From: Jiri Pirko <j...@mellanox.com> Add the sample tc action, which allows to sample packet matching a classifier. The sample action peeks randomly packets, duplicates them, truncates them and adds informative metadata on the packet, for example, the input interface and the original packet length. The sampled packets are marked to allow matching them and redirecting them to a specific collector device.
The sampled packets metadata is packed using ife encapsulation. To do that, this patch-set extracts ife logics from the tc_ife action into an independent ife module, and uses that functionality to pack the metadata. To include all the needed metadata, this patch-set introduces some new IFE_META tlv types. In addition, Add the support for offloading the matchall-sample tc command in the Mellanox mlxsw driver, for ingress qdiscs. Yotam Gigi (6): Introduce ife encapsulation module act_ife: Change to use ife module ife: Introduce new metadata tlv types Introduce sample tc action mlxsw: reg: add the Monitoring Packet Sampling Configuration Register mlxsw: packet sample: Add packet sample offloading support MAINTAINERS | 7 + drivers/net/ethernet/mellanox/mlxsw/reg.h | 43 ++++ drivers/net/ethernet/mellanox/mlxsw/spectrum.c | 116 +++++++++- drivers/net/ethernet/mellanox/mlxsw/spectrum.h | 11 + drivers/net/ethernet/mellanox/mlxsw/trap.h | 1 + include/net/ife.h | 19 ++ include/net/tc_act/tc_ife.h | 3 - include/net/tc_act/tc_sample.h | 88 ++++++++ include/uapi/linux/Kbuild | 1 + include/uapi/linux/ife.h | 19 ++ include/uapi/linux/tc_act/Kbuild | 1 + include/uapi/linux/tc_act/tc_ife.h | 10 +- include/uapi/linux/tc_act/tc_sample.h | 31 +++ net/Kconfig | 1 + net/Makefile | 1 + net/ife/Kconfig | 16 ++ net/ife/Makefile | 5 + net/ife/ife.c | 147 ++++++++++++ net/sched/Kconfig | 14 ++ net/sched/Makefile | 1 + net/sched/act_ife.c | 109 +++------ net/sched/act_sample.c | 300 +++++++++++++++++++++++++ 22 files changed, 849 insertions(+), 95 deletions(-) create mode 100644 include/net/ife.h create mode 100644 include/net/tc_act/tc_sample.h create mode 100644 include/uapi/linux/ife.h create mode 100644 include/uapi/linux/tc_act/tc_sample.h create mode 100644 net/ife/Kconfig create mode 100644 net/ife/Makefile create mode 100644 net/ife/ife.c create mode 100644 net/sched/act_sample.c -- 2.5.5
