ct_act can't offload in hardware

[wenxu <wenxu@ucloud.cn>]

Hi paul,


I test the ct offload with  tc  in net-next branch and meet some problem


gre_sys is a getap device.

# tc filter add dev gre_sys ingress prio 2 chain 0 proto ip flower  enc_dst_ip 172.168.152.75 enc_src_ip 172.168.152.208 enc_key_id 1000 enc_tos 0x0/ff dst_ip 1.1.1.7 ct_state -trk action ct zone 1 nat pipe action goto chain 1

The rule show is not_in_hw

# tc filter ls dev gre_sys ingress

filter protocol ip pref 2 flower chain 0
filter protocol ip pref 2 flower chain 0 handle 0x1
  eth_type ipv4
  dst_ip 1.1.1.7
  enc_dst_ip 172.168.152.75
  enc_src_ip 172.168.152.208
  enc_key_id 1000
  enc_tos 0x0/ff
  ct_state -trk
  not_in_hw
    action order 1: ct zone 1 nat pipe
     index 1 ref 1 bind 1
 
    action order 2: gact action goto chain 1
     random type none pass val 0
     index 1 ref 1 bind 1


# dmesg

mlx5_core 0000:81:00.0 net2: Chains on tunnel devices isn't supported without register metadata support

I update the fw to 16.27.1016 and also the problem is exist.

# ethtool -i net2

driver: mlx5e_rep
version: 5.6.0-rc5+
firmware-version: 16.27.1016 (MT_0000000080)
expansion-rom-version:
bus-info: 0000:81:00.0
supports-statistics: yes
supports-test: no
supports-eeprom-access: no
supports-register-dump: no
supports-priv-flags: no

Are there aome method to enable the register metadata support?


BR

wenxu