psample: Add additional metadata attributes

Extend psample to report the following attributes when available:

* Output traffic class as a 16-bit value
* Output traffic class occupancy in bytes as a 64-bit value
* End-to-end latency of the packet in nanoseconds resolution
* Software timestamp in nanoseconds resolution (always available)
* Packet's protocol. Needed for packet dissection in user space (always
  available)

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ido Schimmel 2021-03-14 14:19:31 +02:00 committed by David S. Miller
parent a03e99d39f
commit 07e1a5809b
3 changed files with 52 additions and 1 deletions

View file

@ -16,6 +16,13 @@ enum {
/* commands attributes */
PSAMPLE_ATTR_GROUP_REFCOUNT,
PSAMPLE_ATTR_PAD,
PSAMPLE_ATTR_OUT_TC, /* u16 */
PSAMPLE_ATTR_OUT_TC_OCC, /* u64, bytes */
PSAMPLE_ATTR_LATENCY, /* u64, nanoseconds */
PSAMPLE_ATTR_TIMESTAMP, /* u64, nanoseconds */
PSAMPLE_ATTR_PROTO, /* u16 */
__PSAMPLE_ATTR_MAX
};