[PATCH net-next v4 03/13] net/sched: flower: define new tunnel flags

From: Asbjørn Sloth Tønnesen
Date: Fri Jul 12 2024 - 22:20:05 EST


Define new TCA_FLOWER_KEY_FLAGS_* flags for use in struct
flow_dissector_key_control, covering the same flags as
currently exposed through TCA_FLOWER_KEY_ENC_FLAGS.

Put the new flags under FLOW_DIS_F_*. The idea is that we can
later, move the existing flags under FLOW_DIS_F_* as well.

The ynl flag names have been taken from the RFC iproute2 patch.

Signed-off-by: Asbjørn Sloth Tønnesen <ast@xxxxxxxxxxx>
---
Documentation/netlink/specs/tc.yaml | 4 ++++
include/net/flow_dissector.h | 7 ++++++-
include/uapi/linux/pkt_cls.h | 4 ++++
3 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/Documentation/netlink/specs/tc.yaml b/Documentation/netlink/specs/tc.yaml
index fbbc928647fa3..aa574e3827abc 100644
--- a/Documentation/netlink/specs/tc.yaml
+++ b/Documentation/netlink/specs/tc.yaml
@@ -47,6 +47,10 @@ definitions:
entries:
- frag
- firstfrag
+ - tuncsum
+ - tundf
+ - tunoam
+ - tuncrit
-
name: tc-stats
type: struct
diff --git a/include/net/flow_dissector.h b/include/net/flow_dissector.h
index c3fce070b9129..460ea65b9e592 100644
--- a/include/net/flow_dissector.h
+++ b/include/net/flow_dissector.h
@@ -17,7 +17,8 @@ struct sk_buff;
* struct flow_dissector_key_control:
* @thoff: Transport header offset
* @addr_type: Type of key. One of FLOW_DISSECTOR_KEY_*
- * @flags: Key flags. Any of FLOW_DIS_(IS_FRAGMENT|FIRST_FRAGENCAPSULATION)
+ * @flags: Key flags.
+ * Any of FLOW_DIS_(IS_FRAGMENT|FIRST_FRAG|ENCAPSULATION|F_*)
*/
struct flow_dissector_key_control {
u16 thoff;
@@ -31,6 +32,10 @@ struct flow_dissector_key_control {
enum flow_dissector_ctrl_flags {
FLOW_DIS_IS_FRAGMENT = TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT,
FLOW_DIS_FIRST_FRAG = TCA_FLOWER_KEY_FLAGS_FRAG_IS_FIRST,
+ FLOW_DIS_F_TUNNEL_CSUM = TCA_FLOWER_KEY_FLAGS_TUNNEL_CSUM,
+ FLOW_DIS_F_TUNNEL_DONT_FRAGMENT = TCA_FLOWER_KEY_FLAGS_TUNNEL_DONT_FRAGMENT,
+ FLOW_DIS_F_TUNNEL_OAM = TCA_FLOWER_KEY_FLAGS_TUNNEL_OAM,
+ FLOW_DIS_F_TUNNEL_CRIT_OPT = TCA_FLOWER_KEY_FLAGS_TUNNEL_CRIT_OPT,

/* These flags are internal to the kernel */
FLOW_DIS_ENCAPSULATION = (TCA_FLOWER_KEY_FLAGS_MAX << 1),
diff --git a/include/uapi/linux/pkt_cls.h b/include/uapi/linux/pkt_cls.h
index 12db276f0c11e..3dc4388e944cb 100644
--- a/include/uapi/linux/pkt_cls.h
+++ b/include/uapi/linux/pkt_cls.h
@@ -677,6 +677,10 @@ enum {
enum {
TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT = (1 << 0),
TCA_FLOWER_KEY_FLAGS_FRAG_IS_FIRST = (1 << 1),
+ TCA_FLOWER_KEY_FLAGS_TUNNEL_CSUM = (1 << 2),
+ TCA_FLOWER_KEY_FLAGS_TUNNEL_DONT_FRAGMENT = (1 << 3),
+ TCA_FLOWER_KEY_FLAGS_TUNNEL_OAM = (1 << 4),
+ TCA_FLOWER_KEY_FLAGS_TUNNEL_CRIT_OPT = (1 << 5),
__TCA_FLOWER_KEY_FLAGS_MAX,
};

--
2.45.2