Messages in this thread | | | From | Po Liu <> | Subject | [v1,net-next 0/5] Introduce a flow gate control action and apply IEEE | Date | Tue, 24 Mar 2020 11:47:38 +0800 |
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Changes from RFC: 0000: Reduce to 5 patches and remove the 4 max frame size offload and flow metering in the policing offload action, Only keep gate action offloading implementation. 0001: No changes. 0002: - fix kfree lead ack by Jakub Kicinski and Cong Wang - License fix from Jakub Kicinski and Stephen Hemminger - Update example in commit acked by Vinicius Costa Gomes - Fix the rcu protect in tcf_gate_act() acked by Vinicius
0003: No changes 0004: No changes 0005: Acked by Vinicius Costa Gomes - Use refcount kernel lib - Update stream gate check code position - Update reduce ref names more clear
iprout2 command patches: 0000: Update license expression and add gate id 0001: Add tc action gate man page
This patch set is trying to intruduce a way to add tc flower offload for the enetc IEEE 802.1Qci (PSFP) function. There are four main feature parts in PSFP to implement the flow policing and filtering for ingress flow with IEEE 802.1Qci features. They are stream identify(this is defined in the P802.1cb exactly but needed by 802.1Qci), stream filtering, stream gate and flow metering.
The stream gate function is the important part in the features. But there is no compare actions in the qdisc filter part. The second patch introduce a ingress frame gate control flow action. tc create a gate action would provide a gate list to control class open/close state. when the gate open state, the flow could pass but not when gate state is close. The driver would repeat the gate list periodic. User also could assign a time point to start the gate list by the basetime parameter. if the basetime has passed current time, start time would calculate by the cycletime of the gate list. And it is introduce a software simulator gate control method.
The first patch is fix a flow offload can't provide dropped frame count number issue. This would be used for getting the hardware offload dropped frame.
The third patch is to adding the gate flow offloading.
The fourth patch is to add tc offload command in enetc. This is to control the on/off for the tc flower offloading.
Now the enetc driver would got the gate control list and filter mac address etc. So enetc would collected the parameters and create the stream identify entry and stream gate control entry. Then driver would create a stream filter entry by these inputs. Driver would maintain the flow chain list. The fifth patch implement the stream gate and stream filter and stream identify functions in driver by the tc flower actions and tc filter parameters.
The iproute2 test patch need to upload to:
git://git.kernel.org/pub/scm/network/iproute2/iproute2-next.git
Po Liu (5): net: qos offload add flow status with dropped count net: qos: introduce a gate control flow action net: schedule: add action gate offloading net: enetc: add hw tc hw offload features for PSPF capability net: enetc: add tc flower psfp offload driver
drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c | 2 +- .../ethernet/chelsio/cxgb4/cxgb4_tc_flower.c | 2 +- .../chelsio/cxgb4/cxgb4_tc_matchall.c | 2 +- drivers/net/ethernet/freescale/enetc/enetc.c | 34 +- drivers/net/ethernet/freescale/enetc/enetc.h | 86 ++ .../net/ethernet/freescale/enetc/enetc_hw.h | 159 +++ .../net/ethernet/freescale/enetc/enetc_pf.c | 6 + .../net/ethernet/freescale/enetc/enetc_qos.c | 1074 +++++++++++++++++ .../net/ethernet/mellanox/mlx5/core/en_tc.c | 4 +- .../ethernet/mellanox/mlxsw/spectrum_flower.c | 2 +- drivers/net/ethernet/mscc/ocelot_flower.c | 2 +- .../ethernet/netronome/nfp/flower/offload.c | 2 +- .../ethernet/netronome/nfp/flower/qos_conf.c | 2 +- include/net/act_api.h | 11 +- include/net/flow_offload.h | 15 +- include/net/pkt_cls.h | 5 +- include/net/tc_act/tc_gate.h | 169 +++ include/uapi/linux/pkt_cls.h | 1 + include/uapi/linux/tc_act/tc_gate.h | 47 + net/sched/Kconfig | 15 + net/sched/Makefile | 1 + net/sched/act_api.c | 12 +- net/sched/act_ct.c | 6 +- net/sched/act_gact.c | 7 +- net/sched/act_gate.c | 647 ++++++++++ net/sched/act_mirred.c | 6 +- net/sched/act_police.c | 6 +- net/sched/act_vlan.c | 6 +- net/sched/cls_api.c | 33 + net/sched/cls_flower.c | 3 +- net/sched/cls_matchall.c | 3 +- 31 files changed, 2329 insertions(+), 41 deletions(-) create mode 100644 include/net/tc_act/tc_gate.h create mode 100644 include/uapi/linux/tc_act/tc_gate.h create mode 100644 net/sched/act_gate.c
-- 2.17.1
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