From: Jakub Kicinski Date: Fri, 25 Feb 2022 05:51:10 +0000 (-0800) Subject: Merge branch 'nfp-flow-independent-tc-action-hardware-offload' X-Git-Tag: v6.6.17~7931^2~254 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=a46e3d5eb7050755c6e47e378af39289f4a727c6;p=platform%2Fkernel%2Flinux-rpi.git Merge branch 'nfp-flow-independent-tc-action-hardware-offload' Simon Horman says: ==================== nfp: flow-independent tc action hardware offload Baowen Zheng says: Allow nfp NIC to offload tc actions independent of flows. The motivation for this work is to offload tc actions independent of flows for nfp NIC. We allow nfp driver to provide hardware offload of OVS metering feature - which calls for policers that may be used by multiple flows and whose lifecycle is independent of any flows that use them. When nfp driver tries to offload a flow table using the independent action, the driver will search if the action is already offloaded to the hardware. If not, the flow table offload will fail. When the nfp NIC successes to offload an action, the user can check in_hw_count when dumping the tc action. Tc cli command to offload and dump an action: # tc actions add action police rate 100mbit burst 10000k index 200 skip_sw # tc -s -d actions list action police total acts 1 action order 0: police 0xc8 rate 100Mbit burst 10000Kb mtu 2Kb action reclassify overhead 0b linklayer ethernet ref 1 bind 0 installed 142 sec used 0 sec Action statistics: Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0) backlog 0b 0p requeues 0 skip_sw in_hw in_hw_count 1 used_hw_stats delayed ==================== Link: https://lore.kernel.org/r/20220223162302.97609-1-simon.horman@corigine.com Signed-off-by: Jakub Kicinski --- a46e3d5eb7050755c6e47e378af39289f4a727c6