(gbp_raw, &action->encap.gbp.id,
+ &action->encap.gbp.flags);
+ action->encap.gbp.id_present = true;
+
+ break;
+ }
+ }
+
+ return 0;
+}
+
static int
nl_parse_act_tunnel_opts(struct nlattr *options, struct tc_action *action)
{
@@ -1315,6 +1344,13 @@ nl_parse_act_tunnel_opts(struct nlattr *options, struct
tc_action *action)
return err;
}
+ break;
+ case TCA_TUNNEL_KEY_ENC_OPTS_VXLAN:
+ err = nl_parse_act_vxlan_opts(nla, action);
+ if (err) {
+ return err;
+ }
+
break;
}
}
@@ -2640,6 +2676,27 @@ nl_msg_put_act_tunnel_geneve_option(struct ofpbuf
*request,
nl_msg_end_nested(request, outer);
}
+static void
+nl_msg_put_act_tunnel_vxlan_opts(struct ofpbuf *request,
+ struct tc_action_encap *encap)
+{
+ size_t outer, inner;
+ uint32_t gbp_raw;
+
+ if (!encap->gbp.id_present) {
+ return;
+ }
+
+ gbp_raw = odp_encode_gbp_raw(encap->gbp.flags,
+ encap->gbp.id);
+ outer = nl_msg_start_nested_with_flag(request, TCA_TUNNEL_KEY_ENC_OPTS);
+ inner = nl_msg_start_nested_with_flag(request,
+ TCA_TUNNEL_KEY_ENC_OPTS_VXLAN);
+ nl_msg_put_u32(request, TCA_TUNNEL_KEY_ENC_OPT_VXLAN_GBP, gbp_raw);
+ nl_msg_end_nested(request, inner);
+ nl_msg_end_nested(request, outer);
+}
+
static void
nl_msg_put_act_tunnel_key_set(struct ofpbuf *request,
struct tc_action_encap *encap,
@@ -2680,6 +2737,7 @@ nl_msg_put_act_tunnel_key_set(struct ofpbuf *request,
nl_msg_put_be16(request, TCA_TUNNEL_KEY_ENC_DST_PORT,
encap->tp_dst);
}
+ nl_msg_put_act_tunnel_vxlan_opts(request, encap);
nl_msg_put_act_tunnel_geneve_option(request, &encap->data);
nl_msg_put_u8(request, TCA_TUNNEL_KEY_NO_CSUM, encap->no_csum);
}
diff --git a/lib/tc.h b/lib/tc.h
index 1d648282a004..06707ffa4678 100644
--- a/lib/tc.h
+++ b/lib/tc.h
@@ -227,6 +227,7 @@ struct tc_action_encap {
struct in6_addr ipv6_dst;
} ipv6;
struct tun_metadata data;
+ struct tc_tunnel_gbp gbp;
};
struct tc_action {
--
2.38.0
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